NOAA SWPC ziņojumi, novērojumi un brīdinājumi

Nacionālās okeānu un atmosfēras pārvaldes Kosmosa laikapstākļu prognozēšanas centrs ("NOAA" "SWPC") ir oficiālā ASV kosmosa laikapstākļu valdības aģentūra, kas sniedz brīdinājumus, paziņojumus un ziņojumus par kosmosa laikapstākļu izmaiņām. Zemāk atradīsiet jaunākos "NOAA" "SWPC" izdotos kosmosa laikapstākļu brīdinājumus, paziņojumus un ziņojumus.

piektdiena, 2024. 12. aprīlis

21:12 UTC

Space Weather Message Code: WATA20
Serial Number: 996
Issue Time: 2024 Apr 12 2112 UTC

WATCH: Geomagnetic Storm Category G1 Predicted

Highest Storm Level Predicted by Day:
Apr 13: None (Below G1) Apr 14: G1 (Minor) Apr 15: None (Below G1)

THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

ceturtdiena, 2024. 11. aprīlis

17:27 UTC

Space Weather Message Code: SUMXM5
Serial Number: 214
Issue Time: 2024 Apr 11 1727 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2024 Apr 11 1652 UTC
Maximum Time: 2024 Apr 11 1706 UTC
End Time: 2024 Apr 11 1711 UTC
X-ray Class: M5.4
Location: S15E90
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

17:14 UTC

Space Weather Message Code: ALTTP4
Serial Number: 629
Issue Time: 2024 Apr 11 1714 UTC

ALERT: Type IV Radio Emission
Begin Time: 2024 Apr 11 1659 UTC



Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.

17:07 UTC

Space Weather Message Code: ALTXMF
Serial Number: 355
Issue Time: 2024 Apr 11 1707 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2024 Apr 11 1705 UTC
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

otrdiena, 2024. 9. aprīlis

05:34 UTC

Space Weather Message Code: WARK04
Serial Number: 4584
Issue Time: 2024 Apr 09 0534 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 Apr 09 0533 UTC
Valid To: 2024 Apr 09 1200 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

pirmdiena, 2024. 8. aprīlis

05:21 UTC

Space Weather Message Code: WARK04
Serial Number: 4583
Issue Time: 2024 Apr 08 0521 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 Apr 08 0520 UTC
Valid To: 2024 Apr 08 1500 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

sestdiena, 2024. 6. aprīlis

02:03 UTC

Space Weather Message Code: WARK04
Serial Number: 4582
Issue Time: 2024 Apr 06 0203 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 Apr 06 0205 UTC
Valid To: 2024 Apr 06 1200 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

piektdiena, 2024. 5. aprīlis

18:06 UTC

Space Weather Message Code: WATA20
Serial Number: 995
Issue Time: 2024 Apr 05 1806 UTC

CANCEL WATCH: Geomagnetic Storm Category G1 Predicted
Cancel Serial Number: 994
Original Issue Time: 2024 Apr 02 1926 UTC

Comment: Conditions no longer meet watch criteria.

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

05:55 UTC

Space Weather Message Code: WARK04
Serial Number: 4581
Issue Time: 2024 Apr 05 0555 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4580
Valid From: 2024 Apr 04 1138 UTC
Now Valid Until: 2024 Apr 05 2359 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

00:02 UTC

Space Weather Message Code: ALTK04
Serial Number: 2437
Issue Time: 2024 Apr 05 0002 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2024 Apr 04 2359 UTC
Synoptic Period: 2100-0000 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

ceturtdiena, 2024. 4. aprīlis

22:56 UTC

Space Weather Message Code: WARK04
Serial Number: 4580
Issue Time: 2024 Apr 04 2256 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4579
Valid From: 2024 Apr 04 1138 UTC
Now Valid Until: 2024 Apr 05 0600 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

11:39 UTC

Space Weather Message Code: WARK04
Serial Number: 4579
Issue Time: 2024 Apr 04 1139 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 Apr 04 1138 UTC
Valid To: 2024 Apr 04 2359 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

trešdiena, 2024. 3. aprīlis

02:10 UTC

Space Weather Message Code: WARK04
Serial Number: 4578
Issue Time: 2024 Apr 03 0210 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 Apr 03 0210 UTC
Valid To: 2024 Apr 03 0600 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

otrdiena, 2024. 2. aprīlis

19:26 UTC

Space Weather Message Code: WATA20
Serial Number: 994
Issue Time: 2024 Apr 02 1926 UTC

WATCH: Geomagnetic Storm Category G1 Predicted

Highest Storm Level Predicted by Day:
Apr 03: None (Below G1) Apr 04: G1 (Minor) Apr 05: G1 (Minor)

THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

11:03 UTC

Space Weather Message Code: WARK04
Serial Number: 4577
Issue Time: 2024 Apr 02 1103 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 Apr 02 1102 UTC
Valid To: 2024 Apr 02 1800 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

pirmdiena, 2024. 1. aprīlis

18:08 UTC

Space Weather Message Code: WATA20
Serial Number: 993
Issue Time: 2024 Apr 01 1808 UTC

WATCH: Geomagnetic Storm Category G1 Predicted

Highest Storm Level Predicted by Day:
Apr 02: None (Below G1) Apr 03: None (Below G1) Apr 04: G1 (Minor)

THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

08:03 UTC

Space Weather Message Code: ALTK04
Serial Number: 2436
Issue Time: 2024 Apr 01 0803 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2024 Apr 01 0803 UTC
Synoptic Period: 0600-0900 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

07:39 UTC

Space Weather Message Code: WARK04
Serial Number: 4576
Issue Time: 2024 Apr 01 0739 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 Apr 01 0740 UTC
Valid To: 2024 Apr 01 1500 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

svētdiena, 2024. 31. marts

02:00 UTC

Space Weather Message Code: ALTK04
Serial Number: 2435
Issue Time: 2024 Mar 31 0200 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2024 Mar 31 0158 UTC
Synoptic Period: 0000-0300 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

01:48 UTC

Space Weather Message Code: WARK04
Serial Number: 4575
Issue Time: 2024 Mar 31 0148 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 Mar 31 0147 UTC
Valid To: 2024 Mar 31 1800 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

sestdiena, 2024. 30. marts

22:24 UTC

Space Weather Message Code: SUMXM5
Serial Number: 213
Issue Time: 2024 Mar 30 2224 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2024 Mar 30 2101 UTC
Maximum Time: 2024 Mar 30 2116 UTC
End Time: 2024 Mar 30 2215 UTC
X-ray Class: M9.4
Location: S13W88
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

21:16 UTC

Space Weather Message Code: ALTXMF
Serial Number: 354
Issue Time: 2024 Mar 30 2116 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2024 Mar 30 2114 UTC
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

ceturtdiena, 2024. 28. marts

23:37 UTC

Space Weather Message Code: SUMXM5
Serial Number: 212
Issue Time: 2024 Mar 28 2112 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2024 Mar 28 2029 UTC
Maximum Time: 2024 Mar 28 2056 UTC
End Time: 2024 Mar 28 2101 UTC
X-ray Class: X1.1
Optical Class: 3b
Location: S14W61
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

21:12 UTC

Space Weather Message Code: SUMXM5
Serial Number: 212
Issue Time: 2024 Mar 28 2112 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2024 Mar 28 2029 UTC
Maximum Time: 2024 Mar 28 2056 UTC
End Time: 2024 Mar 28 2101 UTC
X-ray Class: X1.1
Optical Class: 3b
Location: S14W61
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

20:45 UTC

Space Weather Message Code: ALTXMF
Serial Number: 353
Issue Time: 2024 Mar 28 2045 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2024 Mar 28 2041 UTC
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

16:33 UTC

Space Weather Message Code: SUMXM5
Serial Number: 211
Issue Time: 2024 Mar 28 1633 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2024 Mar 28 1540 UTC
Maximum Time: 2024 Mar 28 1556 UTC
End Time: 2024 Mar 28 1603 UTC
X-ray Class: M6.1
Optical Class: 1n
Location: S13W56
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

16:00 UTC

Space Weather Message Code: ALTXMF
Serial Number: 352
Issue Time: 2024 Mar 28 1600 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2024 Mar 28 1556 UTC
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

06:45 UTC

Space Weather Message Code: SUMXM5
Serial Number: 210
Issue Time: 2024 Mar 28 0645 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2024 Mar 28 0616 UTC
Maximum Time: 2024 Mar 28 0629 UTC
End Time: 2024 Mar 28 0636 UTC
X-ray Class: M7.0
Location: S13W52
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

06:29 UTC

Space Weather Message Code: ALTXMF
Serial Number: 351
Issue Time: 2024 Mar 28 0629 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2024 Mar 28 0627 UTC
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

otrdiena, 2024. 26. marts

02:51 UTC

Space Weather Message Code: WARK04
Serial Number: 4574
Issue Time: 2024 Mar 26 0251 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4573
Valid From: 2024 Mar 23 0415 UTC
Now Valid Until: 2024 Mar 26 0900 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

01:30 UTC

Space Weather Message Code: SUMPX1
Serial Number: 110
Issue Time: 2024 Mar 26 0130 UTC

SUMMARY: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2024 Mar 23 0815 UTC
Maximum Time: 2024 Mar 23 1820 UTC
End Time: 2024 Mar 25 1515 UTC
Maximum 10MeV Flux: 956 pfu
NOAA Scale: S2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

pirmdiena, 2024. 25. marts

19:12 UTC

Space Weather Message Code: WARK04
Serial Number: 4573
Issue Time: 2024 Mar 25 1912 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4572
Valid From: 2024 Mar 23 0415 UTC
Now Valid Until: 2024 Mar 26 0300 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

11:53 UTC

Space Weather Message Code: WARPX1
Serial Number: 554
Issue Time: 2024 Mar 25 1153 UTC

EXTENDED WARNING: Proton 10MeV Integral Flux above 10pfu expected
Extension to Serial Number: 553
Valid From: 2024 Mar 23 0617 UTC
Now Valid Until: 2024 Mar 25 2359 UTC
Warning Condition: Persistence
Predicted NOAA Scale: S1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

08:56 UTC

Space Weather Message Code: WARK04
Serial Number: 4572
Issue Time: 2024 Mar 25 0856 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4571
Valid From: 2024 Mar 23 0415 UTC
Now Valid Until: 2024 Mar 25 2100 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

08:56 UTC

Space Weather Message Code: WARK05
Serial Number: 1862
Issue Time: 2024 Mar 25 0856 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1861
Valid From: 2024 Mar 23 2036 UTC
Now Valid Until: 2024 Mar 25 1800 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

08:56 UTC

Space Weather Message Code: WARK06
Serial Number: 513
Issue Time: 2024 Mar 25 0856 UTC

EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 512
Valid From: 2024 Mar 24 1435 UTC
Now Valid Until: 2024 Mar 25 1500 UTC
Warning Condition: persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

07:20 UTC

Space Weather Message Code: SUM10R
Serial Number: 788
Issue Time: 2024 Mar 25 0720 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2024 Mar 25 0643 UTC
Maximum Time: 2024 Mar 25 0643 UTC
End Time: 2024 Mar 25 0645 UTC
Duration: 2 minutes
Peak Flux: 310 sfu
Latest Penticton Noon Flux: 195 sfu



Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.

07:01 UTC

Space Weather Message Code: SUMPX2
Serial Number: 49
Issue Time: 2024 Mar 25 0701 UTC

SUMMARY: Proton Event 10MeV Integral Flux exceeded 100pfu
Begin Time: 2024 Mar 23 1405 UTC
Maximum Time: 2024 Mar 23 1820 UTC
End Time: 2024 Mar 24 1945 UTC
Maximum 10MeV Flux: 956 pfu
NOAA Scale: S2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

05:24 UTC

Space Weather Message Code: ALTK05
Serial Number: 1565
Issue Time: 2024 Mar 25 0524 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024 Mar 25 0523 UTC
Synoptic Period: 0300-0600 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

svētdiena, 2024. 24. marts

23:36 UTC

Space Weather Message Code: WARPX1
Serial Number: 553
Issue Time: 2024 Mar 24 2336 UTC

EXTENDED WARNING: Proton 10MeV Integral Flux above 10pfu expected
Extension to Serial Number: 552
Valid From: 2024 Mar 23 0617 UTC
Now Valid Until: 2024 Mar 25 1200 UTC
Warning Condition: Persistence
Predicted NOAA Scale: S1 - Minor

Comment: This is an extension of the 10 MeV > 10pfu (S1) warning condition in response to continued flux above the S1 threshold.

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

19:07 UTC

Space Weather Message Code: ALTK06
Serial Number: 552
Issue Time: 2024 Mar 24 1907 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2024 Mar 24 1903 UTC
Synoptic Period: 1800-2100 UTC

Active Warning: Yes
NOAA Scale: G2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

18:43 UTC

Space Weather Message Code: ALTK05
Serial Number: 1564
Issue Time: 2024 Mar 24 1843 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024 Mar 24 1840 UTC
Synoptic Period: 1800-2100 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

16:29 UTC

Space Weather Message Code: ALTK08
Serial Number: 30
Issue Time: 2024 Mar 24 1629 UTC

ALERT: Geomagnetic K-index of 8, 9-
Threshold Reached: 2024 Mar 24 1628 UTC
Synoptic Period: 1500-1800 UTC

Active Warning: Yes
NOAA Scale: G4 - Severe

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 45 degrees Geomagnetic Latitude.
Induced Currents - Possible widespread voltage control problems and some protective systems may mistakenly trip out key assets from the power grid. Induced pipeline currents intensify.
Spacecraft - Systems may experience surface charging; increased drag on low earth orbit satellites, and tracking and orientation problems may occur.
Navigation - Satellite navigation (GPS) degraded or inoperable for hours.
Radio - HF (high frequency) radio propagation sporadic or blacked out.
Aurora - Aurora may be seen as low as Alabama and northern California.

15:47 UTC

Space Weather Message Code: ALTK07
Serial Number: 139
Issue Time: 2024 Mar 24 1547 UTC

ALERT: Geomagnetic K-index of 7
Threshold Reached: 2024 Mar 24 1546 UTC
Synoptic Period: 1500-1800 UTC

Active Warning: Yes
NOAA Scale: G3 - Strong

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.

15:43 UTC

Space Weather Message Code: WARK07
Serial Number: 99
Issue Time: 2024 Mar 24 1543 UTC

WARNING: Geomagnetic K-index of 7 or greater expected
Valid From: 2024 Mar 24 1543 UTC
Valid To: 2024 Mar 25 0600 UTC
Warning Condition: Onset
NOAA Scale: G3 or greater

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.

15:31 UTC

Space Weather Message Code: ALTK06
Serial Number: 551
Issue Time: 2024 Mar 24 1531 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2024 Mar 24 1526 UTC
Synoptic Period: 1500-1800 UTC

Active Warning: Yes
NOAA Scale: G2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

15:17 UTC

Space Weather Message Code: ALTK05
Serial Number: 1563
Issue Time: 2024 Mar 24 1517 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024 Mar 24 1516 UTC
Synoptic Period: 1500-1800 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

15:02 UTC

Space Weather Message Code: SUMSUD
Serial Number: 267
Issue Time: 2024 Mar 24 1502 UTC

SUMMARY: Geomagnetic Sudden Impulse
Observed: 2024 Mar 24 1437 UTC
Deviation: 377 nT
Station: MEA

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

14:45 UTC

Space Weather Message Code: ALTK06
Serial Number: 550
Issue Time: 2024 Mar 24 1445 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2024 Mar 24 1444 UTC
Synoptic Period: 1200-1500 UTC

Active Warning: Yes
NOAA Scale: G2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

14:43 UTC

Space Weather Message Code: ALTK05
Serial Number: 1562
Issue Time: 2024 Mar 24 1443 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024 Mar 24 1443 UTC
Synoptic Period: 1200-1500 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

14:34 UTC

Space Weather Message Code: WARK04
Serial Number: 4571
Issue Time: 2024 Mar 24 1434 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4570
Valid From: 2024 Mar 23 0415 UTC
Now Valid Until: 2024 Mar 25 1500 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

14:34 UTC

Space Weather Message Code: WARK05
Serial Number: 1861
Issue Time: 2024 Mar 24 1434 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1860
Valid From: 2024 Mar 23 2036 UTC
Now Valid Until: 2024 Mar 25 1200 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

14:34 UTC

Space Weather Message Code: WARK06
Serial Number: 512
Issue Time: 2024 Mar 24 1434 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2024 Mar 24 1435 UTC
Valid To: 2024 Mar 25 0900 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

14:26 UTC

Space Weather Message Code: WARSUD
Serial Number: 220
Issue Time: 2024 Mar 24 1426 UTC

WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2024 Mar 24 1430 UTC
Valid To: 2024 Mar 24 1500 UTC
IP Shock Passage Observed: 2024 Mar 24 1411 UTC

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

08:55 UTC

Space Weather Message Code: WARK05
Serial Number: 1860
Issue Time: 2024 Mar 24 0855 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1859
Valid From: 2024 Mar 23 2036 UTC
Now Valid Until: 2024 Mar 24 1500 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

08:55 UTC

Space Weather Message Code: WARK04
Serial Number: 4570
Issue Time: 2024 Mar 24 0855 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4569
Valid From: 2024 Mar 23 0415 UTC
Now Valid Until: 2024 Mar 24 2100 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

03:01 UTC

Space Weather Message Code: ALTK05
Serial Number: 1561
Issue Time: 2024 Mar 24 0301 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024 Mar 24 0259 UTC
Synoptic Period: 0000-0300 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

sestdiena, 2024. 23. marts

23:22 UTC

Space Weather Message Code: ALTK06
Serial Number: 549
Issue Time: 2024 Mar 23 2322 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2024 Mar 23 2320 UTC
Synoptic Period: 2100-2400 UTC

Active Warning: Yes
NOAA Scale: G2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

22:24 UTC

Space Weather Message Code: WARK05
Serial Number: 1859
Issue Time: 2024 Mar 23 2224 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1858
Valid From: 2024 Mar 23 2036 UTC
Now Valid Until: 2024 Mar 24 0900 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

22:23 UTC

Space Weather Message Code: WARK04
Serial Number: 4569
Issue Time: 2024 Mar 23 2223 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4568
Valid From: 2024 Mar 23 0415 UTC
Now Valid Until: 2024 Mar 24 1200 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

22:20 UTC

Space Weather Message Code: WARK06
Serial Number: 511
Issue Time: 2024 Mar 23 2220 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2024 Mar 23 2219 UTC
Valid To: 2024 Mar 24 0600 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

21:44 UTC

Space Weather Message Code: ALTK05
Serial Number: 1560
Issue Time: 2024 Mar 23 2144 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024 Mar 23 2144 UTC
Synoptic Period: 2100-2400 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

20:56 UTC

Space Weather Message Code: ALTK05
Serial Number: 1559
Issue Time: 2024 Mar 23 2056 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024 Mar 23 2055 UTC
Synoptic Period: 1800-2100 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

20:43 UTC

Space Weather Message Code: WARPX1
Serial Number: 552
Issue Time: 2024 Mar 23 2043 UTC

EXTENDED WARNING: Proton 10MeV Integral Flux above 10pfu expected
Extension to Serial Number: 551
Valid From: 2024 Mar 23 0617 UTC
Now Valid Until: 2024 Mar 24 2359 UTC
Warning Condition: Persistence
Predicted NOAA Scale: S2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

20:37 UTC

Space Weather Message Code: WARK05
Serial Number: 1858
Issue Time: 2024 Mar 23 2037 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2024 Mar 23 2036 UTC
Valid To: 2024 Mar 24 0600 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

18:40 UTC

Space Weather Message Code: WATA50
Serial Number: 74
Issue Time: 2024 Mar 23 1840 UTC

WATCH: Geomagnetic Storm Category G3 Predicted

Highest Storm Level Predicted by Day:
Mar 24: G2 (Moderate) Mar 25: G3 (Strong) Mar 26: G1 (Minor)

THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.

17:54 UTC

Space Weather Message Code: WARK04
Serial Number: 4568
Issue Time: 2024 Mar 23 1754 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4567
Valid From: 2024 Mar 23 0415 UTC
Now Valid Until: 2024 Mar 24 0600 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

15:14 UTC

Space Weather Message Code: SUMXM5
Serial Number: 209
Issue Time: 2024 Mar 23 1514 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2024 Mar 23 1351 UTC
Maximum Time: 2024 Mar 23 1402 UTC
End Time: 2024 Mar 23 1415 UTC
X-ray Class: M5.3
Optical Class: sf
Location: N21W02
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

14:30 UTC

Space Weather Message Code: ALTPX2
Serial Number: 70
Issue Time: 2024 Mar 23 1430 UTC

ALERT: Proton Event 10MeV Integral Flux exceeded 100pfu
Begin Time: 2024 Mar 23 1405 UTC
NOAA Scale: S2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Radiation - Passengers and crew in high latitude, high altitude flights may experience small, increased radiation exposures.
Spacecraft - Infrequent single-event upsets to satellites are possible.
Radio - Small effects on polar HF (high frequency) propagation resulting in fades at lower frequencies.

13:54 UTC

Space Weather Message Code: ALTXMF
Serial Number: 350
Issue Time: 2024 Mar 23 1354 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2024 Mar 23 1352 UTC
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

11:55 UTC

Space Weather Message Code: WARK04
Serial Number: 4567
Issue Time: 2024 Mar 23 1155 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4566
Valid From: 2024 Mar 23 0415 UTC
Now Valid Until: 2024 Mar 23 1800 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

09:04 UTC

Space Weather Message Code: ALTK05
Serial Number: 1558
Issue Time: 2024 Mar 23 0904 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024 Mar 23 0859 UTC
Synoptic Period: 0600-0900 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

08:33 UTC

Space Weather Message Code: ALTPX1
Serial Number: 345
Issue Time: 2024 Mar 23 0833 UTC

ALERT: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2024 Mar 23 0815 UTC
NOAA Scale: S1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

06:17 UTC

Space Weather Message Code: WARPX1
Serial Number: 551
Issue Time: 2024 Mar 23 0617 UTC

WARNING: Proton 10MeV Integral Flux above 10pfu expected
Valid From: 2024 Mar 23 0617 UTC
Valid To: 2024 Mar 23 2100 UTC
Warning Condition: Onset
Predicted NOAA Scale: S1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

05:37 UTC

Space Weather Message Code: ALTK05
Serial Number: 1557
Issue Time: 2024 Mar 23 0537 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024 Mar 23 0536 UTC
Synoptic Period: 0300-0600 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

05:23 UTC

Space Weather Message Code: WARK05
Serial Number: 1857
Issue Time: 2024 Mar 23 0523 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2024 Mar 23 0523 UTC
Valid To: 2024 Mar 23 1200 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

05:12 UTC

Space Weather Message Code: ALTK04
Serial Number: 2434
Issue Time: 2024 Mar 23 0512 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2024 Mar 23 0512 UTC
Synoptic Period: 0300-0600 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

04:14 UTC

Space Weather Message Code: WARK04
Serial Number: 4566
Issue Time: 2024 Mar 23 0414 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 Mar 23 0415 UTC
Valid To: 2024 Mar 23 1200 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

02:33 UTC

Space Weather Message Code: SUM10R
Serial Number: 787
Issue Time: 2024 Mar 23 0233 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2024 Mar 23 0107 UTC
Maximum Time: 2024 Mar 23 0117 UTC
End Time: 2024 Mar 23 0213 UTC
Duration: 66 minutes
Peak Flux: 240 sfu
Latest Penticton Noon Flux: 198 sfu



Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.

02:31 UTC

Space Weather Message Code: SUMX01
Serial Number: 140
Issue Time: 2024 Mar 23 0231 UTC

SUMMARY: X-ray Event exceeded X1
Begin Time: 2024 Mar 23 0058 UTC
Maximum Time: 2024 Mar 23 0133 UTC
End Time: 2024 Mar 23 0222 UTC
X-ray Class: X1.1
Location: N17E03
NOAA Scale: R3 - Strong

Comment: Location is difficult to ascertain with certainty because both Region 3614 and Region 3615 (S13E10) erupted with nearly similar intensity.

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.
Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.

02:02 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1283
Issue Time: 2024 Mar 23 0202 UTC

ALERT: Type II Radio Emission
Begin Time: 2024 Mar 23 0109 UTC
Estimated Velocity: 791 km/s



Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.

01:19 UTC

Space Weather Message Code: ALTXMF
Serial Number: 349
Issue Time: 2024 Mar 23 0119 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2024 Mar 23 0116 UTC
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

piektdiena, 2024. 22. marts

20:13 UTC

Space Weather Message Code: WATA20
Serial Number: 992
Issue Time: 2024 Mar 22 2013 UTC

WATCH: Geomagnetic Storm Category G1 Predicted

Highest Storm Level Predicted by Day:
Mar 23: None (Below G1) Mar 24: None (Below G1) Mar 25: G1 (Minor)

THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

11:55 UTC

Space Weather Message Code: WARK04
Serial Number: 4565
Issue Time: 2024 Mar 22 1155 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4564
Valid From: 2024 Mar 21 0304 UTC
Now Valid Until: 2024 Mar 22 1500 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

08:55 UTC

Space Weather Message Code: WARK04
Serial Number: 4564
Issue Time: 2024 Mar 22 0855 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4563
Valid From: 2024 Mar 21 0304 UTC
Now Valid Until: 2024 Mar 22 1200 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

ceturtdiena, 2024. 21. marts

21:02 UTC

Space Weather Message Code: ALTK05
Serial Number: 1556
Issue Time: 2024 Mar 21 2102 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024 Mar 21 2059 UTC
Synoptic Period: 1800-2100 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

20:39 UTC

Space Weather Message Code: WARK05
Serial Number: 1856
Issue Time: 2024 Mar 21 2039 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1855
Valid From: 2024 Mar 21 1342 UTC
Now Valid Until: 2024 Mar 22 0600 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

20:28 UTC

Space Weather Message Code: WARK04
Serial Number: 4563
Issue Time: 2024 Mar 21 2028 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4562
Valid From: 2024 Mar 21 0304 UTC
Now Valid Until: 2024 Mar 22 0900 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

18:03 UTC

Space Weather Message Code: ALTK05
Serial Number: 1555
Issue Time: 2024 Mar 21 1803 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024 Mar 21 1753 UTC
Synoptic Period: 1800-2100 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

14:42 UTC

Space Weather Message Code: ALTK05
Serial Number: 1554
Issue Time: 2024 Mar 21 1442 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024 Mar 21 1441 UTC
Synoptic Period: 1200-1500 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

13:42 UTC

Space Weather Message Code: WARK05
Serial Number: 1855
Issue Time: 2024 Mar 21 1342 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2024 Mar 21 1342 UTC
Valid To: 2024 Mar 21 2100 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

13:40 UTC

Space Weather Message Code: ALTK04
Serial Number: 2433
Issue Time: 2024 Mar 21 1340 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2024 Mar 21 1338 UTC
Synoptic Period: 1200-1500 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

11:28 UTC

Space Weather Message Code: WARK04
Serial Number: 4562
Issue Time: 2024 Mar 21 1128 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4561
Valid From: 2024 Mar 21 0304 UTC
Now Valid Until: 2024 Mar 21 2100 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

03:04 UTC

Space Weather Message Code: WARK04
Serial Number: 4561
Issue Time: 2024 Mar 21 0304 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 Mar 21 0304 UTC
Valid To: 2024 Mar 21 1200 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

trešdiena, 2024. 20. marts

07:52 UTC

Space Weather Message Code: SUMXM5
Serial Number: 208
Issue Time: 2024 Mar 20 0752 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2024 Mar 20 0723 UTC
Maximum Time: 2024 Mar 20 0736 UTC
End Time: 2024 Mar 20 0747 UTC
X-ray Class: M7.4
Optical Class: 2b
Location: S12E49
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

07:35 UTC

Space Weather Message Code: ALTXMF
Serial Number: 348
Issue Time: 2024 Mar 20 0735 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2024 Mar 20 0733 UTC
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

pirmdiena, 2024. 18. marts

19:42 UTC

Space Weather Message Code: SUMXM5
Serial Number: 207
Issue Time: 2024 Mar 18 1942 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2024 Mar 18 1902 UTC
Maximum Time: 2024 Mar 18 1919 UTC
End Time: 2024 Mar 18 1928 UTC
X-ray Class: M6.7
Location: S12E62
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

19:18 UTC

Space Weather Message Code: ALTXMF
Serial Number: 347
Issue Time: 2024 Mar 18 1918 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2024 Mar 18 1916 UTC
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

10:11 UTC

Space Weather Message Code: WATA20
Serial Number: 991
Issue Time: 2024 Mar 18 1011 UTC

WATCH: Geomagnetic Storm Category G1 Predicted

Highest Storm Level Predicted by Day:
Mar 19: None (Below G1) Mar 20: G1 (Minor) Mar 21: G1 (Minor)

THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

sestdiena, 2024. 16. marts

20:20 UTC

Space Weather Message Code: WARPX1
Serial Number: 550
Issue Time: 2024 Mar 16 2020 UTC

CANCEL WARNING: Proton 10MeV Integral Flux above 10pfu expected
Cancel Serial Number: 549
Original Issue Time: 2024 Mar 15 1544 UTC

Comment: The 10 MeV proton flux has decreased below event thresholds.

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

20:20 UTC

Space Weather Message Code: SUMPX1
Serial Number: 109
Issue Time: 2024 Mar 16 2020 UTC

SUMMARY: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2024 Mar 15 2050 UTC
Maximum Time: 2024 Mar 16 0635 UTC
End Time: 2024 Mar 16 1505 UTC
Maximum 10MeV Flux: 16 pfu
NOAA Scale: S1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

05:55 UTC

Space Weather Message Code: WARPX1
Serial Number: 549
Issue Time: 2024 Mar 16 0555 UTC

EXTENDED WARNING: Proton 10MeV Integral Flux above 10pfu expected
Extension to Serial Number: 548
Valid From: 2024 Mar 15 1545 UTC
Now Valid Until: 2024 Mar 16 2359 UTC
Warning Condition: Persistence
Predicted NOAA Scale: S1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

piektdiena, 2024. 15. marts

21:06 UTC

Space Weather Message Code: ALTPX1
Serial Number: 344
Issue Time: 2024 Mar 15 2106 UTC

ALERT: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2024 Mar 15 2050 UTC
NOAA Scale: S1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

15:44 UTC

Space Weather Message Code: WARPX1
Serial Number: 548
Issue Time: 2024 Mar 15 1544 UTC

WARNING: Proton 10MeV Integral Flux above 10pfu expected
Valid From: 2024 Mar 15 1545 UTC
Valid To: 2024 Mar 16 0600 UTC
Warning Condition: Onset
Predicted NOAA Scale: S1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

03:01 UTC

Space Weather Message Code: ALTK04
Serial Number: 2432
Issue Time: 2024 Mar 15 0301 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2024 Mar 15 0259 UTC
Synoptic Period: 0000-0300 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

00:55 UTC

Space Weather Message Code: WARK04
Serial Number: 4560
Issue Time: 2024 Mar 15 0055 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 Mar 15 0055 UTC
Valid To: 2024 Mar 15 1200 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

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