NOAA SWPC Alertes, surveillances et avertissements

Le Centre de prévision National Oceanic and Atmospheric Administration Space Weather (NOAA SWPC) est l'organisme gouvernemental de la météorologie spatiale officielle des États-Unis qui fournit des alertes pour les perturbations de la météo spatiale. Ci-dessous vous trouverez les dernières alertes météorologiques de l'espace émis par la NOAA SWPC.

dimanche 21 juillet 2019

23:08 UTC

Space Weather Message Code: WARK04
Serial Number: 3645
Issue Time: 2019 Jul 21 2308 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2019 Jul 21 2307 UTC
Valid To: 2019 Jul 22 0300 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.

15:46 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2960
Issue Time: 2019 Jul 21 1546 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2959
Begin Time: 2019 Jul 10 1230 UTC
Yesterday Maximum 2MeV Flux: 1870 pfu

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

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

samedi 20 juillet 2019

11:58 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2959
Issue Time: 2019 Jul 20 1158 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2958
Begin Time: 2019 Jul 10 1230 UTC
Yesterday Maximum 2MeV Flux: 1849 pfu

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

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

vendredi 19 juillet 2019

11:41 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2958
Issue Time: 2019 Jul 19 1141 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2957
Begin Time: 2019 Jul 10 1230 UTC
Yesterday Maximum 2MeV Flux: 1942 pfu

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

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

jeudi 18 juillet 2019

12:19 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2957
Issue Time: 2019 Jul 18 1219 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2956
Begin Time: 2019 Jul 10 1230 UTC
Yesterday Maximum 2MeV Flux: 1690 pfu

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

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

mercredi 17 juillet 2019

14:11 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2956
Issue Time: 2019 Jul 17 1411 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2955
Begin Time: 2019 Jul 10 1230 UTC
Yesterday Maximum 2MeV Flux: 2864 pfu

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

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

mardi 16 juillet 2019

13:16 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2955
Issue Time: 2019 Jul 16 1316 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2954
Begin Time: 2019 Jul 10 1230 UTC
Yesterday Maximum 2MeV Flux: 2812 pfu

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

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

lundi 15 juillet 2019

13:40 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2954
Issue Time: 2019 Jul 15 1340 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2953
Begin Time: 2019 Jul 10 1230 UTC
Yesterday Maximum 2MeV Flux: 4234 pfu

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

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

dimanche 14 juillet 2019

11:06 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2953
Issue Time: 2019 Jul 14 1106 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2952
Begin Time: 2019 Jul 10 1230 UTC
Yesterday Maximum 2MeV Flux: 4714 pfu

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

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

samedi 13 juillet 2019

10:46 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2952
Issue Time: 2019 Jul 13 1046 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2951
Begin Time: 2019 Jul 10 1230 UTC
Yesterday Maximum 2MeV Flux: 6623 pfu

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

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

vendredi 12 juillet 2019

10:41 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2951
Issue Time: 2019 Jul 12 1041 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2950
Begin Time: 2019 Jul 10 1230 UTC
Yesterday Maximum 2MeV Flux: 5921 pfu

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

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

jeudi 11 juillet 2019

09:41 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2950
Issue Time: 2019 Jul 11 0941 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2949
Begin Time: 2019 Jul 10 1230 UTC
Yesterday Maximum 2MeV Flux: 8155 pfu

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

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

08:28 UTC

Space Weather Message Code: WARK04
Serial Number: 3644
Issue Time: 2019 Jul 11 0828 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2019 Jul 11 0830 UTC
Valid To: 2019 Jul 11 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.

mercredi 10 juillet 2019

12:39 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2949
Issue Time: 2019 Jul 10 1239 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2019 Jul 10 1230 UTC
Station: GOES


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

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

11:32 UTC

Space Weather Message Code: WARK04
Serial Number: 3643
Issue Time: 2019 Jul 10 1132 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3642
Valid From: 2019 Jul 09 1830 UTC
Now Valid Until: 2019 Jul 10 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.

07:27 UTC

Space Weather Message Code: ALTK05
Serial Number: 1267
Issue Time: 2019 Jul 10 0727 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2019 Jul 10 0726 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.

05:22 UTC

Space Weather Message Code: WARK05
Serial Number: 1525
Issue Time: 2019 Jul 10 0522 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2019 Jul 10 0521 UTC
Valid To: 2019 Jul 10 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.

02:54 UTC

Space Weather Message Code: WARK04
Serial Number: 3642
Issue Time: 2019 Jul 10 0254 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3641
Valid From: 2019 Jul 09 1830 UTC
Now Valid Until: 2019 Jul 10 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.

mardi 09 juillet 2019

20:29 UTC

Space Weather Message Code: ALTK05
Serial Number: 1266
Issue Time: 2019 Jul 09 2029 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2019 Jul 09 2028 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.

20:20 UTC

Space Weather Message Code: WARK05
Serial Number: 1524
Issue Time: 2019 Jul 09 2020 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2019 Jul 09 2020 UTC
Valid To: 2019 Jul 09 2359 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.

20:09 UTC

Space Weather Message Code: ALTK04
Serial Number: 2118
Issue Time: 2019 Jul 09 2009 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2019 Jul 09 2008 UTC
Synoptic Period: 1800-2100 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.

18:28 UTC

Space Weather Message Code: WARK04
Serial Number: 3641
Issue Time: 2019 Jul 09 1828 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2019 Jul 09 1830 UTC
Valid To: 2019 Jul 10 0300 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.

lundi 08 juillet 2019

23:49 UTC

Space Weather Message Code: WARK04
Serial Number: 3640
Issue Time: 2019 Jul 08 2349 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3639
Valid From: 2019 Jul 08 1953 UTC
Now Valid Until: 2019 Jul 09 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.

23:40 UTC

Space Weather Message Code: WARK05
Serial Number: 1523
Issue Time: 2019 Jul 08 2340 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2019 Jul 08 2339 UTC
Valid To: 2019 Jul 09 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.

21:18 UTC

Space Weather Message Code: ALTK04
Serial Number: 2117
Issue Time: 2019 Jul 08 2118 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2019 Jul 08 2059 UTC
Synoptic Period: 1800-2100 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.

19:53 UTC

Space Weather Message Code: WARK04
Serial Number: 3639
Issue Time: 2019 Jul 08 1953 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2019 Jul 08 1953 UTC
Valid To: 2019 Jul 08 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.

07:19 UTC

Space Weather Message Code: SUM10R
Serial Number: 706
Issue Time: 2019 Jul 08 0719 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2019 Jul 08 0603 UTC
Maximum Time: 2019 Jul 08 0603 UTC
End Time: 2019 Jul 08 0605 UTC
Duration: 2 minutes
Peak Flux: 75 sfu
Latest Penticton Noon Flux: 67 sfu

Comment: Reported by Learmonth. San Vito was experiencing RFI.

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

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.

lundi 01 juillet 2019

05:14 UTC

Space Weather Message Code: WARK04
Serial Number: 3638
Issue Time: 2019 Jul 01 0514 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2019 Jul 01 0511 UTC
Valid To: 2019 Jul 01 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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