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.

mercredi 19 février 2020

08:43 UTC

Space Weather Message Code: WARK04
Serial Number: 3712
Issue Time: 2020 Feb 19 0843 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3711
Valid From: 2020 Feb 18 1305 UTC
Now Valid Until: 2020 Feb 19 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.

06:00 UTC

Space Weather Message Code: WARK05
Serial Number: 1549
Issue Time: 2020 Feb 19 0600 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1548
Valid From: 2020 Feb 18 1400 UTC
Now Valid Until: 2020 Feb 19 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.

06:00 UTC

Space Weather Message Code: ALTK05
Serial Number: 1292
Issue Time: 2020 Feb 19 0600 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2020 Feb 19 0559 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.

03:59 UTC

Space Weather Message Code: ALTK04
Serial Number: 2148
Issue Time: 2020 Feb 19 0359 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2020 Feb 19 0358 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.

mardi 18 février 2020

18:15 UTC

Space Weather Message Code: WARK05
Serial Number: 1548
Issue Time: 2020 Feb 18 1815 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1547
Valid From: 2020 Feb 18 1400 UTC
Now Valid Until: 2020 Feb 19 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 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.

18:14 UTC

Space Weather Message Code: WARK04
Serial Number: 3711
Issue Time: 2020 Feb 18 1814 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3710
Valid From: 2020 Feb 18 1305 UTC
Now Valid Until: 2020 Feb 19 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.

18:09 UTC

Space Weather Message Code: WATA20
Serial Number: 867
Issue Time: 2020 Feb 18 1809 UTC

WATCH: Geomagnetic Storm Category G1 Predicted

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

13:37 UTC

Space Weather Message Code: WARK05
Serial Number: 1547
Issue Time: 2020 Feb 18 1337 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2020 Feb 18 1400 UTC
Valid To: 2020 Feb 18 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.

13:06 UTC

Space Weather Message Code: WARK04
Serial Number: 3710
Issue Time: 2020 Feb 18 1306 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2020 Feb 18 1305 UTC
Valid To: 2020 Feb 18 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.

07:30 UTC

Space Weather Message Code: ALTK04
Serial Number: 2147
Issue Time: 2020 Feb 18 0730 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2020 Feb 18 0729 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.

06:52 UTC

Space Weather Message Code: WARK04
Serial Number: 3709
Issue Time: 2020 Feb 18 0652 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2020 Feb 18 0651 UTC
Valid To: 2020 Feb 18 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.

mardi 11 février 2020

13:33 UTC

Space Weather Message Code: ALTEF3
Serial Number: 3020
Issue Time: 2020 Feb 11 1333 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3019
Begin Time: 2020 Feb 08 1335 UTC
Yesterday Maximum 2MeV Flux: 6022 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 10 février 2020

10:36 UTC

Space Weather Message Code: ALTEF3
Serial Number: 3019
Issue Time: 2020 Feb 10 1036 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3018
Begin Time: 2020 Feb 08 1335 UTC
Yesterday Maximum 2MeV Flux: 3816 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 09 février 2020

12:21 UTC

Space Weather Message Code: ALTEF3
Serial Number: 3018
Issue Time: 2020 Feb 09 1221 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 3017
Begin Time: 2020 Feb 08 1335 UTC
Yesterday Maximum 2MeV Flux: 4380 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 08 février 2020

14:00 UTC

Space Weather Message Code: ALTEF3
Serial Number: 3017
Issue Time: 2020 Feb 08 1400 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2020 Feb 08 1335 UTC
Station: GOES16


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.

00:01 UTC

Space Weather Message Code: ALTK04
Serial Number: 2146
Issue Time: 2020 Feb 08 0001 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2020 Feb 07 2359 UTC
Synoptic Period: 2100-2400 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.

vendredi 07 février 2020

23:12 UTC

Space Weather Message Code: WARK04
Serial Number: 3708
Issue Time: 2020 Feb 07 2312 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2020 Feb 07 2315 UTC
Valid To: 2020 Feb 08 0900 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.

02:52 UTC

Space Weather Message Code: WARK04
Serial Number: 3707
Issue Time: 2020 Feb 07 0252 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3706
Valid From: 2020 Feb 06 2019 UTC
Now Valid Until: 2020 Feb 07 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.

jeudi 06 février 2020

20:30 UTC

Space Weather Message Code: WARK05
Serial Number: 1546
Issue Time: 2020 Feb 06 2030 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2020 Feb 06 2030 UTC
Valid To: 2020 Feb 06 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.

20:21 UTC

Space Weather Message Code: ALTK04
Serial Number: 2145
Issue Time: 2020 Feb 06 2021 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2020 Feb 06 2021 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.

20:19 UTC

Space Weather Message Code: WARK04
Serial Number: 3706
Issue Time: 2020 Feb 06 2019 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2020 Feb 06 2019 UTC
Valid To: 2020 Feb 07 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.

07:24 UTC

Space Weather Message Code: ALTK04
Serial Number: 2144
Issue Time: 2020 Feb 06 0724 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2020 Feb 06 0723 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.

06:51 UTC

Space Weather Message Code: WARK04
Serial Number: 3705
Issue Time: 2020 Feb 06 0651 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2020 Feb 06 0650 UTC
Valid To: 2020 Feb 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.

vendredi 31 janvier 2020

05:02 UTC

Space Weather Message Code: WARK04
Serial Number: 3704
Issue Time: 2020 Jan 31 0502 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3703
Valid From: 2020 Jan 30 1650 UTC
Now Valid Until: 2020 Jan 31 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.

04:59 UTC

Space Weather Message Code: ALTK04
Serial Number: 2143
Issue Time: 2020 Jan 31 0459 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2020 Jan 31 0459 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.

02:53 UTC

Space Weather Message Code: WARK04
Serial Number: 3703
Issue Time: 2020 Jan 31 0253 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3702
Valid From: 2020 Jan 30 1650 UTC
Now Valid Until: 2020 Jan 31 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.

jeudi 30 janvier 2020

23:36 UTC

Space Weather Message Code: WARK04
Serial Number: 3703
Issue Time: 2020 Jan 30 2336 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3702
Valid From: 2020 Jan 30 1650 UTC
Now Valid Until: 2020 Jan 31 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.

20:56 UTC

Space Weather Message Code: WARK04
Serial Number: 3702
Issue Time: 2020 Jan 30 2056 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3701
Valid From: 2020 Jan 30 1650 UTC
Now Valid Until: 2020 Jan 30 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.

18:11 UTC

Space Weather Message Code: ALTK04
Serial Number: 2142
Issue Time: 2020 Jan 30 1811 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2020 Jan 30 1759 UTC
Synoptic Period: 1500-1800 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.

16:49 UTC

Space Weather Message Code: WARK04
Serial Number: 3701
Issue Time: 2020 Jan 30 1649 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2020 Jan 30 1650 UTC
Valid To: 2020 Jan 30 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.

mercredi 29 janvier 2020

02:34 UTC

Space Weather Message Code: WARK04
Serial Number: 3700
Issue Time: 2020 Jan 29 0234 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2020 Jan 29 0233 UTC
Valid To: 2020 Jan 29 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.

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