NOAA SWPC Alertes

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.

mardi 23 avril 2019

20:37 UTC

Space Weather Message Code: WARK04
Serial Number: 3621
Issue Time: 2019 Apr 23 2037 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2019 Apr 23 2040 UTC
Valid To: 2019 Apr 24 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.

lundi 22 avril 2019

04:24 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1073
Issue Time: 2019 Apr 22 0424 UTC

ALERT: Type II Radio Emission
Begin Time: 2019 Apr 22 0255 UTC
Estimated Velocity: 428 km/s

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

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.

dimanche 21 avril 2019

05:33 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1072
Issue Time: 2019 Apr 21 0533 UTC

ALERT: Type II Radio Emission
Begin Time: 2019 Apr 21 0444 UTC
Estimated Velocity: 1341 km/s

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

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.

lundi 15 avril 2019

17:34 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2934
Issue Time: 2019 Apr 15 1734 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2933
Begin Time: 2019 Apr 11 1450 UTC
Yesterday Maximum 2MeV Flux: 4294 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 avril 2019

09:00 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2933
Issue Time: 2019 Apr 14 0900 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2932
Begin Time: 2019 Apr 11 1450 UTC
Yesterday Maximum 2MeV Flux: 4637 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 avril 2019

11:06 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2932
Issue Time: 2019 Apr 13 1106 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2931
Begin Time: 2019 Apr 11 1450 UTC
Yesterday Maximum 2MeV Flux: 2838 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.

00:52 UTC

Space Weather Message Code: WARK04
Serial Number: 3620
Issue Time: 2019 Apr 13 0052 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2019 Apr 13 0051 UTC
Valid To: 2019 Apr 13 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 12 avril 2019

14:40 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2931
Issue Time: 2019 Apr 12 1440 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2930
Begin Time: 2019 Apr 11 1450 UTC
Yesterday Maximum 2MeV Flux: 2775 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 avril 2019

15:06 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2930
Issue Time: 2019 Apr 11 1506 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2019 Apr 11 1450 UTC
Station: GOES15


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 10 avril 2019

18:04 UTC

Space Weather Message Code: WARK04
Serial Number: 3619
Issue Time: 2019 Apr 10 1804 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2019 Apr 10 1800 UTC
Valid To: 2019 Apr 11 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.

03:02 UTC

Space Weather Message Code: ALTK04
Serial Number: 2110
Issue Time: 2019 Apr 10 0302 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2019 Apr 10 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.

02:33 UTC

Space Weather Message Code: WARK04
Serial Number: 3618
Issue Time: 2019 Apr 10 0233 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2019 Apr 10 0234 UTC
Valid To: 2019 Apr 10 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.

mardi 09 avril 2019

09:05 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2929
Issue Time: 2019 Apr 09 0905 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2928
Begin Time: 2019 Apr 05 1400 UTC
Yesterday Maximum 2MeV Flux: 2155 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.

02:45 UTC

Space Weather Message Code: ALTK04
Serial Number: 2109
Issue Time: 2019 Apr 09 0245 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2019 Apr 09 0240 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.

02:34 UTC

Space Weather Message Code: WARK04
Serial Number: 3617
Issue Time: 2019 Apr 09 0234 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2019 Apr 09 0234 UTC
Valid To: 2019 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.

lundi 08 avril 2019

16:06 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2928
Issue Time: 2019 Apr 08 1606 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2927
Begin Time: 2019 Apr 05 1400 UTC
Yesterday Maximum 2MeV Flux: 23079 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.

13:51 UTC

Space Weather Message Code: WARK04
Serial Number: 3616
Issue Time: 2019 Apr 08 1351 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2019 Apr 08 1350 UTC
Valid To: 2019 Apr 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.

07:20 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1071
Issue Time: 2019 Apr 08 0720 UTC

ALERT: Type II Radio Emission
Begin Time: 2019 Apr 08 0437 UTC
Estimated Velocity: 359 km/s

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

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.

06:00 UTC

Space Weather Message Code: ALTK04
Serial Number: 2108
Issue Time: 2019 Apr 08 0600 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2019 Apr 08 0559 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.

04:38 UTC

Space Weather Message Code: WARK04
Serial Number: 3615
Issue Time: 2019 Apr 08 0438 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2019 Apr 08 0440 UTC
Valid To: 2019 Apr 08 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.

dimanche 07 avril 2019

09:00 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2927
Issue Time: 2019 Apr 07 0900 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2926
Begin Time: 2019 Apr 05 1400 UTC
Yesterday Maximum 2MeV Flux: 14870 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 06 avril 2019

09:01 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2926
Issue Time: 2019 Apr 06 0901 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2925
Begin Time: 2019 Apr 05 1400 UTC
Yesterday Maximum 2MeV Flux: 8560 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 05 avril 2019

14:32 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2925
Issue Time: 2019 Apr 05 1432 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2019 Apr 05 1400 UTC
Station: GOES-15


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.

03:54 UTC

Space Weather Message Code: WARK04
Serial Number: 3614
Issue Time: 2019 Apr 05 0354 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2019 Apr 05 0355 UTC
Valid To: 2019 Apr 05 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.

jeudi 04 avril 2019

16:55 UTC

Space Weather Message Code: WARK04
Serial Number: 3613
Issue Time: 2019 Apr 04 1655 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2019 Apr 04 1655 UTC
Valid To: 2019 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.

mercredi 03 avril 2019

06:01 UTC

Space Weather Message Code: ALTK04
Serial Number: 2107
Issue Time: 2019 Apr 03 0601 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2019 Apr 03 0559 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.

04:00 UTC

Space Weather Message Code: WARK04
Serial Number: 3612
Issue Time: 2019 Apr 03 0400 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2019 Apr 03 0400 UTC
Valid To: 2019 Apr 03 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.

lundi 01 avril 2019

12:02 UTC

Space Weather Message Code: ALTK04
Serial Number: 2106
Issue Time: 2019 Apr 01 1202 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2019 Apr 01 1159 UTC
Synoptic Period: 0900-1200 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.

11:05 UTC

Space Weather Message Code: WARK04
Serial Number: 3611
Issue Time: 2019 Apr 01 1105 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2019 Apr 01 1104 UTC
Valid To: 2019 Apr 01 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.

dimanche 31 mars 2019

06:00 UTC

Space Weather Message Code: ALTK04
Serial Number: 2105
Issue Time: 2019 Mar 31 0600 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2019 Mar 31 0559 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.

03:29 UTC

Space Weather Message Code: WARK04
Serial Number: 3610
Issue Time: 2019 Mar 31 0329 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2019 Mar 31 0330 UTC
Valid To: 2019 Mar 31 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.

jeudi 28 mars 2019

06:26 UTC

Space Weather Message Code: WARK04
Serial Number: 3609
Issue Time: 2019 Mar 28 0626 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2019 Mar 28 0630 UTC
Valid To: 2019 Mar 28 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.

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