Space Weather Alerts

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K04W 2023-09-14 01:01:47.873

  • Issued: Thu, 14 Sep 2023 01:01:47 +0000
  • Space Weather Message Code: WARK04
    Serial Number: 4448
    Issue Time: 2023 Sep 14 0101 UTC
    
    WARNING: Geomagnetic K-index of 4 expected
    Valid From: 2023 Sep 14 0101 UTC
    Valid To: 2023 Sep 14 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.                                

K05A 2023-09-13 02:07:37.360

  • Issued: Wed, 13 Sep 2023 02:07:37 +0000
  • Space Weather Message Code: ALTK05
    Serial Number: 1496
    Issue Time: 2023 Sep 13 0207 UTC
    
    ALERT: Geomagnetic K-index of 5
    Threshold Reached: 2023 Sep 13 0206 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.                                

K04W 2023-09-13 02:01:58.850

  • Issued: Wed, 13 Sep 2023 02:01:58 +0000
  • Space Weather Message Code: WARK04
    Serial Number: 4447
    Issue Time: 2023 Sep 13 0201 UTC
    
    EXTENDED WARNING: Geomagnetic K-index of 4 expected
    Extension to Serial Number: 4446
    Valid From: 2023 Sep 12 1140 UTC
    Now Valid Until: 2023 Sep 13 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.                                

K05W 2023-09-13 02:01:02.430

  • Issued: Wed, 13 Sep 2023 02:01:02 +0000
  • Space Weather Message Code: WARK05
    Serial Number: 1805
    Issue Time: 2023 Sep 13 0201 UTC
    
    WARNING: Geomagnetic K-index of 5 expected
    Valid From: 2023 Sep 13 0200 UTC
    Valid To: 2023 Sep 13 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.                                

A20F 2023-09-12 21:02:04.017

  • Issued: Tue, 12 Sep 2023 21:02:04 +0000
  • Space Weather Message Code: WATA20
    Serial Number: 965
    Issue Time: 2023 Sep 12 2102 UTC
    
    WATCH: Geomagnetic Storm Category G1 Predicted
    
    Highest Storm Level Predicted by Day:
    Sep 13:  G1 (Minor)   Sep 14:  None (Below G1)   Sep 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.                                

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