Space Weather Alerts

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K05W 2025-02-28 05:54:50.277

  • Issued: Fri, 28 Feb 2025 05:54:50 +0000
  • Space Weather Message Code: WARK05
    Serial Number: 1982
    Issue Time: 2025 Feb 28 0554 UTC
    
    EXTENDED WARNING: Geomagnetic K-index of 5 expected
    Extension to Serial Number: 1981
    Valid From: 2025 Feb 27 1052 UTC
    Now Valid Until: 2025 Feb 28 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.                                

K05W 2025-02-27 23:56:11.577

  • Issued: Thu, 27 Feb 2025 23:56:11 +0000
  • Space Weather Message Code: WARK05
    Serial Number: 1981
    Issue Time: 2025 Feb 27 2356 UTC
    
    EXTENDED WARNING: Geomagnetic K-index of 5 expected
    Extension to Serial Number: 1980
    Valid From: 2025 Feb 27 1052 UTC
    Now Valid Until: 2025 Feb 28 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.                                

K05A 2025-02-27 18:02:43.890

  • Issued: Thu, 27 Feb 2025 18:02:43 +0000
  • Space Weather Message Code: ALTK05
    Serial Number: 1701
    Issue Time: 2025 Feb 27 1802 UTC
    
    ALERT: Geomagnetic K-index of 5
     Threshold Reached: 2025 Feb 27 1759 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.                                

K04W 2025-02-27 17:42:08.320

  • Issued: Thu, 27 Feb 2025 17:42:08 +0000
  • Space Weather Message Code: WARK04
    Serial Number: 4854
    Issue Time: 2025 Feb 27 1742 UTC
    
    EXTENDED WARNING: Geomagnetic K-index of 4 expected
    Extension to Serial Number: 4853
    Valid From: 2025 Feb 27 0101 UTC
    Now Valid Until: 2025 Feb 28 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 2025-02-27 17:38:41.490

  • Issued: Thu, 27 Feb 2025 17:38:41 +0000
  • Space Weather Message Code: WARK05
    Serial Number: 1980
    Issue Time: 2025 Feb 27 1738 UTC
    
    EXTENDED WARNING: Geomagnetic K-index of 5 expected
    Extension to Serial Number: 1979
    Valid From: 2025 Feb 27 1052 UTC
    Now Valid Until: 2025 Feb 27 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 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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