Space Weather Alerts

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A20F 2024-12-23 20:58:04.700

  • Issued: Mon, 23 Dec 2024 20:58:04 +0000
  • Space Weather Message Code: WATA20
    Serial Number: 1020
    Issue Time: 2024 Dec 23 2058 UTC
    
    WATCH: Geomagnetic Storm Category G1 Predicted
    
    Highest Storm Level Predicted by Day:
    Dec 24:  None (Below G1)   Dec 25:  G1 (Minor)   Dec 26:  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.                                

K04W 2024-12-23 17:23:07.367

  • Issued: Mon, 23 Dec 2024 17:23:07 +0000
  • Space Weather Message Code: WARK04
    Serial Number: 4784
    Issue Time: 2024 Dec 23 1723 UTC
    
    WARNING: Geomagnetic K-index of 4 expected
    Valid From: 2024 Dec 23 1730 UTC
    Valid To: 2024 Dec 23 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.                                

EF3A 2024-12-23 15:38:52.600

  • Issued: Mon, 23 Dec 2024 15:38:52 +0000
  • Space Weather Message Code: ALTEF3
    Serial Number: 3409
    Issue Time: 2024 Dec 23 1538 UTC
    
    ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
    Threshold Reached: 2024 Dec 23 1520 UTC
    Station: GOES-16
     
    
    
    
    Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.                                

XM5S 2024-12-23 11:41:55.230

  • Issued: Mon, 23 Dec 2024 11:41:55 +0000
  • Space Weather Message Code: SUMXM5
    Serial Number: 274
    Issue Time: 2024 Dec 23 1141 UTC
    
    SUMMARY: X-ray Event exceeded M5
    Begin Time: 2024 Dec 23 1106 UTC
    Maximum Time: 2024 Dec 23 1112 UTC
    End Time: 2024 Dec 23 1116 UTC
    X-ray Class: M8.9
    Location: S18E30
    NOAA Scale: R2 - Moderate
    
    NOAA Space Weather Scale descriptions can be found at
    www.swpc.noaa.gov/noaa-scales-explanation
    
    Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
    Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.                                

TIIA 2024-12-23 11:25:49.550

  • Issued: Mon, 23 Dec 2024 11:25:49 +0000
  • Space Weather Message Code: ALTTP2
    Serial Number: 1384
    Issue Time: 2024 Dec 23 1125 UTC
    
    ALERT: Type II Radio Emission
    Begin Time: 2024 Dec 23 1111 UTC
    Estimated Velocity: 731 km/s
    
    
    
    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.                                

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