Space Weather Alerts

Home » Astronomy Information » Latest Astronomy Alerts » Space Weather Alerts

K05A 2025-01-01 18:11:53.527

  • Issued: Wed, 01 Jan 2025 18:11:53 +0000
  • Space Weather Message Code: ALTK05
    Serial Number: 1687
    Issue Time: 2025 Jan 01 1811 UTC
    
    ALERT: Geomagnetic K-index of 5
     Threshold Reached: 2025 Jan 01 1805 UTC
    Synoptic Period: 1800-2100 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 2025-01-01 18:02:50.010

  • Issued: Wed, 01 Jan 2025 18:02:50 +0000
  • Space Weather Message Code: WARK04
    Serial Number: 4790
    Issue Time: 2025 Jan 01 1802 UTC
    
    EXTENDED WARNING: Geomagnetic K-index of 4 expected
    Extension to Serial Number: 4789
    Valid From: 2024 Dec 31 1615 UTC
    Now Valid Until: 2025 Jan 02 1200 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.                                

K07W 2025-01-01 18:02:50.027

  • Issued: Wed, 01 Jan 2025 18:02:50 +0000
  • Space Weather Message Code: WARK07
    Serial Number: 123
    Issue Time: 2025 Jan 01 1802 UTC
    
    EXTENDED WARNING: Geomagnetic K-index of 7 or greater expected
    Extension to Serial Number: 122
    Valid From: 2025 Jan 01 1124 UTC
    Now Valid Until: 2025 Jan 02 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 50 degrees Geomagnetic Latitude.
    Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
    Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
    Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
    Radio - HF (high frequency) radio may be intermittent.
    Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.                                

K06W 2025-01-01 18:02:50.043

  • Issued: Wed, 01 Jan 2025 18:02:50 +0000
  • Space Weather Message Code: WARK06
    Serial Number: 558
    Issue Time: 2025 Jan 01 1802 UTC
    
    EXTENDED WARNING: Geomagnetic K-Index of 6 expected
    Extension to Serial Number: 557
    Valid From: 2025 Jan 01 0950 UTC
    Now Valid Until: 2025 Jan 02 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 55 degrees Geomagnetic Latitude.
    Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
    Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
    Radio - HF (high frequency) radio propagation can fade at higher latitudes.
    Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.                                

K05W 2025-01-01 18:02:49.997

  • Issued: Wed, 01 Jan 2025 18:02:49 +0000
  • Space Weather Message Code: WARK05
    Serial Number: 1962
    Issue Time: 2025 Jan 01 1802 UTC
    
    EXTENDED WARNING: Geomagnetic K-index of 5 expected
    Extension to Serial Number: 1961
    Valid From: 2024 Dec 31 1615 UTC
    Now Valid Until: 2025 Jan 02 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.                                

Latest Astronomy Alerts

Coronal Mass Ejection Alerts

2025-06-04T11:48:00-CME-001

  • Start: 06/04/2025 11:48:00
  • Catalog: M2M_CATALOG
  • Source: N23E45
Read More

Space Weather Alerts

K05A 2025-06-04 16:20:00.140

Space Weather Message Code: ALTK05 Serial Number: 1805 Issue Time: 2025 Jun 04 1619 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2025 Jun 04 1619 UTC Synoptic Period: 1500-1800… Read More

Geo Magnetic Storm Alerts

3-Day Forecast - 2025 Jun 04 1230 UTC

:Product: 3-Day Forecast :Issued: 2025 Jun 04 1230 UTC # Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center # A. NOAA Geomagnetic Activity Observation and Forecast… Read More

Solar Flare Alerts

2025-06-03T12:52:00-FLR-001

  • Begins: 06/03/2025 12:52:00
  • Ends: 06/03/2025 13:12:00
  • Class: M1.4
Read More