Space Weather Alerts

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

K04W 2025-01-16 20:48:56.080

  • Issued: Thu, 16 Jan 2025 20:48:56 +0000
  • Space Weather Message Code: WARK04
    Serial Number: 4811
    Issue Time: 2025 Jan 16 2048 UTC
    
    WARNING: Geomagnetic K-index of 4 expected
    Valid From: 2025 Jan 16 2048 UTC
    Valid To: 2025 Jan 17 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.                                

K04W 2025-01-16 02:43:04.117

  • Issued: Thu, 16 Jan 2025 02:43:04 +0000
  • Space Weather Message Code: WARK04
    Serial Number: 4810
    Issue Time: 2025 Jan 16 0243 UTC
    
    WARNING: Geomagnetic K-index of 4 expected
    Valid From: 2025 Jan 16 0242 UTC
    Valid To: 2025 Jan 16 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.                                

K04W 2025-01-15 16:54:40.110

  • Issued: Wed, 15 Jan 2025 16:54:40 +0000
  • Space Weather Message Code: WARK04
    Serial Number: 4809
    Issue Time: 2025 Jan 15 1654 UTC
    
    EXTENDED WARNING: Geomagnetic K-index of 4 expected
    Extension to Serial Number: 4808
    Valid From: 2025 Jan 15 0138 UTC
    Now Valid Until: 2025 Jan 15 2100 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.                                

K04W 2025-01-15 08:54:57.577

  • Issued: Wed, 15 Jan 2025 08:54:57 +0000
  • Space Weather Message Code: WARK04
    Serial Number: 4808
    Issue Time: 2025 Jan 15 0854 UTC
    
    EXTENDED WARNING: Geomagnetic K-index of 4 expected
    Extension to Serial Number: 4807
    Valid From: 2025 Jan 15 0138 UTC
    Now Valid Until: 2025 Jan 15 1800 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.                                

K04W 2025-01-14 17:28:38.400

  • Issued: Tue, 14 Jan 2025 17:28:38 +0000
  • Space Weather Message Code: WARK04
    Serial Number: 4806
    Issue Time: 2025 Jan 14 1728 UTC
    
    WARNING: Geomagnetic K-index of 4 expected
    Valid From: 2025 Jan 14 1800 UTC
    Valid To: 2025 Jan 14 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.                                

Latest Astronomy Alerts

Coronal Mass Ejection Alerts

2025-04-19T00:00:00-CME-001

  • Start: 04/19/2025 00:00:00
  • Catalog: M2M_CATALOG
  • Source: S29E90
Read More

Space Weather Alerts

K05W 2025-04-18 04:48:00.927

Space Weather Message Code: WARK05 Serial Number: 2024 Issue Time: 2025 Apr 18 0448 UTC WARNING: Geomagnetic K-index of 5 expected Valid From: 2025 Apr 18 0447 UTC Valid To:… Read More

Geo Magnetic Storm Alerts

3-Day Forecast - 2025 Apr 19 0030 UTC

:Product: 3-Day Forecast :Issued: 2025 Apr 19 0030 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

2025-04-18T23:08:00-FLR-001

  • Begins: 04/18/2025 23:08:00
  • Ends: 04/19/2025 00:15:00
  • Class: M4.4
Read More