Space Weather Alerts

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

SGIW 2023-03-15 04:07:13.340

  • Issued: Wed, 15 Mar 2023 04:07:13 +0000
  • Space Weather Message Code: WARSUD
    Serial Number: 199
    Issue Time: 2023 Mar 15 0407 UTC
    
    WARNING: Geomagnetic Sudden Impulse expected
    Valid From: 2023 Mar 15 0430 UTC
    Valid To: 2023 Mar 15 0530 UTC
    IP Shock Passage Observed: 2023 Mar 15 0348 UTC
    
    NOAA Space Weather Scale descriptions can be found at
    www.swpc.noaa.gov/noaa-scales-explanation                                

K06W 2023-03-15 04:00:53.640

  • Issued: Wed, 15 Mar 2023 04:00:53 +0000
  • Space Weather Message Code: WARK06
    Serial Number: 472
    Issue Time: 2023 Mar 15 0400 UTC
    
    WARNING: Geomagnetic K-Index of 6 expected
    Valid From: 2023 Mar 15 0400 UTC
    Valid To: 2023 Mar 15 1200 UTC
    Warning Condition: Onset
    NOAA Scale: G2 - Moderate
    
    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.                                

K05A 2023-03-15 03:56:18.830

  • Issued: Wed, 15 Mar 2023 03:56:18 +0000
  • Space Weather Message Code: ALTK05
    Serial Number: 1441
    Issue Time: 2023 Mar 15 0356 UTC
    
    ALERT: Geomagnetic K-index of 5
    Threshold Reached: 2023 Mar 15 0355 UTC
    Synoptic Period: 0300-0600 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.                                

K05W 2023-03-15 03:47:52.760

  • Issued: Wed, 15 Mar 2023 03:47:52 +0000
  • Space Weather Message Code: WARK05
    Serial Number: 1753
    Issue Time: 2023 Mar 15 0347 UTC
    
    WARNING: Geomagnetic K-index of 5 expected
    Valid From: 2023 Mar 15 0347 UTC
    Valid To: 2023 Mar 15 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.                                

K04W 2023-03-14 23:23:37.033

  • Issued: Tue, 14 Mar 2023 23:23:37 +0000
  • Space Weather Message Code: WARK04
    Serial Number: 4314
    Issue Time: 2023 Mar 14 2323 UTC
    
    EXTENDED WARNING: Geomagnetic K-index of 4 expected
    Extension to Serial Number: 4313
    Valid From: 2023 Mar 14 0422 UTC
    Now Valid Until: 2023 Mar 15 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.                                

Latest Astronomy Alerts

Coronal Mass Ejection Alerts

2025-04-02T09:24:00-CME-001

  • Start: 04/02/2025 09:24:00
  • Catalog: M2M_CATALOG
  • Source:
Read More

Space Weather Alerts

A20F 2025-04-02 21:12:53.093

Space Weather Message Code: WATA20 Serial Number: 1035 Issue Time: 2025 Apr 02 2112 UTC WATCH: Geomagnetic Storm Category G1 Predicted Highest Storm Level Predicted by Day: Apr 03: None… Read More

Geo Magnetic Storm Alerts

3-Day Forecast - 2025 Apr 03 0030 UTC

:Product: 3-Day Forecast :Issued: 2025 Apr 03 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

2025-04-01T22:18:00-FLR-001

  • Begins: 04/01/2025 22:18:00
  • Ends: 04/01/2025 22:41:00
  • Class: M2.5
Read More