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Having SatCom problems?
A burst of radiation on the sun's surface may trigger a geomagnetic storm, which can disrupt satellite communications.
In order to prevent unnecessary maintenance on satellite communications systems Air Sat One has provided a feed of Geophysical Events from NOAA's Space Weather Prediction Center. Check here to see if solar activity could be a cause of satellite communications problems.
Geophysical Alert Message Issued: May 3rd, 2025 1:27:26 pm
Space Weather Message Code: WARK04
- Serial Number: 4949
- Issue Time: 2025 May 03 1727 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 4948
- Valid From: 2025 May 01 0343 UTC
- Now Valid Until: 2025 May 04 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.
Geophysical Alert Message Issued: May 3rd, 2025 7:49:23 am
Space Weather Message Code: WARK05
- Serial Number: 2032
- Issue Time: 2025 May 03 1149 UTC
- EXTENDED WARNING: Geomagnetic K-index of 5 expected
- Extension to Serial Number: 2031
- Valid From: 2025 May 01 1350 UTC
- Now Valid Until: 2025 May 03 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 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.
Geophysical Alert Message Issued: May 3rd, 2025 6:32:50 am
Space Weather Message Code: ALTK05
- Serial Number: 1765
- Issue Time: 2025 May 03 1032 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 May 03 1030 UTC
- Synoptic Period: 0900-1200 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.
Geophysical Alert Message Issued: May 3rd, 2025 2:51:42 am
Space Weather Message Code: ALTEF3
- Serial Number: 3457
- Issue Time: 2025 May 03 0651 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3456
- Begin Time: 2025 May 02 1330 UTC
- Yesterday Maximum 2MeV Flux: 1451 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: May 2nd, 2025 9:29:14 pm
Space Weather Message Code: WARK06
- Serial Number: 579
- Issue Time: 2025 May 03 0129 UTC
- WARNING: Geomagnetic K-Index of 6 expected
- Valid From: 2025 May 03 0130 UTC
- Valid To: 2025 May 03 0900 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.
Geophysical Alert Message Issued: May 2nd, 2025 8:56:55 pm
Space Weather Message Code: ALTK05
- Serial Number: 1764
- Issue Time: 2025 May 03 0056 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 May 03 0055 UTC
- Synoptic Period: 0000-0300 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.
Geophysical Alert Message Issued: May 2nd, 2025 7:25:28 pm
Space Weather Message Code: ALTK05
- Serial Number: 1763
- Issue Time: 2025 May 02 2325 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 May 02 2320 UTC
- Synoptic Period: 2100-2400 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.
Geophysical Alert Message Issued: May 2nd, 2025 2:02:38 pm
Space Weather Message Code: ALTK05
- Serial Number: 1762
- Issue Time: 2025 May 02 1802 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 May 02 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.
Geophysical Alert Message Issued: May 2nd, 2025 1:46:43 pm
Space Weather Message Code: WARK04
- Serial Number: 4947
- Issue Time: 2025 May 02 1746 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 4946
- Valid From: 2025 May 01 0343 UTC
- Now Valid Until: 2025 May 03 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.
Geophysical Alert Message Issued: May 2nd, 2025 1:41:06 pm
Space Weather Message Code: WARK05
- Serial Number: 2030
- Issue Time: 2025 May 02 1741 UTC
- EXTENDED WARNING: Geomagnetic K-index of 5 expected
- Extension to Serial Number: 2029
- Valid From: 2025 May 01 1350 UTC
- Now Valid Until: 2025 May 03 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.
