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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: Nov 3rd, 2025 5:14:45 am
Space Weather Message Code: ALTXMF
- Serial Number: 492
- Issue Time: 2025 Nov 03 1014 UTC
- ALERT: X-Ray Flux exceeded M5
- Threshold Reached: 2025 Nov 03 1013 UTC
- 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 on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.
Geophysical Alert Message Issued: Nov 3rd, 2025 3:46:40 am
Space Weather Message Code: WARK05
- Serial Number: 2129
- Issue Time: 2025 Nov 03 0846 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2025 Nov 03 0845 UTC
- Valid To: 2025 Nov 03 1500 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.
Geophysical Alert Message Issued: Nov 3rd, 2025 3:05:04 am
Space Weather Message Code: WARK04
- Serial Number: 5133
- Issue Time: 2025 Nov 03 0805 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5132
- Valid From: 2025 Nov 02 1711 UTC
- Now Valid Until: 2025 Nov 03 1500 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: Nov 2nd, 2025 11:59:39 pm
Space Weather Message Code: ALTEF3
- Serial Number: 3554
- Issue Time: 2025 Nov 03 0459 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3553
- Begin Time: 2025 Oct 31 1250 UTC
- Yesterday Maximum 2MeV Flux: 12611 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Nov 2nd, 2025 12:55:19 pm
Space Weather Message Code: ALTK04
- Serial Number: 2603
- Issue Time: 2025 Nov 02 1755 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2025 Nov 02 1749 UTC
- Synoptic Period: 1500-1800 UTC
- Active Warning: Yes
- 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: Nov 2nd, 2025 12:12:28 pm
Space Weather Message Code: WARK04
- Serial Number: 5132
- Issue Time: 2025 Nov 02 1712 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 Nov 02 1711 UTC
- Valid To: 2025 Nov 03 0900 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.
Geophysical Alert Message Issued: Nov 2nd, 2025 12:59:24 am
Space Weather Message Code: ALTEF3
- Serial Number: 3553
- Issue Time: 2025 Nov 02 0459 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3552
- Begin Time: 2025 Oct 31 1250 UTC
- Yesterday Maximum 2MeV Flux: 10574 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Nov 1st, 2025 10:36:40 pm
Space Weather Message Code: WARK04
- Serial Number: 5131
- Issue Time: 2025 Nov 02 0236 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5130
- Valid From: 2025 Oct 27 2325 UTC
- Now Valid Until: 2025 Nov 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.
Geophysical Alert Message Issued: Nov 1st, 2025 4:56:08 pm
Space Weather Message Code: WARK04
- Serial Number: 5130
- Issue Time: 2025 Nov 01 2056 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5129
- Valid From: 2025 Oct 27 2325 UTC
- Now Valid Until: 2025 Nov 02 0300 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: Nov 1st, 2025 1:56:09 am
Space Weather Message Code: WARK04
- Serial Number: 5129
- Issue Time: 2025 Nov 01 0556 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5128
- Valid From: 2025 Oct 27 2325 UTC
- Now Valid Until: 2025 Nov 01 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.
