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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 14th, 2025 4:08:33 am
Space Weather Message Code: SUMX01
- Serial Number: 202
- Issue Time: 2025 Nov 14 0908 UTC
- SUMMARY: X-ray Event exceeded X1
- Begin Time: 2025 Nov 14 0744 UTC
- Maximum Time: 2025 Nov 14 0830 UTC
- End Time: 2025 Nov 14 0840 UTC
- X-ray Class: X4
- Optical Class: na
- Location: N24W68
- NOAA Scale: R3 - Strong
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.
- Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.
Geophysical Alert Message Issued: Nov 14th, 2025 3:41:45 am
Space Weather Message Code: ALTTP2
- Serial Number: 1443
- Issue Time: 2025 Nov 14 0841 UTC
- ALERT: Type II Radio Emission
- Begin Time: 2025 Nov 14 0813 UTC
- Estimated Velocity: 1525 km/s
- Comment: From San Vito
- Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.
Geophysical Alert Message Issued: Nov 14th, 2025 3:26:07 am
Space Weather Message Code: ALTXMF
- Serial Number: 500
- Issue Time: 2025 Nov 14 0826 UTC
- ALERT: X-Ray Flux exceeded M5
- Threshold Reached: 2025 Nov 14 0823 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 13th, 2025 4:11:41 pm
Space Weather Message Code: SUMPX1
- Serial Number: 125
- Issue Time: 2025 Nov 13 2111 UTC
- SUMMARY: Proton Event 10MeV Integral Flux exceeded 10pfu
- Begin Time: 2025 Nov 10 1030 UTC
- Maximum Time: 2025 Nov 12 0215 UTC
- End Time: 2025 Nov 13 2100 UTC
- Maximum 10MeV Flux: 1456 pfu
- NOAA Scale: S3 - Strong
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
Geophysical Alert Message Issued: Nov 13th, 2025 3:56:40 pm
Space Weather Message Code: WARK05
- Serial Number: 2138
- Issue Time: 2025 Nov 13 2056 UTC
- EXTENDED WARNING: Geomagnetic K-index of 5 expected
- Extension to Serial Number: 2137
- Valid From: 2025 Nov 11 2343 UTC
- Now Valid Until: 2025 Nov 14 0900 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: Nov 13th, 2025 3:58:26 pm
Space Weather Message Code: WARK04
- Serial Number: 5149
- Issue Time: 2025 Nov 13 2058 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5148
- Valid From: 2025 Nov 11 2230 UTC
- Now Valid Until: 2025 Nov 14 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 13th, 2025 10:38:58 am
Space Weather Message Code: WATA50
- Serial Number: 93
- Issue Time: 2025 Nov 13 1538 UTC
- WATCH: Geomagnetic Storm Category G3 Predicted
- Highest Storm Level Predicted by Day:
- Nov 13: G3 (Strong) Nov 14: G1 (Minor) Nov 15: None (Below G1)
- THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
- Comment: Downgrading watch to G3 (Strong) for the remainder of 13 Nov as geomagnetic activity gradually subsides.
- 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.
Geophysical Alert Message Issued: Nov 13th, 2025 9:47:29 am
Space Weather Message Code: WARK06
- Serial Number: 625
- Issue Time: 2025 Nov 13 1447 UTC
- EXTENDED WARNING: Geomagnetic K-Index of 6 expected
- Extension to Serial Number: 624
- Valid From: 2025 Nov 11 2344 UTC
- Now Valid Until: 2025 Nov 13 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 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: Nov 13th, 2025 9:36:21 am
Space Weather Message Code: ALTK05
- Serial Number: 1914
- Issue Time: 2025 Nov 13 1436 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 Nov 13 1435 UTC
- Synoptic Period: 1200-1500 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: Nov 13th, 2025 6:45:22 am
Space Weather Message Code: WARPX1
- Serial Number: 615
- Issue Time: 2025 Nov 13 1145 UTC
- EXTENDED WARNING: Proton 10MeV Integral Flux above 10pfu expected
- Extension to Serial Number: 614
- Valid From: 2025 Nov 10 1030 UTC
- Now Valid Until: 2025 Nov 13 2100 UTC
- Warning Condition: Persistence
- Predicted NOAA Scale: S1 - Minor
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.
