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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: Jan 1st, 2026 9:44:43 am
Space Weather Message Code: WARK04
- Serial Number: 5201
- Issue Time: 2026 Jan 01 1444 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 Jan 01 1444 UTC
- Valid To: 2026 Jan 01 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.
Geophysical Alert Message Issued: Jan 1st, 2026 3:43:36 am
Space Weather Message Code: WARK04
- Serial Number: 5200
- Issue Time: 2026 Jan 01 0843 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5199
- Valid From: 2026 Jan 01 0430 UTC
- Now Valid Until: 2026 Jan 01 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: Dec 31st, 2025 11:09:43 pm
Space Weather Message Code: WARK04
- Serial Number: 5199
- Issue Time: 2026 Jan 01 0409 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 Jan 01 0430 UTC
- Valid To: 2026 Jan 01 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: Dec 31st, 2025 5:59:24 pm
Space Weather Message Code: WATA30
- Serial Number: 263
- Issue Time: 2025 Dec 31 2259 UTC
- WATCH: Geomagnetic Storm Category G2 Predicted
- Highest Storm Level Predicted by Day:
- Jan 01: G1 (Minor) Jan 02: G1 (Minor) Jan 03: G2 (Moderate)
- THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
- 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: Dec 31st, 2025 11:32:22 am
Space Weather Message Code: ALTEF3
- Serial Number: 3591
- Issue Time: 2025 Dec 31 1632 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3590
- Begin Time: 2025 Dec 21 1425 UTC
- Yesterday Maximum 2MeV Flux: 5613 pfu
- Comment: Electrons went over threshold at 31/1255 through 31/1530 UTC.
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Dec 31st, 2025 9:25:30 am
Space Weather Message Code: SUMXM5
- Serial Number: 303
- Issue Time: 2025 Dec 31 1425 UTC
- SUMMARY: X-ray Event exceeded M5
- Begin Time: 2025 Dec 31 1312 UTC
- Maximum Time: 2025 Dec 31 1351 UTC
- End Time: 2025 Dec 31 1411 UTC
- X-ray Class: M7.1
- Location: N24E19
- 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 primarily on sub-solar point on the sunlit side of Earth.
- Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.
Geophysical Alert Message Issued: Dec 31st, 2025 9:19:40 am
Space Weather Message Code: SUM10R
- Serial Number: 898
- Issue Time: 2025 Dec 31 1419 UTC
- SUMMARY: 10cm Radio Burst
- Begin Time: 2025 Dec 31 1331 UTC
- Maximum Time: 2025 Dec 31 1348 UTC
- End Time: 2025 Dec 31 1353 UTC
- Duration: 22 minutes
- Peak Flux: 550 sfu
- Latest Penticton Noon Flux: 182 sfu
- Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.
Geophysical Alert Message Issued: Dec 31st, 2025 9:00:21 am
Space Weather Message Code: ALTTP2
- Serial Number: 1461
- Issue Time: 2025 Dec 31 1400 UTC
- ALERT: Type II Radio Emission
- Begin Time: 2025 Dec 31 1333 UTC
- Estimated Velocity: 893 km/s
- 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: Dec 31st, 2025 9:01:05 am
Space Weather Message Code: ALTTP4
- Serial Number: 701
- Issue Time: 2025 Dec 31 1401 UTC
- ALERT: Type IV Radio Emission
- Begin Time: 2025 Dec 31 1342 UTC
- Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.
Geophysical Alert Message Issued: Dec 31st, 2025 8:44:38 am
Space Weather Message Code: ALTXMF
- Serial Number: 507
- Issue Time: 2025 Dec 31 1344 UTC
- ALERT: X-Ray Flux exceeded M5
- Threshold Reached: 2025 Dec 31 1342 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.
