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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: Oct 10th, 2025 2:46:55 am
Space Weather Message Code: ALTEF3
- Serial Number: 3542
- Issue Time: 2025 Oct 10 0646 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3541
- Begin Time: 2025 Oct 01 1325 UTC
- Yesterday Maximum 2MeV Flux: 5051 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Oct 9th, 2025 11:02:10 pm
Space Weather Message Code: ALTK04
- Serial Number: 2595
- Issue Time: 2025 Oct 10 0302 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2025 Oct 10 0259 UTC
- Synoptic Period: 0000-0300 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: Oct 9th, 2025 9:49:09 pm
Space Weather Message Code: WARK04
- Serial Number: 5102
- Issue Time: 2025 Oct 10 0149 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 Oct 10 0148 UTC
- Valid To: 2025 Oct 10 1500 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: Oct 9th, 2025 5:15:57 pm
Space Weather Message Code: WATA20
- Serial Number: 1068
- Issue Time: 2025 Oct 09 2115 UTC
- WATCH: Geomagnetic Storm Category G1 Predicted
- Highest Storm Level Predicted by Day:
- Oct 10: None (Below G1) Oct 11: None (Below G1) Oct 12: G1 (Minor)
- 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 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: Oct 9th, 2025 10:03:15 am
Space Weather Message Code: ALTEF3
- Serial Number: 3541
- Issue Time: 2025 Oct 09 1403 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3540
- Begin Time: 2025 Oct 01 1325 UTC
- Yesterday Maximum 2MeV Flux: 4767 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Oct 8th, 2025 1:36:03 am
Space Weather Message Code: ALTK04
- Serial Number: 2594
- Issue Time: 2025 Oct 08 0536 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2025 Oct 08 0532 UTC
- Synoptic Period: 0300-0600 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: Oct 8th, 2025 1:36:59 am
Space Weather Message Code: ALTEF3
- Serial Number: 3540
- Issue Time: 2025 Oct 08 0536 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3539
- Begin Time: 2025 Oct 01 1325 UTC
- Yesterday Maximum 2MeV Flux: 10522 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Oct 8th, 2025 1:26:20 am
Space Weather Message Code: WARK04
- Serial Number: 5101
- Issue Time: 2025 Oct 08 0526 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 Oct 08 0525 UTC
- Valid To: 2025 Oct 08 1800 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: Oct 8th, 2025 12:08:27 am
Space Weather Message Code: WARK04
- Serial Number: 5100
- Issue Time: 2025 Oct 08 0408 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 Oct 08 0408 UTC
- Valid To: 2025 Oct 08 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: Oct 7th, 2025 4:51:01 pm
Space Weather Message Code: ALTTP2
- Serial Number: 1432
- Issue Time: 2025 Oct 07 2051 UTC
- ALERT: Type II Radio Emission
- Begin Time: 2025 Oct 07 2007 UTC
- Estimated Velocity: 755 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.
