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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: Mar 29th, 2026 11:48:24 am
Space Weather Message Code: WARK04
- Serial Number: 5304
- Issue Time: 2026 Mar 29 1548 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 Mar 29 1546 UTC
- Valid To: 2026 Mar 30 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: Mar 29th, 2026 8:47:46 am
Space Weather Message Code: ALTEF3
- Serial Number: 3660
- Issue Time: 2026 Mar 29 1247 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3659
- Begin Time: 2026 Mar 22 1430 UTC
- Yesterday Maximum 2MeV Flux: 1596 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Mar 28th, 2026 11:00:17 pm
Space Weather Message Code: ALTK04
- Serial Number: 2647
- Issue Time: 2026 Mar 29 0300 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2026 Mar 29 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: Mar 28th, 2026 10:07:41 pm
Space Weather Message Code: WARK04
- Serial Number: 5303
- Issue Time: 2026 Mar 29 0207 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 Mar 29 0207 UTC
- Valid To: 2026 Mar 29 1200 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: Mar 28th, 2026 12:32:11 pm
Space Weather Message Code: WATA20
- Serial Number: 1103
- Issue Time: 2026 Mar 28 1632 UTC
- WATCH: Geomagnetic Storm Category G1 Predicted
- Highest Storm Level Predicted by Day:
- Mar 29: None (Below G1) Mar 30: G1 (Minor) Mar 31: None (Below G1)
- THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
- Comment: Isolated periods of G1 (Minor) geomagnetic storming are likely on 30 Mar due to CH HSS effects.
- 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: Mar 28th, 2026 10:55:23 am
Space Weather Message Code: ALTEF3
- Serial Number: 3659
- Issue Time: 2026 Mar 28 1455 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3658
- Begin Time: 2026 Mar 22 1430 UTC
- Yesterday Maximum 2MeV Flux: 12785 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Mar 28th, 2026 4:08:35 am
Space Weather Message Code: ALTTP2
- Serial Number: 1472
- Issue Time: 2026 Mar 28 0808 UTC
- ALERT: Type II Radio Emission
- Begin Time: 2026 Mar 28 0736 UTC
- Estimated Velocity: 868 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: Mar 27th, 2026 10:18:47 pm
Space Weather Message Code: WARK04
- Serial Number: 5302
- Issue Time: 2026 Mar 28 0218 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 Mar 28 0218 UTC
- Valid To: 2026 Mar 28 1200 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: Mar 27th, 2026 1:00:11 am
Space Weather Message Code: ALTEF3
- Serial Number: 3658
- Issue Time: 2026 Mar 27 0500 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3657
- Begin Time: 2026 Mar 22 1430 UTC
- Yesterday Maximum 2MeV Flux: 11382 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Mar 26th, 2026 8:21:36 am
Space Weather Message Code: ALTTP2
- Serial Number: 1471
- Issue Time: 2026 Mar 26 1221 UTC
- ALERT: Type II Radio Emission
- Begin Time: 2026 Mar 26 0617 UTC
- Estimated Velocity: 607 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.
