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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: Jul 9th, 2026 7:19:28 am
Space Weather Message Code: WARK04
- Serial Number: 5381
- Issue Time: 2026 Jul 09 1119 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 Jul 09 1119 UTC
- Valid To: 2026 Jul 10 1200 UTC
- Warning Conditions: Onset
- Comment:
- 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: Jul 8th, 2026 1:29:41 am
Space Weather Message Code: WARK04
- Serial Number: 5380
- Issue Time: 2026 Jul 08 0529 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 Jul 08 0528 UTC
- Valid To: 2026 Jul 08 1200 UTC
- Warning Conditions: Onset
- Comment:
- 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: Jul 7th, 2026 7:18:39 pm
Space Weather Message Code: ALTTP2
- Serial Number: 1514
- Issue Time: 2026 Jul 07 2318 UTC
- ALERT: Type II Radio Emission
- Begin Time: 2026 Jul 07 2256 UTC
- Estimate Velocity: 1441 km/s
- Comment:
Geophysical Alert Message Issued: Jul 7th, 2026 10:56:18 am
Space Weather Message Code: ALTTP4
- Serial Number: 713
- Issue Time: 2026 Jul 07 1456 UTC
- ALERT: Type IV Radio Emission
- Begin Time: 2026 Jul 07 1435 UTC
- Comment:
Geophysical Alert Message Issued: Jul 7th, 2026 10:43:50 am
Space Weather Message Code: ALTTP2
- Serial Number: 1513
- Issue Time: 2026 Jul 07 1443 UTC
- ALERT: Type II Radio Emission
- Begin Time: 2026 Jul 07 1420 UTC
- Estimate Velocity: 593 km/s
- Comment:
Geophysical Alert Message Issued: Jul 7th, 2026 1:06:59 am
Space Weather Message Code: ALTEF3
- Serial Number: 3711
- Issue Time: 2026 Jul 07 0506 UTC
- CANCEL ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Cancel Serial Number: 3710
- Original Issue Time: 2026 Jul 07 0503 UTC
- Incorrect maximum value for yesterday.
- Incorrect maximum value for yesterday.
Geophysical Alert Message Issued: Jul 7th, 2026 1:07:12 am
Space Weather Message Code: ALTEF3
- Serial Number: 3712
- Issue Time: 2026 Jul 07 0507 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3709
- Begin Time: 2026 Jul 06 1149 UTC
- Yesterday Maximum 2MeV Flux: 1936 pfu
Geophysical Alert Message Issued: Jul 7th, 2026 1:03:30 am
Space Weather Message Code: ALTEF3
- Serial Number: 3710
- Issue Time: 2026 Jul 07 0503 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3709
- Begin Time: 2026 Jul 06 1149 UTC
- Yesterday Maximum 2MeV Flux: 1936 pfu
- Yesterday's max: 194 pfu
- Yesterday's max: 194 pfu
Geophysical Alert Message Issued: Jul 6th, 2026 7:50:00 am
Space Weather Message Code: ALTEF3
- Serial Number: 3709
- Issue Time: 2026 Jul 06 1150 UTC
- ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Threshold Reached: 2026 Jul 06 1149 UTC
- Station: GOES-19
- Comment: Yesterday's max: 625 pfu
- Yesterday's max: 625 pfu
Geophysical Alert Message Issued: Jul 5th, 2026 2:22:46 pm
Space Weather Message Code: ALTTP2
- Serial Number: 1512
- Issue Time: 2026 Jul 05 1822 UTC
- ALERT: Type II Radio Emission
- Begin Time: 2026 Jul 05 1626 UTC
- Estimate Velocity: 959 km/s
- Comment:


