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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.
Space Weather Message Code: WATA30
- Serial Number: 264
- Issue Time: 2026 Mar 16 2025 UTC
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- WATCH: Geomagnetic Storm Category G2 Predicted
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- Highest Storm Level Predicted by Day:
- Mar 17: None (Below G1) Mar 18: None (Below G1) Mar 19: G2 (Moderate)
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- THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
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- Comment: G2 (Moderate) geomagnetic storming is likely on 19 Mar with the arrival of the 16 Mar CME event. This event was associated with an M2.7 flare from AR 4392.
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- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
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- 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.
Space Weather Message Code: ALTEF3
- Serial Number: 3648
- Issue Time: 2026 Mar 16 1320 UTC
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- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3647
- Begin Time: 2026 Mar 15 1630 UTC
- Yesterday Maximum 2MeV Flux: 1429 pfu
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- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Space Weather Message Code: SUM10R
- Serial Number: 901
- Issue Time: 2026 Mar 16 1229 UTC
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- SUMMARY: 10cm Radio Burst
- Begin Time: 2026 Mar 16 1209 UTC
- Maximum Time: 2026 Mar 16 1213 UTC
- End Time: 2026 Mar 16 1217 UTC
- Duration: 8 minutes
- Peak Flux: 380 sfu
- Latest Penticton Noon Flux: 109 sfu
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- Comment: Associated with M2.7 flare from AR 4392.
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- 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.
Space Weather Message Code: ALTTP2
- Serial Number: 1469
- Issue Time: 2026 Mar 16 1224 UTC
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- ALERT: Type II Radio Emission
- Begin Time: 2026 Mar 16 1209 UTC
- Estimated Velocity: 1227 km/s
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- Comment: Likely associated with M2.7 flare from AR 4392.
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- 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.
Space Weather Message Code: ALTTP4
- Serial Number: 705
- Issue Time: 2026 Mar 16 1226 UTC
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- ALERT: Type IV Radio Emission
- Begin Time: 2026 Mar 16 1212 UTC
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- 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.
