[ORGANIZATION]
Space Weather Prediction Center
Featured in 5 tracked stories · first seen
Situations
September solar activity and geomagnetic storm impacts
3 clusters · 7 sources · last updated
Latest: Solar activity triggers geomagnetic storms and poses grid risks
Forecasts for September indicated fluctuating geomagnetic activity, with initial predictions suggesting a calm period around September 1 followed by potential disturbances on September 4 and 5. Significant activity was e
Solar storm impact on US GPS accuracy
2 clusters · 7 sources · last updated
Latest: Solar storm disrupts US GPS accuracy by over 10 meters
A severe G4-level solar storm occurring in November 2025 caused significant disruptions to Global Positioning System (GPS) accuracy across the continental United States. Triggered by coronal mass ejections interacting wi
Solar activity and geomagnetic storm events
2 clusters · 6 sources · last updated
Latest: Solar flare and CME trigger geomagnetic storm watches
Solar activity in late August 2026 has triggered various space weather warnings. An M6.9 solar flare from Active Region 4513 caused a moderate (R2) radio blackout affecting high-frequency communications in the Arctic, Eu
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NOAA forecasts low geomagnetic activity for September 12, 2026
[TECHNOLOGY] · 2 sources ·