Solar storm lights up auroras from Europe to Southern California, 23-year radiation record broken
TL;DR Summary
A powerful solar radiation storm triggered by an X-class solar flare and a CME struck Earth, producing widespread auroras across Europe and parts of North America, with sightings as far south as Southern California. The storm peaked at G4 (severe) on the geomagnetic scale per NOAA’s SWPC. While dramatic, it wasn’t the strongest in two decades (the 2024 Mother’s Day event held that distinction), but it did set a 23-year record for solar-radiation storms.
- Earth hit by biggest 'solar radiation storm' in 23 years, triggering Northern Lights as far as Southern California Live Science
- Earth was just hit by the strongest solar radiation storm in over 20 years — here's what it means Space
- Update: G4 (Severe) Geomagnetic Storm Alert Issued NOAA Space Weather Prediction Center (.gov)
- Northern Lights Could Be Visible Across Much of the U.S. Tonight The New York Times
- How to look for Northern Lights in Southern New England tonight The Boston Globe
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