In the wake of a "severe" geomagnetic storm on New Years Day that sparked the northern lights across the U.S., more aurora may be visible in the coming days. NOAA's Space Weather Prediction Center ...

and Feb. 1. Keep up with current northern lights forecasts and geomagnetic storm warnings with our aurora forecast live blog. A massive 500,000-mile-wide (800,000-kilometer) coronal hole in the ...

As a result, the SWPC issued a "Severe" Geomagnetic Storm Warning, which was extended through Wednesday night. Severe geomagnetic storms are not frequent but not uncommon. A severe solar storm can ...

Solar storms are rated by NOAA’s Space Weather Prediction Center (SWPC) on a five-level scale, with five being the most extreme and rarest space weather conditions. Level 4 out of 5, or "severe," ...