Tag: radio_blackouts

NOAA Forecasts Potential Radio Blackouts from Sunspot Activity

25 May 2026 2:08 a.m.

The NOAA Space Weather Prediction Center forecasts potential R1-R2 radio blackouts from May 25-31 due to sunspot Region 4432. This follows minor blackouts on May 22 from sunspot 4436, impacting radio communications.

Science & Technology Weather Astronomy and Space General Weather Federal Government Space Weather Radio Blackouts Sunspot Region 4432 Sunspot Region 4436 Solar Flares NOAA Space Weather Prediction Center Boulder, Colorado