Tag: coronal_hole

NOAA Forecasts Minor Geomagnetic Storms This Week

28 Jun 2026 11:08 p.m. · Source: NOAA

NOAA forecasts G1 (Minor) geomagnetic storms for June 29-30 due to a coronal mass ejection, following a similar storm on June 25 caused by a coronal hole. The Space Weather Prediction Center advises on upcoming space weather.

Science & Technology Astronomy and Space Federal Government NOAA Space Weather Geomagnetic Storm Coronal Mass Ejection Coronal Hole Boulder, Colorado Astronomy Solar Flares