Space Weather Prediction Center

National Oceanic and Atmospheric Administration

G1 (Minor) Geomagnetic Storm Levels Observed

G1 (Minor) Geomagnetic Storm Levels Observed
published: Sunday, July 23, 2017 11:10 UTC UTC

G1 (Minor) geomagnetic storm levels were observed at 11:42 UTC (07:42 ET) on 22 July due to activity associated with a coronal hole high speed stream.  A G1 (Minor) storm warning is in effect until 15:00 UTC on 22 July.