Update: G1 (Minor) Geomagnetic Storm Alert Issued
published: Wednesday, June 20, 2018 00:50 UTC UTC
Update: A G1 (Minor) geomagnetic storm alert was issued at 18/0256 UTC (10:56 pm Eastern). A G1 (Minor) storm warning is valid from 0220-0900 UTC on 18 June (10:20 pm- 5:00 am Eastern) due to coronal hole high speed stream activity.