G1 (Minor) Geomagnetic Storm Warning Valid on 19 Feb
published: Tuesday, February 20, 2018 08:17 UTC UTC
A G1 (Minor) geomagnetic storm warning is valid for 19 Feb from 0244-0900 UTC (19/0944-1600 EST). A G1 Alert for observed conditions was issued for 19/0259 UTC. Enhancements in visible aurora are likely at high latitudes in the night sector.