Space Weather Prediction Center

National Oceanic and Atmospheric Administration

G1 (Minor) Geomagnetic Storm Watch Extended into 18 April 2017

G1 (Minor) Geomagnetic Storm Watch Extended into 18 April 2017
published: Wednesday, April 19, 2017 03:59 UTC UTC

The G1 (Minor) geomagnetic storm watch currently in effect for today, 17 April 2017  (UTC Day), has been extended into 18 April due to the anticipated influence of an isolated, positive polarity, coronal hole high-speed stream. Stay tuned for updates!