G3 (Strong) or Greater Geomagnetic storms expected
published: Friday, March 20, 2015 00:04 UTC UTC
Strong (G3) geomagnetic storms or greater are expected as the impacts from todays shock continue. The interplanetary shock arrived at the ACE spacecraft at 0405 UTC (12:05 a.m. EDT) and at Earth a half hour later. These disturbed geomagnetic conditions are expected to continue for the next several hours.