Space Weather Prediction Center

National Oceanic and Atmospheric Administration

Continuing Residual Magnetic Activity Following St. Patrick's Day G4 Storm

Continuing Residual Magnetic Activity Following St. Patrick's Day G4 Storm
published: Thursday, March 19, 2015 14:29 UTC

While the magnetic response from the CME arrival on 17 March has no subsided, residual magnetic activity remains - in part to the presence of elevated solar wind velocities from a coronal hole high speed stream. Conditions as high as G1 (minor) could persist through today (19 Mar).