Large Solar Eruption and Earth Directed CME - Geomagnetic Storm Watch

Two dark plumes of plasma flew into space on July 21st when a magnetic filament connected to sunspot AR3757 erupted. Shortly after the blast, SOHO coronagraphs recorded a halo CME leaving the sun. A preliminary NASA model of the CME predicts it will hit Earth during the late hours of July 24th. NOAA/SWPC issued a moderate (G2) geomagnetic storm watch for July 24th when a CME is predicted to pass Earth.