GEOMAGNETIC STORM WATCH: A CME is heading for Earth. The storm cloud left the sun on Dec. 20th (1136 UT), propelled by an M1.9-classsolarflare in the magnetic canopy of sunspot AR2908. NOAA forecasters expect a glancing blow to Earth’s magnetic field on Dec. 23rd, possibly sparking a G1-class geomagnetic storm. Christmas Lights, anyone?
Ydun Ritz (2021-12-21)