Weekend Solar Flare Frenzy Could Spark Geomagnetic Storms
From ARRL de WD1CKS@VERT/WLARB to QST on Tuesday, May 25, 2021 15:48:41
The Space Weather Prediction Center (SWPC) has issued a G1 (minor) geomagnetic storm watch for May 25 and a G2 (moderate) geomagnetic storm watch for May 26. These are the result of multiple solar flares on May 22. According to Spaceweather.com, NASA's Solar Dynamics Observatory recorded 10 C-class and two M-class flares, sending multiple overlapping coronal mass ejections (CMEs) into space. According to NOAA models, a combined CME will hit Earth's magnetic field late on May 25.
Spaceweather.com said, "Earth-orbiting satellites detected a dozen explosions in the magnetic canopy of sunspot AR2824. One of them emitted a radio burst so strong, it drowned out static from lightning storms on Earth and was recorded at midnight by listening stations in the Arctic."