SPACEWEATHER.COM NEWS: 09-21-2023
GEOMAGNETIC STORM WATCH (G1): Yesterday’s M8-class solar flare from sunspot AR3435 (movie) hurled a CME into space. NOAA analysts believe it could graze Earth’s magnetic field and cause a minor G1-class geomagnetic storm on Sept. 23rd. A second CME might be following close behind as a result of today’s M9-class flare, described below. Aurora alerts: SMS Text
ANOTHER ALMOST-X FLARE (UPDATED): Sunspot AR3435 erupted again today (Sept. 21 @ 1254 UT), producing an M9-class solar flare. NASA’s Solar Dynamics Observatory recorded the extreme ultravolet flash.
