Yesterday, the sun launched a coronal mass ejection (CME) into space. It wasn't aimed directly at Earth. Nevertheless, we might feel its effect on March 23rd when the storm cloud is expected to deliver a glancing blow to Earth's magnetic field.
The source of the CME appeared to have originated along a SE-NW oriented broad channel in the southern hemisphere. Coronal dimming and reconnection was observed along this channel beginning about 19/2000 UTC and continued through midday on 20 March.
Sunspot AR2810 exhibited slight decay this period and remained quiet. An area of enhanced plage was observed on the east limb and produced a few B class events.
Space Weather Forecast
The geomagnetic field is expected to reach active to G1 (Minor) geomagnetic storm levels on 21-22 March. By 23 Mar, active levels are possible due to a potential glancing blow from the CME observed early on 20 March.
Stay Tuned!
Music credit: YouTube Audio Library
Blue Macaw - Quincas Moreira