#X-CLASS #SOLAR #FLARE AND #CME: New #sunspot AR3341 erupted on June 20th, producing an X1.1-class solar flare (1709 UT). NASA's Solar Dynamics Observatory captured the extreme ultraviolet flash:
#Radiation from the flare ionized the top of #Earth's #atmosphere. This caused a deep shortwave radio blackout over North America: map. Aviators and ham radio operators may have noticed loss of signal at frequencies below 30 MHz for as much as 20 minutes after the flare.
SOHO coronagraphs have since detected a CME. It is the fan-shaped cloud expanding away from the sun's southeastern limb (8 o'clock position):
The CME's expansion velocity exceeds 1000 km/s (2.2 million mph), according to Type II radio bursts detected by the US Air Force. It's a fast mover that should deliver a potent blow to whatever it hits.
Earth is probably not in the strike zone, although a glancing blow may be possible on June 22nd or 23rd.
https://spaceweather.com/