ANOTHER EARTH-DIRECTED EXPLOSION: #Sunspot AR3814 has a mixed-polarity magnetic field that makes it a threat for strong flares. This morning, it exploded while directly facing #Earth:

The #ultraviolet #flash (category M1.2) ionized the top of Earth's atmosphere and caused a brief shortwave radio blackout over the Pacific Ocean. Mariners and ham radio operators may have noticed loss of signal at frequencies below 20 MHz between 00:15 and 01:00 UT.

Of greater interest is the #CME. SOHO coronagraphs detected a full halo CME moving directly toward Earth. A NASA model suggests it will reach our planet during the late hours of Sept. 12th. The impact could cause a G2-class geomagnetic storm.
X-ray Solar Flares
6-hr max: M1 1547 UT Sep10
24-hr: M1 1547 UT Sep10
https://spaceweather.com/