Two M1.2 solar flares erupt from Region 3141
Two M1.2 solar flares erupted from Active Region 3141 (Beta-Gamma-Delta) on November 11, 2022 – the first at 07:14 and the second at 11:40 UTC. The region is located at the center of the solar disk — coronal mass ejections (CMEs) produced by it are likely to be Earth-directed.
Both flares had Type IV Radio Emissions associated. These emissions occur in association with major eruptions on the Sun and are typically associated with strong coronal mass ejections and solar radiation storms.
Coronagraph imagery associated with the first flare showed a very narrow CME signature directed eastward of the Sun-Earth line. Coronagraph imagery for the second CME was not available at the time of the press. The analysis will be added later.
There are no available SDO movies showing the eruptions. Fortunately, we do have GOES-16 imagery of the second flare ready:
Solar activity is expected to be at low levels with a chance for M-class flares (R1-R2, Minor-Moderate) and a slight chance for an X-class flare (R3-Strong) through November 13 due primarily to the flare potential of Region 3141.1
Solar wind parameters, as measured by the DSCOVR spacecraft, reflected minor enhancement in the IMF in 24 hours to 12:30 UTC today. Total field ranged from 6-10 nT while the Bz component was between +8/-7 nT. Solar wind speeds were between ~300-345 km/s. Phi angle was variable.
The solar wind environment is expected to remain enhanced on November 11 and 12 due to negative polarity coronal hole high speed stream (CH HSS) activity.
The geomagnetic field was quiet to unsettled over the past 24 hours. It is expected to be quiet to active on November 11 and 12 due to CH HSS activity. Mostly quiet conditions are expected on November 13.
References:
1 Forecast Discussion Issued 2022 Nov 11 1230 UTC – Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
Featured image credit: NASA/SDO AIA131, The Watchers
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