Dear Collaborators,
Solar activity has been elevated to a high level since the last message due to a chain of major flares from NOAA 14087. The largest event was an X2.7 flare at 08:04 UT today (5/14) followed by an M7.7 at 11:04 UT. NOAA 14087 produced two more M class and a few C class flares today. Yesterday's target NOAA 14086, the source region of an X1.2 flare yesterday, has completed the West limb passage with no flare reported today.
Today we will continue the Major Flare Watch campaign, with the target switched to NOAA 14087. This region is still close to the limb to figure out its magnetic configuration, but the area of trailing sunspots appear to have mixed polarities and was a source region of the recent X2.7 and M7.7 events. We will observe the area of trailing sunspots of NOAA 14087 in the next 24 to 48 hours. Additional M class events or larger are expected.
The position of the target in NOAA 14087 on 14-May-2025 at 15:30 UT is: N17E61 (-795", 303").
See http://www.SolarMonitor.org for images and http://solar.physics.montana.edu/max_millennium/ops/observing.shtml for a description of the current Max Millennium Observing Plan.
Regards, Aki Takeda (Montana State University)
mmmotd@solar.physics.montana.edu