31 December

Solar activity was low. The largest event of the period was a long
duration C8 flare that appeared to originate from a region beyond the
east limb. This event was still in progress as of the writing of this
report. Region 1936 (S16W29, Eac/beta-gamma-delta) was responsible for
the majority of the other flare activity during the period. It produced
five low-level C-class flares, including a C5 flare at 31/0240 UTC. This
region continued to exhibit spot and penumbral development in its
intermediate portion, consolidation in the leader spots, and maintained
its magnetic delta configuration. Region 1934 (S17W75,
Eac/beta-gamma-delta) also maintained its weak delta configuration, but
conclusive analysis of the magnetic complexity is hindered by
foreshortening effects. Region 1938 (S09E01, Hax/alpha) was responsible
for the only other C-class flare of the period, a C2 flare, at
approximately 31/0532 UTC. Three new regions were numbered over night:
Region 1940 (S12W37, Dac/beta), Region 1941 (S13W15, Dso/beta), and
Region 1942 (N10E67, Hsx/alpha).

The leading edge of a coronal mass ejection (CME) can first be seen in
Lasco C2 imagery at approximately 31/0636 UTC, moving off the west limb.
Initial analysis indicated it originated from the area near Region 1934
at approximately 31/0532 UTC and was likely associated with the C2 flare
from Region 1938. Analysis will be conducted to determine exact origin
as well as potential Earth impacts as additional data becomes available.

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