25th October

Solar activity reached high levels this period. Region 2192 (S12W27,
Fkc/beta-gamma-delta) produced a long duration X3/3f flare at 24/2141
UTC as well as a long duration C9 flare at 25/0808 UTC, which were the
largest events of the period. Region 2192 exhibited penumbral growth in
its leader spot area with umbral consolidation in its trailer spot area,
and persists as the most threatening region on the visible disk. Minor
growth was observed in the trailer spot area of Region 2195 (N08E40,
Dso/beta) and the other regions on the disk were either stable or in
decay. A narrow coronal mass ejection (CME) associated with the X3
flare was observed in SOHO LASCO C2 imagery beginning at 25/2148 UTC but
was directed well south of the Sun-Earth line. No Earth-directed CMEs
were observed this period.

Solar activity is expected to be moderate (R1-R2 (Minor-Moderate)) with
a chance for X-class (R3 or greater) flare activity over the next three
days (25-27 Oct) with Region 2192 being the likely source.

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