[ips-sf] IPS Summary Forecast for 25 January - issued 2334UT/24-Jan-2015

rwc rwc at ips.gov.au
Sun Jan 25 10:34:20 EST 2015

Active Region (AR) 2268 contains the largest sunspot group on the
visible solar disk. AR 2268 produced three minor C class X-ray flares
during Jan 25 UT. The largest event was a C2.0 flare peaking at 07:40
UT. A significant M class flare may occur during Jan 25-26. Stereo
extreme ultraviolet images of far side activity suggest a significant
increase in solar activity next week. Hydrogen alpha solar telescope
images currently show a dark filament (solar prominence) rotating
through the geo-effective region of the solar disk. This feature will
be monitored in case it erupts toward Earth. The solar wind speed
declined to about 350 km/s during Jan 24 and is presently fluctuating
in the range 350-400 km/s. Geomagnetic conditions were mostly quiet in
the Australian region during Jan 24. Australian region HF propagation
conditions are expected to be moderately depressed at some stations,
and near normal at others, during Jan 25.

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