[ips-sf] IPS Summary Forecast for 19 May - issued 2334UT/18-May-2014

rwc rwc at ips.gov.au
Mon May 19 09:34:27 EST 2014

The 10.7 cm solar radio flux and international sunspot number are
presently trending downward. Solar flare activity was low during 18
May and is expected to remain low during the next 48 hours. Solar
Active Region (AR) 2056 produced a long duration (almost 3 hour) C3.8
class X-ray flare peaking at 06:54 UT. AR 2056 was located on the
western limb and the associated narrow Coronal Mass Ejection (CME)
will not impact Earth. GONG H alpha solar patrol images show a dark
filament (prominence) located in the Northern Hemisphere, just west of
the central meridian. The filament is presently stable but is worth
watching closely in case it ejects into Earthward directed solar wind.
The solar wind speed is still light and steady near 350 km/s.
Geomagnetic conditions have been quiet and are expected to remain
quiet during the next 48 hours. Conditions for HF radio communication
have been close to predicted monthly values, but mildly depressed in
the Western Australia region, especially during the night.

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