[ips-sf] IPS Summary Forecast for 11 May - issued 2331UT/10-May-2015

rwc rwc at ips.gov.au
Mon May 11 09:31:01 EST 2015

Solar flare activity was low during 10 May UT. Active Region (AR) 2339
continued to produce C class flares. AR 2339 is spreading in longitude
and will rotate through the geoeffective zone later this week. No new
CMEs were launched during 10 May. Geomagnetic conditions were
unsettled during 10 May, probably due to the arrival of a slow, weak
CME associated with the filament eruption on 6 May. A minor
geomagnetic storm may occur during early 11 May. A minor geomagnetic
storm may occur during 12-13 May due to the arrival of a Co-rotating
Interaction Region (CIR) ahead of fast solar wind. The three day
outlook is for unsettled to minor storm conditions. Conditions for HF
radio propagation are expected to remain near predicted monthly
values. However, positive and negative effects will occur if a minor
geomagnetic storm eventuates.

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