[ips-sf] IPS Summary Forecast for 14 May - issued 2341UT/13-May-2014

rwc rwc at ips.gov.au
Wed May 14 09:41:46 EST 2014

Solar activity was low during the previous 24 hours. The strongest X
ray flare was a C6.8 class event peaking at 22:24 UT. GONG Big Bear H
alpha observations detected an H alpha flare in association with AR
2056 at the same time. This region is presently located in a
geoeffective position. There is a possibility of an M class flare
during the next 3 days. Geomagnetic activity was also low and it is
expected to remain low today. The next Coronal Hole High Speed Stream
(CHHSS) is expected to impact Earth on 15 May and lead to unsettled
geomagnetic conditions. The solar wind speed arriving at Earth
steadily declined during the previous 24 hours and is presently less
than 350 km/s. The IMF has been stable and very weak, with a magnitude
mostly less than 2 nT. Conditions for HF radio propagation were
depressed at Darwin and Townsville during the night, but otherwise
near predicted monthly values for most of the Australian region.

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