[ips-sf] SWS Summary Forecast for 15 December - issued 2333UT/14-Dec-2016 [SEC=UNCLASSIFIED]

rwc rwc at ips.gov.au
Thu Dec 15 10:33:48 EST 2016

Solar Active Region 2617 is located on the north west limb and will
soon disappear from view. The visible solar disk is almost spotless.
The daily sunspot number is currently only 5, but should increase as
new spots form or rotate into view next week. Solar flare activity was
very low during 14 Dec UT and it is expected to remain very low during
the next 3 days. Small equatorial coronal hole CH 778 may become
geoeffective late today, 15 Dec, or during 16 Dec UT. The solar wind
speed is currently about 450 km/s and may increase briefly under the
influence of CH 778. Geomagnetic conditions are expected to be mostly
quiet during 15 Dec, with the possibility of unsettled intervals
during late 15 Dec and during 16 Dec. Conditions for HF radio wave
propagation strengthened throughout the Australian region during 14
Dec. They were enhanced at low latitude locations including Cocos
Island and Darwin, but depressed at most mid-latitude locations.

Space Weather Services              email: asfc at bom.gov.au
Bureau of Meteorology
PO Box 1386                         WWW: http://www.sws.bom.gov.au
Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp-out.sws.bom.gov.au
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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