[ips-sf] SWS Summary Forecast for 13 December - issued 2334UT/12-Dec-2016 [SEC=UNCLASSIFIED]

[rwc]

AR 2617 is the only sunspot region located on the visible solar disk.
This region is located in the NW quadrant and it is small and
relatively inactive. Solar flare activity was very low during 12 Dec
UT and it is expected to remain very low during the next 3 days. The
solar wind speed is currently about 520 km/s and it is expected to
decline towards slow wind values during the next 3 days. Geomagnetic
conditions were quiet during 12 Dec and they are expected to remain
quiet during the next 3 days. Conditions for HF radio wave propagation
were depressed in the Southern Hemisphere during 12 Dec UT. Conditions
are expected to trend back towards predicted monthly values during the
next 3 days. HF users are advised to use frequencies lower than the
predicted monthly values. Mid-latitude sporadic E layers are prevalent
on an almost daily basis.

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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