[ips-sf] SWS Summary Forecast for 21 February - issued 2328UT/20-Feb-2017 [SEC=UNCLASSIFIED]

[rwc]

Solar activity was at very low levels on UT day 20 February. A
recurrent coronal hole is expected to start strengthening solar wind
stream from 22 February. Very low levels of solar activity may be
expected for the next 3 days (21-23 February) with a slight chance of
C-class flares. Geomagnetic activity was mostly quiet with some
unsettled periods across the Australian region on UT day 20 February.
Mostly quiet geomagnetic conditions with some unsettled periods may be
expected on 21 February. Geomagnetic activity may rise to Active
levels on 22 and 23 February due to the expected effect of another
coronal hole. MUFs were mostly near predicted monthly values during UT
day 20 February. Nearly similar HF conditions may be expected on 21
February. Minor to moderate MUF depressions and degradations in HF
conditions may be expected on 22 and 23 February due to expected rises
in geomagnetic activity levels on these days.

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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