[ips-sf] SWS Summary Forecast for 23 February - issued 2322UT/22-Feb-2017 [SEC=UNCLASSIFIED]

[rwc]

Solar activity was low on UT day 22 February. Region 2638 produced a
C4 flare that peaked at 1327 UT. A coronal hole effect is expected to
start strengthening solar wind stream from some time today (23
February) and remain effective for the following few days. Very low
levels of solar activity may be expected for the next 3 days (23-25
February) with a slight chance of C-class flares. Geomagnetic activity
was at quiet to unsettled levels across the Australian region on UT
day 22 February. The effect of the above mentioned coronal hole is
expected to raise geomagnetic activity from quiet to active levels
with the possibility of minor storm periods on 23 and 24 February.
Geomagnetic activity is expected to decline to mostly unsettled levels
on 25 February. MUFs were near predicted monthly values with periods
of mild to moderate enhancements during UT day 22 February. Minor to
moderate MUF depressions and degradations in HF conditions may be
expected from 23 to 25 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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