[ips-sf] SWS Summary Forecast for 18 August - issued 2335UT/17-Aug-2017 [SEC=UNCLASSIFIED]

[rwc]

Solar activity was very low over the last 24 hours. Solar wind speeds
are expected to remain elevated for 18-20 August due to the effect of
a coronal hole. Very low to low solar activity is expected over the
next three days (18 to 20 August). Quiet to active levels of
geomagnetic conditions with isolated minor storm periods, were
observed across the Australian region for the past 24 hours.
Geomagnetic activity for 18 and 19 August is expected to be mostly at
unsettled to active levels with possible minor storm periods.
Geomagnetic activity may then gradually decline to unsettled to active
levels through 20 August. HF conditions were at normal levels on 17
August with minor to moderate MUF enhancement periods. Mild to
moderate MUF depressions and degradations in HF conditions may be
expected on 18 and 19 August. HF conditions are expected to stay at
normal levels on 20 August.

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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