[ips-sf] SWS Summary Forecast for 24 October - issued 2329UT/23-Oct-2016 [SEC=UNCLASSIFIED]

[rwc]

Solar activity was very low over the last 24 hours. Solar activity is
expected to stay at very low levels for the next three days (24, 25
and 26 October) with some chance of C-class activity. The effect of a
positive polarity coronal hole is expected to keep the solar wind
stream strong for the next two days. Geomagnetic activity did not rise
to the expected levels today (23 October) due to weaker than expected
solar wind stream from the coronal hole and Bz not turning negative
enough. Geomagnetic activity stayed mostly at Quiet to Unsettled
levels today. Unsettled to Minor Storm levels of geomagnetic activity
on 24 and 25 October and Unsettled to Active with some possibility of
isolated Minor Storm levels on 26 October may be expected. Mainly due
to low levels of ionising radiation, minor to moderate MUF depressions
were observed today (UT day 23 October). Minor to significant MUF
depressions may be expected on 24, 25 and 26 October due to very low
levels of ionising radiation and expected rise 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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