[ips-sf] SWS Summary Forecast for 22 October - issued 2328UT/21-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 (22, 23
and 24 October) with some chance of C-class activity. The effect of a
positive polarity coronal hole is expected to strengthen the solar
wind stream from late on 22 October for the next few days. Geomagnetic
activity stayed mostly at Quiet levels on most locations today (UT day
21 October). Geomagnetic activity is expected to be mostly at Quiet
levels during the first half of 22 October. The effect of a coronal
hole may raise the geomagnetic activity to unsettled and possibly
active levels late on 22 October and up to minor storm levels on 23
and 24 October. Mainly due to low levels of ionising radiation, minor
to moderate MUF depressions were observed today (UT day 21 October).
Nearly similar conditions may be expected during most parts of UT day
22 October. Minor to significant MUF depressions may be expected on 23
and 24 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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