[ips-sf] SWS Summary Forecast for 12 September - issued 2339UT/11-Sep-2018 [SEC=UNCLASSIFIED]

[rwc]

Solar activity was Very Low today, UT day 11 September. For the next
three UT days, 12-14 September, solar activity is expected to remain
at Very Low levels. Mostly Quiet to Active geomagnetic conditions with
some Minor Storm periods were observed over the Australian region
today. Geomagnetic conditions are expected to stay mostly at Active to
Minor storm levels on UT day 12 September, and at Unsettled to Active
levels on 13 September. Geomagnetic conditions are then expected to
gradually decline to Active and then to Unsettled and Quiet levels
through 14 September. Auroras may be observed at high latitudes under
good observing conditions on UT day 12 September. Mostly normal HF
conditions were observed today with periods of minor to mild MUF
enhancements in some low and mid latitude regions. Minor to moderate
MUF depressions and degradations in HF conditions may be expected on
UT days 12 and 13 September due to the continued increased geomagnetic
activity on these days. HF conditions may start turning back to normal
from UT day 14 September.

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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