[ips-sf] SWS Summary Forecast for 17 December - issued 2332UT/16-Dec-2016 [SEC=UNCLASSIFIED]

rwc rwc at ips.gov.au
Sat Dec 17 10:32:37 EST 2016

The visible solar disk is almost spotless. The daily sunspot number is
currently about 8, but should start to increase next week. Solar flare
activity was very low during 16 Dec UT and it is expected to remain
very low during the next 3 days. There are currently no Earthward
directed CMEs. Geomagnetic conditions are expected to remain mostly
quiet during the next 2 days. Reoccurrent Coronal Hole 779 will impact
Earth next week, producing minor and possibly major storm intervals.
Conditions for HF radio wave propagation were strongly depressed
throughout the Australian region during 16 Dec UT. The strong
depressions seem unrelated to recent geomagnetic activity and are
likely to continue in coming days. Lowering the operating frequency
may result in propagation via sporadic E layers when present.

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 

IMPORTANT: This e-mail, including any attachments, may contain,
confidential or copyright information.  The views expressed in 
this message are those of the individual sender, unless 
specifically stated to be the views of SWS.  If you are not 
the intended recipient, please contact the sender immediately 
and delete all copies of this e-mail and attachments. 
To unsubscribe from an IPS mail list either send an email to 
"MAIL_LIST"-leave at ips.gov.au or go to
Information about training can be obtained from
General information is available from

More information about the ips-sf mailing list