[ips-sf] IPS Summary Forecast for 15 June - issued 2338UT/14-Jun-2013

rwc rwc at ips.gov.au
Sat Jun 15 09:38:49 EST 2013

Earthward directed solar activity has been changing between moderately
active conditions and unusually quiet conditions throughout this
relatively weak solar maximum. Three geomagnetic storms occurred
during May 24 to June 8, but then the number of sunspots decreased to
low levels and the X-ray flux declined. However, this is short-term
variability in the context of broader solar maximum conditions. There
are presently 3 solar active regions with one of the sunspot groups
growing in complexity. It is also located in a fairly geo-effective
position. Elevated solar activity is possible during the next 48
hours. Increased solar wind density and speed is expected to impact
the Earth during the next 3 to 4 days. Geomagnetic conditions will
become unsettled when this happens. HF radio propagation conditions
are expected to remain near monthly predicted values. However, spread
F conditions have been occurring during the night at mid-latitude

IPS Radio and Space Services        email: asfc at ips.gov.au
PO Box 1386                         WWW: http://www.ips.gov.au
Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp.ips.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 IPS.  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