[Ips-hf-warning] IPS HF COMMS WARNING
rwc at ips.gov.au
Thu Oct 23 09:33:52 EST 2003
SUBJ: IPS PRELIMINARY HF RADIO COMMUNICATIONS WARNING 03/74
ISSUED AT 22/2329Z OCTOBER 2003
BY THE AUSTRALIAN SPACE FORECAST CENTRE.
LOWER THAN NORMAL MUFS MAY BE EXPERIENCED IN
SOUTHERN REGION AUS/NZ THIS MORNING. RECENT
DEPRESSIONS WERE DUE TO SOLAR CORONAL HOLE
WIND STREAM INDUCED ACTIVITY. THE EARTH HAS
NOW LEFT THIS WIND STREAM AND THIS MORNING
DEPRESSIONS ARE NOT EXPECTED TO PERSIST.
HOWEVER DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 24-25 OCTOBER 2003 IN ASSOCIATION WITH
ANTICIPATED GEOMAGNETIC ACTIVITY FROM EXPECTED
CORONAL MASS EJECTION ARRIVAL. GENERAL DEPRESSION EXPECTED.
IF COMMS DIFFICULTIES EXPERIENCED TRY A LOWER FREQUENCY BAND
A MORE DETAILED HF WARNING WILL FOLLOW IF DEPRESSIONS EVENTUATE.
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.
More information about the ips-hf-warning