[Ips-hf-warning] IPS HF COMMS WARNING

[rwc]

SUBJ: IPS PRELIMINARY HF RADIO COMMUNICATIONS WARNING 01/36
ISSUED AT 03/0641Z AUGUST 2001
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

A WEAK SHOCK OF AROUND 60KM/SEC IN THE SOLAR WIND WAS 
OBSERVED AT 0624UT ON 03 AUG. SHOCK BELIEVED DUE
TO DISAPPEARING SOLAR FILAMENTS ON 30-31 JULY.

DEGRADED HF PROPAGATION CONDITIONS NOW EXPECTED.
DEPRESSIONS POSSIBLE AFTER LOCAL DAWN 04 AUG.
FROM 03-04 AUGUST 2001
IF COMMS DIFFICULTIES EXPERIENCED TRY A LOWER FREQUENCY BAND.
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IPS Radio and Space Services      | email: asfc at ips.gov.au
PO Box 1386                       | WWW: http://www.ips.gov.au/asfc
Haymarket NSW 1240  AUSTRALIA     | FTP: ftp://ftp.ips.gov.au/users/asfc/ 
tel: +61 2 9213 8010              | fax: +61 2 9213 8060