[Ips-hf-warning] IPS HF COMMS WARNING

[rwc]

SUBJ: IPS PRELIMINARY HF RADIO COMMUNICATIONS WARNING 01/20
ISSUED AT 06/2251Z APRIL 2001
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

Degraded HF conditions are expected for 8 to 10 Apr
following the anticipated arrival of two successive
shocks associated to the recent energetic flare and CME
activity from region 9415.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 08-10 APRIL 2001
IF COMMS DIFFICULTIES EXPERIENCED TRY A LOWER FREQUENCY BAND
A MORE DETAILED HF WARNING WILL BE ISSUED CLOSER TO THE DATE
OF THE DISTURBANCE
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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