[Ips-hf-warning] IPS HF COMMS WARNING

[rwc]

SUBJ: IPS HF RADIO COMMUNICATIONS WARNING 01/01
ISSUED AT 22/2318Z JANUARY 2001
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

DEPRESSED CONDITIONS ARE EXPECTED FOLLOWING
THE ANTICIPATED ARRIVAL OF CMES ASSOCIATED
WITH THE M1.2 AND M7.7 FLARES OBSERVED ON
20 JAN.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 23-24 JANUARY 2001
IF COMMS DIFFICULTIES EXPERIENCED TRY A LOWER FREQUENCY BAND
-------------------------------------------------------------
SOLAR ACTIVITY FORECAST       HF COMMS FADEOUTS             
23 Jan:  low to moderate      Possible             
24 Jan:  low to moderate      Possible             

HF COMMUNICATIONS FORECAST (AUSTRALIAN/NEW ZEALAND REGION)
                                   FREQUENCY BANDS  
       T-index  MUFs          2  4  6  8 12 16 22 26
-------------------------------------------------------------
23 Jan    80     -12%         2  4  6  8 12 16 16 22 
24 Jan   120   normal         2  4  6  8 12 16 22 26 

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