[Ips-hf-warning] IPS HF COMMS WARNING

[rwc]

SUBJ: IPS HF RADIO COMMUNICATIONS WARNING 01/54
ISSUED AT 03/0111Z OCTOBER 2001
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

DEPRESSED/DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 03-04 OCTOBER 2001 SOUTHERN REGION AUS/NZ ONLY.

SOUTHERN REGION MUFS DEPRESSED 20% AFTER LOCAL DAWN THIS
MORNING.

NORTHERN REGION AUS MUFS NEAR TO ABOVE NORMAL. HF
COMMUNICATORS WITHIN THIS REGION SHOULD USE A T INDEX 
OF 140.

IF COMMS DIFFICULTIES EXPERIENCED TRY A LOWER FREQUENCY BAND
FOLLOW ON HF WARNING FROM HF WARNING: 52
-------------------------------------------------------------
SOLAR ACTIVITY FORECAST       HF COMMS FADEOUTS             
03 Oct:  moderate to high     Probable             
04 Oct:  Moderate             Possible             

HF COMMUNICATIONS FORECAST (SOUTHERN AUSTRALIAN/NEW ZEALAND REGION)
                                   FREQUENCY BANDS  
       T-index  MUFs          2  4  6  8 12 16 22 26
-------------------------------------------------------------
3 Oct   80    -20%/normal    2  4  6  8  8 12 16 16 
4 Oct  100    -15%/normal    2  4  6  8 12 12 16 22 


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