[Ips-hf-warning] IPS HF COMMS WARNING

[rwc]

SUBJ: IPS HF RADIO COMMUNICATIONS WARNING 02/78
ISSUED AT 19/2342Z DECEMBER 2002
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

MILDLY DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FOR FIRST HALF 20 DECEMBER 2002  SOUTHERN REGION ONLY
FOLLOWING CORONAL HOLE INDUCED OVERNIGHT GEOMAGNETIC ACTIVITY.

IF COMMS DIFFICULTIES EXPERIENCED TRY A LOWER FREQUENCY BAND
FOLLOW ON HF WARNING FROM HF WARNING: 77
_____________________________________________________________

SOLAR ACTIVITY FORECAST       HF COMMS FADEOUTS             
20 Dec:  moderate             Probable             

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


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