[Ips-hf-warning] ASWFC HF COMMS WARNING issued 0610 UT on 08 Dec 2022 [SEC=OFFICIAL]

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SUBJ: ASWFC HF RADIO COMMUNICATIONS WARNING 22/98
ISSUED AT 0607UT/08 DECEMBER 2022
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

Ionospheric conditions have been variable on UT day 08-Dec with 
south eastern Australian stations becoming depressed by up to 
20% at times so far today. Western Australian region and northern 
Australian region MUFs were initially depressed 15-20% early in 
the UT day and are currently near normal.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FOR 08 DECEMBER 2022
IF COMMS DIFFICULTIES EXPERIENCED TRY A LOWER FREQUENCY BAND
_____________________________________________________________

HF COMMUNICATIONS FORECAST (SOUTHERN AUSTRALIAN/NEW ZEALAND REGION)
  Southern Aus. region only         FREQUENCY BANDS
       T-index      MUFs        2  4  6  8 12 16 22 26
_____________________________________________________________
08 Dec:  45         -20%        2  4  6  8  8 12 16 16

Australian Space Weather Forecasting Centre
Bureau of Meteorology
ASWFC at bom.gov.au
www.bom.gov.au | www.sws.bom.gov.au