[Ips-hf-warning] ASWFC HF DEPRESSION WARNING issued 0421 UT on 07 Feb 2023 [SEC=OFFICIAL]

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SUBJ: ASWFC HF RADIO COMMUNICATIONS WARNING 23/13
ISSUED AT 0419UT/07 FEBRUARY 2023
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

Following recent mild geomagnetic activity, Southern Australian 
maximum useable frequencies (MUFs) are depressed by 10-20%. MUFs 
are expected to gradually recover throughout the UT day.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FOR 07 FEBRUARY 2023
IF COMMS DIFFICULTIES EXPERIENCED TRY A LOWER FREQUENCY BAND
_____________________________________________________________

HF COMMUNICATIONS FORECAST (AUSTRALIAN/NEW ZEALAND REGION)
                                   FREQUENCY BANDS
       T-index      MUFs        2  4  6  8 12 16 22 26
_____________________________________________________________
07 Feb:   45      -10-20%       2  4  6  8 12 16 16 22

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