[Ips-hf-warning] ASWFC HF COMMS WARNING issued 2323 UT on 30 Nov 2022 [SEC=OFFICIAL]

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SUBJ: ASWFC HF RADIO COMMUNICATIONS WARNING 22/93
ISSUED AT 2323UT/30 NOVEMBER 2022
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

An equatorial coronal hole is causing an increase in geomagnetic 
activity which is expected to cause MUF depressions in the Australian 
region.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 01-03 DECEMBER 2022
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
_____________________________________________________________
01 Dec:   35          -11%      2  4  6  8 12 16 16 22
02 Dec:   40   normal/-15%      2  4  6  8 12 12 16 22
03 Dec:   45   normal/-15%      2  4  6  8 12 12 16 22

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