[Ips-hf-warning] ASWFC HF DEPRESSION WARNING issued 1047 UT on 06 Dec 2023 [SEC=OFFICIAL]

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SUBJ: ASWFC PRELIMINARY HF RADIO COMMUNICATIONS WARNING 23/127
ISSUED AT 1043UT/06 DECEMBER 2023
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

CME induced geomagnetic activity expected for 07-08 Dec has 
been reanalysed to induce G0-G1 activity with corresponding 
mild 15% ionospheric depressions now expected 
during this interval for southern Australian region only.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 07-08 DECEMBER 2023
IF COMMS DIFFICULTIES EXPERIENCED TRY A LOWER FREQUENCY BAND
A MORE DETAILED HF WARNING WILL FOLLOW IF DEPRESSIONS EVENTUATE.
_____________________________________________________________

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