[Ips-hf-warning] ASWFC HF DEPRESSION WARNING issued 0712 UT on 31 Aug 2023 [SEC=OFFICIAL]

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SUBJ: ASWFC PRELIMINARY HF RADIO COMMUNICATIONS WARNING 23/84
ISSUED AT 0711UT/31 AUGUST 2023
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

Geomagnetic is anticipated over UT days 02-03 Sep, causing ionospheric 
depressions up to 15-20% over 03-04 Sep.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 03-04 SEPTEMBER 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