[Ips-hf-warning] ASWFC HF DEPRESSION WARNING issued 0024 UT on 10 Nov 2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC PRELIMINARY HF RADIO COMMUNICATIONS WARNING 25/106
ISSUED AT 0024UT/10 NOVEMBER 2025
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

An anticipated CME arrival on 11-Nov is expected to produce G3 
geomagnetic conditions, which may lead to HF depressions in the 
Australian region, with stronger depressions expected at higher 
latitudes.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 11-12 NOVEMBER 2025
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