[Ips-hf-warning] ASWFC HF SHORTWAVE FADEOUT WARNING issued 2133 UT on 03 Aug 2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC HF RADIO COMMUNICATIONS WARNING 25/72
ISSUED AT 2129UT/03 AUGUST 2025
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

AR4168 recently developed a beta-gamma-delta magnetic complexity 
and produced an R1 level flare at 03/1357UT. Shortwave fadeouts 
are possible.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 04-06 AUGUST 2025
IF COMMS DIFFICULTIES EXPERIENCED TRY A HIGHER FREQUENCY BAND
_____________________________________________________________

SOLAR ACTIVITY FORECAST       HF COMMS FADEOUTS
04 Aug:  R0-R1                    Possible
05 Aug:  R0-R1                    Possible
06 Aug:  R0-R1                    Possible

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