[Ips-hf-warning] ASWFC HF SHORTWAVE FADEOUT WARNING issued 2333 UT on 04 Aug 2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC HF RADIO COMMUNICATIONS WARNING 25/73
ISSUED AT 2332UT/04 AUGUST 2025
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

R1, chance R2 due to AR4168's recent M2.0 flare at 04/0457UT 
and increasing magnetic complexity.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 05-07 AUGUST 2025
IF COMMS DIFFICULTIES EXPERIENCED TRY A HIGHER FREQUENCY BAND
_____________________________________________________________

SOLAR ACTIVITY FORECAST       HF COMMS FADEOUTS
05 Aug:  R1, chance R2        Probable
06 Aug:  R1, chance R2        Probable
07 Aug:  R1, chance R2        Probable

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