[Ips-hf-warning] ASWFC HF SHORTWAVE FADEOUT WARNING issued 0718 UT on 30 Aug 2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC HF RADIO COMMUNICATIONS WARNING 25/78
ISSUED AT 0717UT/30 AUGUST 2025
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

A large and complex sunspot region currently facing Earth has 
high potential for solar flares. Radio blackouts at R1-R2 levels 
are possible in the next few days.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 30-31 AUGUST 2025
IF COMMS DIFFICULTIES EXPERIENCED TRY A HIGHER FREQUENCY BAND
_____________________________________________________________

SOLAR ACTIVITY FORECAST       HF COMMS FADEOUTS
30 Aug:  R1-R2                 Possible
31 Aug:  R1-R2                 Possible

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