[Ips-hf-warning] ASWFC HF SHORTWAVE FADEOUT WARNING issued 2228 UT on 03 Nov 2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC HF RADIO COMMUNICATIONS WARNING 25/100
ISSUED AT 2227UT/03 NOVEMBER 2025
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

Newly numbered AR4274 recently rotated over the eastern limb 
and is likely the recurrence of previously flare active region 
AR4246. This region has already produced multiple flares at R1-R2 
levels. Shortwave fadeouts are probable.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 03-05 NOVEMBER 2025
IF COMMS DIFFICULTIES EXPERIENCED TRY A HIGHER FREQUENCY BAND
_____________________________________________________________

SOLAR ACTIVITY FORECAST       HF COMMS FADEOUTS
03 Nov:  R1-R2                    Probable
04 Nov:  R1-R2                    Probable
05 Nov:  R1-R2                    Probable

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