[Ips-hf-warning] ASWFC HF SHORTWAVE FADEOUT WARNING issued 0325 UT on 18 Oct 2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC HF RADIO COMMUNICATIONS WARNING 25/95
ISSUED AT 0324UT/18 OCTOBER 2025
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

AR4246 has continued to produce consistent R1 level flares. Shortwave 
fadeouts are probable.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 18-19 OCTOBER 2025
IF COMMS DIFFICULTIES EXPERIENCED TRY A HIGHER FREQUENCY BAND
_____________________________________________________________

SOLAR ACTIVITY FORECAST       HF COMMS FADEOUTS
18 Oct:  R1-R2                    Probable
19 Oct:  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