[Ips-hf-warning] ASWFC HF SHORTWAVE FADEOUT WARNING issued 0049 UT on 05 Nov 2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC HF RADIO COMMUNICATIONS WARNING 25/101
ISSUED AT 0048UT/05 NOVEMBER 2025
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

Active region AR4274 has produced multiple M- and X-class flares 
over the last 48 hours. An additional X-class flare has been 
associated with a region that is soon to rotate onto the visible 
disk. Further R2-R3 level flares are expected over the next 48 
hours, with shortwave fadeouts probable.

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

SOLAR ACTIVITY FORECAST       HF COMMS FADEOUTS
05 Nov:  R2-R3                Probable
06 Nov:  R2-R3                Probable
07 Nov:  R2-R3                Probable

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