HF Fadeout Warning

(last updated 10 Jan 2026 00:40 UT)

SUBJ: ASWFC HF RADIO COMMUNICATIONS WARNING 26/04 ISSUED AT 0405UT/09 JANUARY 2026 BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE. Ongoing flare activity from solar active regions AR4334 and AR4336 suggests an ongoing risk of M‑class flares over the next two days. DEGRADED HF PROPAGATION CONDITIONS EXPECTED FROM 09-10 JANUARY 2026 IF COMMS DIFFICULTIES EXPERIENCED TRY A HIGHER FREQUENCY BAND _____________________________________________________________ SOLAR ACTIVITY FORECAST HF COMMS FADEOUTS 09 Jan: R1, chance R2 Possible 10 Jan: R1, chance R2 Possible