[Ips-hf-warning] ASWFC HF SHORTWAVE FADEOUT WARNING issued 0304 UT on 07 Oct 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC HF RADIO COMMUNICATIONS WARNING 26/82
ISSUED AT 0303UT/07 OCTOBER 2026
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

Active region 4549 has produced multiple M-class flares recently 
and is a developing region with complex magnetic characteristics. 
Another region, 4545, is also moderately complex and may contribute 
to flaring activity.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 07-09 OCTOBER 2026
IF COMMS DIFFICULTIES EXPERIENCED TRY A HIGHER FREQUENCY BAND
_____________________________________________________________

SOLAR ACTIVITY FORECAST       HF COMMS FADEOUTS
07 Oct:  R0-R1                Possible
08 Oct:  R0-R1                Possible
09 Oct:  R0-R1                Possible

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