[Ips-hf-warning] ASWFC HF SHORTWAVE FADEOUT WARNING issued 0129 UT on 03 Jul 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC HF RADIO COMMUNICATIONS WARNING 26/61
ISSUED AT 0129UT/03 JULY 2026
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

Three large, magnetically complex sunspot regions visible on 
the solar disk have produced M-class flares over the past 48 
hours. Further flare activity is expected over the coming days, 
with shortwave fadeouts possible.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 03-04 JULY 2026
IF COMMS DIFFICULTIES EXPERIENCED TRY A HIGHER FREQUENCY BAND
_____________________________________________________________

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