[Ips-hf-warning] ASWFC HF SHORTWAVE FADEOUT WARNING issued 1208 UT on 20 Aug 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC HF RADIO COMMUNICATIONS WARNING 26/74
ISSUED AT 1207UT/20 AUGUST 2026
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

A new sunspot region is currently rotating into view and has 
produced an R2 level radio blackout. Further R1-R2 events are 
possible in the next day.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 20-21 AUGUST 2026
IF COMMS DIFFICULTIES EXPERIENCED TRY A HIGHER FREQUENCY BAND
_____________________________________________________________

SOLAR ACTIVITY FORECAST       HF COMMS FADEOUTS
20 Aug:  R0-R1, chance R2      Possible
21 Aug:  R0-R1, chance R2      Possible

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