[Ips-hf-warning] ASWFC HF SHORTWAVE FADEOUT WARNING issued 0217 UT on 30 Apr 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC HF RADIO COMMUNICATIONS WARNING 26/44
ISSUED AT 0217UT/30 APRIL 2026
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

Solar flare activity is expected to be at the R1 level over 30-Apr 
to 02-May, with a chance of R2 due to the complexity of regions 
4420 and 4424. Shortwave fadeouts are possible.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 30 APRIL 2026 TO 02 MAY 2026
IF COMMS DIFFICULTIES EXPERIENCED TRY A HIGHER FREQUENCY BAND
_____________________________________________________________

SOLAR ACTIVITY FORECAST       HF COMMS FADEOUTS
30 Apr:  R1, chance of R2        Possible
01 May:  R1, chance of R2        Possible
02 May:  R1, chance of R2        Possible

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