[Ips-hf-warning] ASWFC HF SHORTWAVE FADEOUT WARNING issued 0713 UT on 29 Apr 2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC HF RADIO COMMUNICATIONS WARNING 25/42
ISSUED AT 0711UT/29 APRIL 2025
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

A solar region has rotated onto the solar disk and has produced an 
R1 flare. Further R1 flare activity is considered possible.
Fadeouts are expected to impact only the lower HF frequencies.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 29 APRIL 2025 TO 01 MAY 2025
IF COMMS DIFFICULTIES EXPERIENCED TRY A HIGHER FREQUENCY BAND
_____________________________________________________________

SOLAR ACTIVITY FORECAST       HF COMMS FADEOUTS
29 Apr:  R1                   Possible
30 Apr:  R1                   Possible
01 May:  R1                   Possible

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