[Ips-hf-warning] ASWFC HF SHORTWAVE FADEOUT WARNING issued 2340 UT on 22 Sep 2023 [SEC=OFFICIAL]

[rwc]

SUBJ: ASWFC HF RADIO COMMUNICATIONS WARNING 23/98
ISSUED AT 2340UT/22 SEPTEMBER 2023
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

Several sunspots on the solar disk have grown in complexity recently. 
R1-R2 solar flares are likely, with a chance for R3.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 23-25 SEPTEMBER 2023
IF COMMS DIFFICULTIES EXPERIENCED TRY A HIGHER FREQUENCY BAND
_____________________________________________________________

SOLAR ACTIVITY FORECAST       HF COMMS FADEOUTS
23 Sep:  R1-R2, chance R3     Probable
24 Sep:  R1-R2, chance R3     Probable
25 Sep:  R1-R2, chance R3     Probable

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