[Ips-hf-warning] ASWFC HF SHORTWAVE FADEOUT WARNING issued 0441 UT on 27 Dec 2022 [SEC=OFFICIAL]

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SUBJ: ASWFC HF RADIO COMMUNICATIONS WARNING 22/105
ISSUED AT 0438UT/27 DECEMBER 2022
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

A solar region in the northeast solar quadrant produced a short 
duration R1(M2) flare at 27/0054UT. Further isolated R1 flare activity 
is possible, with corresponding HF fadeouts impacting lower 
HF frequencies on daylight HF circuits.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED 
FROM 27-29 DECEMBER 2022
IF COMMS DIFFICULTIES EXPERIENCED TRY A HIGHER FREQUENCY BAND
_____________________________________________________________

SOLAR ACTIVITY FORECAST       HF COMMS FADEOUTS
27 Dec:  R0-R1                 Possible
28 Dec:  R0-R1                 Possible
29 Dec:  R0-R1                 Possible

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