[Ips-hf-warning] ASWFC HF SHORTWAVE FADEOUT WARNING issued 2143 UT on 18 Dec 2022 [SEC=OFFICIAL]

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SUBJ: ASWFC HF RADIO COMMUNICATIONS WARNING 22/101
ISSUED AT 2140UT/18 DECEMBER 2022
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

A sequence of spots continues to rotate onto 
the solar disk over the northeast solar limb. 
Solar flare activity may increase in coming days.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 19-21 DECEMBER 2022
IF COMMS DIFFICULTIES EXPERIENCED TRY A HIGHER FREQUENCY BAND
_____________________________________________________________

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