[Ips-hf-warning] ASWFC HF SHORTWAVE FADEOUT WARNING issued 0747 UT on 20 Mar 2023 [SEC=OFFICIAL]

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SUBJ: ASWFC HF RADIO COMMUNICATIONS WARNING 23/31
ISSUED AT 0744UT/20 MARCH 2023
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

An R1 flare was observed at 20/0148UT. A solar region which 
is currently located in the solar south east quadrant may 
produce further isolated low level R class flares. HF fadeouts
impacting only the lower HF communication frequencies may be 
experienced at times over the next few days.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 20-22 MARCH 2023
IF COMMS DIFFICULTIES EXPERIENCED TRY A HIGHER FREQUENCY BAND
_____________________________________________________________

SOLAR ACTIVITY FORECAST       HF COMMS FADEOUTS
20 Mar:  R0-R1                Possible
21 Mar:  R0-R1                Possible
22 Mar:  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