[Ips-hf-warning] ASWFC HF SHORTWAVE FADEOUT WARNING issued 2141 UT on 18 Nov 2023 [SEC=OFFICIAL]

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SUBJ: ASWFC HF RADIO COMMUNICATIONS WARNING 23/114
ISSUED AT 2140UT/18 NOVEMBER 2023
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

A sunspot region is currently rotating onto the solar disk from 
the northeastern limb that has produced R1 level solar flares. 
R1 level radio blackouts are possible over 19-21 Nov due to this 
region's solar flares.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 19-20 NOVEMBER 2023
IF COMMS DIFFICULTIES EXPERIENCED TRY A HIGHER FREQUENCY BAND
_____________________________________________________________

SOLAR ACTIVITY FORECAST       HF COMMS FADEOUTS
19 Nov:  R0-R1                Possible
20 Nov:  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