[Ips-hf-warning] ASWFC HF DEPRESSION WARNING issued 2341 UT on 09 May 2023 [SEC=OFFICIAL]

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SUBJ: ASWFC PRELIMINARY HF RADIO COMMUNICATIONS WARNING 23/45
ISSUED AT 2340UT/09 MAY 2023
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

MUF depressions are anticipated over 11-12 May due to geomagnetic 
activity caused by a recent CME impact and an anticipated impact 
on 11-May from a CME first observed on 9-May.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 11-12 MAY 2023
IF COMMS DIFFICULTIES EXPERIENCED TRY A LOWER FREQUENCY BAND
A MORE DETAILED HF WARNING WILL FOLLOW IF DEPRESSIONS EVENTUATE.
_____________________________________________________________

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