[Ips-hf-warning] ASWFC HF DEPRESSION WARNING issued 2304 UT on 09 May 2024 [SEC=OFFICIAL]

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SUBJ: ASWFC PRELIMINARY HF RADIO COMMUNICATIONS WARNING 24/49
ISSUED AT 2303UT/09 MAY 2024
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

Due to several recent halo CMEs that are expected to arrive in 
the coming days, geomagnetic activity is expected over 10-12 
May. Degraded HF radio conditions are expected over this period 
as well as depressions to maximum usable frequencies around 20-40%. 
High latitudes are expected to be impacted the most.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 10-12 MAY 2024
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