[Ips-hf-warning] ASWFC HF DEPRESSION WARNING issued 0739 UT on 07 Aug 2023 [SEC=OFFICIAL]

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SUBJ: ASWFC PRELIMINARY HF RADIO COMMUNICATIONS WARNING 23/77
ISSUED AT 0739UT/07 AUGUST 2023
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

Mild depressions are possible, particularly in the southern Australian 
region, over 8-9 Aug due to anticipated geomagnetic activity 
from a pair of CMEs estimated to impact on 8-Aug.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 08-09 AUGUST 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