[Ips-hf-warning] ASWFC HF DEPRESSION WARNING issued 0324 UT on 13 Feb 2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC PRELIMINARY HF RADIO COMMUNICATIONS WARNING 25/21
ISSUED AT 0324UT/13 FEBRUARY 2025
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

A large coronal hole is expected to produce geomagnetic activity 
over 13-15 Feb which may lead to mild depressions in HF communications.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 14-15 FEBRUARY 2025
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