[Ips-hf-warning] ASWFC HF DEPRESSION WARNING issued 0103 UT on 15 Apr 2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC PRELIMINARY HF RADIO COMMUNICATIONS WARNING 25/38
ISSUED AT 0103UT/15 APRIL 2025
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

Degraded HF communications conditions are expected for the southern 
Australian region from late in the UT day on 15-Apr to 17-Apr, 
due to an expected increase in geomagnetic activity during this 
period, associated with recent coronal mass ejections.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 16-17 APRIL 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