[Ips-hf-warning] ASWFC HF DEPRESSION WARNING issued 2314 UT on 13 Jun 2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC HF RADIO COMMUNICATIONS WARNING 25/63
ISSUED AT 2312UT/13 JUNE 2025
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

Southern Australian region MUFs are depressed 15-30% after local 
dawn this morning. Northern Australian region MUFs are near predicted 
monthly values to 15% enhanced. Southern Australian region MUFs 
are expected to remain depressed during the local day today.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FOR 14 JUNE 2025 FOR SOUTHERN AUS/NZ REGION ONLY.
IF COMMS DIFFICULTIES EXPERIENCED TRY A LOWER FREQUENCY BAND
_____________________________________________________________

HF COMMUNICATIONS FORECAST (SOUTHERN AUSTRALIAN/NEW ZEALAND REGION ONLY)
                                   FREQUENCY BANDS
       T-index         MUFs     2  4  6  8 12 16 22 26
_____________________________________________________________
14 Jun:   50          -20%      2  4  6  8  8 12 16 16

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