HF Communications Warning

(last updated 15 Jun 2025 05:40 UT)
SUBJ: ASWFC HF RADIO COMMUNICATIONS WARNING 25/64 ISSUED AT 2337UT/14 JUNE 2025 BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE. For 15-Jun MUFs in the Australian region are generally expected to be initially depressed 15-25%, gradually recovering during the day as recent geomagnetic activity has now declined. DEGRADED HF PROPAGATION CONDITIONS EXPECTED FOR 15 JUNE 2025 IF COMMS DIFFICULTIES EXPERIENCED TRY A LOWER FREQUENCY BAND _____________________________________________________________ HF COMMUNICATIONS FORECAST (AUSTRALIAN/NEW ZEALAND REGION) FREQUENCY BANDS T-index MUFs 2 4 6 8 12 16 22 26 _____________________________________________________________ 15 Jun: 80 -20%/normal 2 4 6 8 8 12 16 16
Please note this icon refers to any current HF Depression Warning. For HF Fadeout Warnings, see here.