[Ips-hf-warning] ASWFC HF DEPRESSION WARNING issued 2222 UT on 03 Apr 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC HF RADIO COMMUNICATIONS WARNING 26/33
ISSUED AT 2221UT/03 APRIL 2026
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

Maximum Usable Frequencies (MUFs) in the Southern Australian 
Region continue to be up to 30% depressed due to ongoing Geomagnetic 
activity, which is expected to continue over the next 24 hours. 
MUFs in the Northern Australian region are currently near predicted 
monthly values.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 04-05 APRIL 2026
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
_____________________________________________________________
04 Apr:   50   -30%/normal      2  4  6  6  8 12 16 16
05 Apr:   65   -15%/normal      2  4  6  8 12 12 16 22

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