[Ips-hf-warning] ASWFC HF DEPRESSION WARNING issued 2259 UT on 02 Apr 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC HF RADIO COMMUNICATIONS WARNING 26/32
ISSUED AT 2259UT/02 APRIL 2026
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

Southern Australian region MUFs are depressed by 30% after local 
dawn this morning following overnight geomagnetic activity induced 
by a coronal hole. Northern Australian region MUFs after local 
dawn this morning are currently near predicted monthly values.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FOR 03 APRIL 2026
IF COMMS DIFFICULTIES EXPERIENCED TRY A LOWER FREQUENCY BAND
_____________________________________________________________

HF COMMUNICATIONS FORECAST (SOUTHERN AUSTRALIAN/NEW ZEALAND REGION)
                                   FREQUENCY BANDS
       T-index      MUFs        2  4  6  8 12 16 22 26
_____________________________________________________________
03 Apr:   50   -30%/normal      2  4  6  6  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