[Ips-hf-warning] ASWFC HF DEPRESSION WARNING issued 2343 UT on 22 Feb 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC HF RADIO COMMUNICATIONS WARNING 26/24
ISSUED AT 2342UT/22 FEBRUARY 2026
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

MUFs are currently depressed by 15-25%, and are forecast to remain 
15-25% depressed over UT days 23-24 Feb due to a coronal hole 
high-speed wind stream.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 23-24 FEBRUARY 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
_____________________________________________________________
23 Feb:   60          -25%      2  4  6  8  8 12 16 16
24 Feb:   70          -15%      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