[Ips-hf-warning] ASWFC HF DEPRESSION WARNING issued 0005 UT on 23 Oct 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC HF RADIO COMMUNICATIONS WARNING 26/92
ISSUED AT 0004UT/23 OCTOBER 2026
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

Maximum usable frequencies in the southern Australian region 
have experienced sustained depressions of 15%. These depressions 
may persist over UT day 23-Oct.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FOR 23 OCTOBER 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 Oct:   28          -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