[Ips-hf-warning] ASWFC HF DEPRESSION WARNING issued 0726 UT on 09 Aug 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC HF RADIO COMMUNICATIONS WARNING 26/70
ISSUED AT 0726UT/09 AUGUST 2026
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

Recent geomagnetic activity has resulted in > 15% depressions 
in the southern Australian region. These may continue into 10-Aug.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 09-10 AUGUST 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
_____________________________________________________________
09 Aug:   30          -17%      2  4  6  8  8 12 16 22
10 Aug:   30          -17%      2  4  6  8  8 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