[Ips-hf-warning] ASWFC HF DEPRESSION WARNING issued 0548 UT on 29 Oct 2023 [SEC=OFFICIAL]

[rwc]

SUBJ: ASWFC HF RADIO COMMUNICATIONS WARNING 23/106
ISSUED AT 0548UT/29 OCTOBER 2023
BY THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE.

MUFs in the southern Australian region have been depressed by 
15% during local day. Given that further geomagnetic activity 
is possible over 29-31 Oct depressions may continue over this 
period.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 29-31 OCTOBER 2023
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
_____________________________________________________________
29 Oct:  120   -15%/normal      2  4  6  8 12 12 16 22
30 Oct:  120   -15%/normal      2  4  6  8 12 12 16 22
31 Oct:  120   -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