[Ips-dhfpr] ASWFC Daily HF Prop Report - 24 September 26 issued 2332 UT on 24 Sep 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/24 SEPTEMBER 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (24 SEPTEMBER) 
Date   T index  Conditions    
24 Sep    76    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Enhanced by 20% during local day.
      Near predicted monthly values during local night.
      Enhanced by 20% after local dawn.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 45% during local night.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 25% during local night.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Aug      66
Sep      62
Oct      60


2. FORECAST (25 SEPTEMBER - 27 SEPTEMBER)
Date   T index  Conditions       MUFs                              
25 Sep    70    Normal           Near predicted monthly values
26 Sep    60    Normal           Near predicted monthly values    
27 Sep    65    Normal           Near predicted monthly values   

COMMENT: Maximum Usable Frequencies (MUFs) in the Australian 
region were mostly near predicted monthly values over UT day 
24-Sep with enhancements of 25-45% during local night. MUFs are 
forecast to be near predicted monthly values over 25-27 Sep. 
While depressions are expected due to further anticipated geomagnetic 
activity, current MUFs are already elevated above predicted monthly 
values.

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For an explanation of some of the terms in this report, go to
https://www.sws.bom.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.

Australian Space Weather Forecasting Centre
Bureau of Meteorology
ASWFC at bom.gov.au
www.bom.gov.au | www.sws.bom.gov.au