[Ips-dhfpr] ASWFC Daily HF Prop Report - 29 September 26 issued 2330 UT on 29 Sep 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/29 SEPTEMBER 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (29 SEPTEMBER) 
Date   T index  Conditions    
29 Sep    60    Normal-fair    

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.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values.
   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 (30 SEPTEMBER - 02 OCTOBER)
Date   T index  Conditions       MUFs                              
30 Sep    65    Normal           Near predicted monthly values
01 Oct    65    Normal           Near predicted monthly values    
02 Oct    50    Normal-fair      Depressed 10 to 15%/near predicted 
                                 monthly values   

COMMENT: Maximum Usable Frequencies (MUFs) in the Australian 
region were mostly near predicted values on 29-Sep, with some 
isolated depressions observed at Darwin and Townsville during 
local night hours. Ionospheric scintillation was also recorded 
at Darwin between 29/1404-1420UT. Spread-F was observed in Hobart 
during local night hours. MUFs are forecast to remain near predicted 
values over 30-Sep to 01-Oct, with depressions of 10-15% forecast 
on 02-Oct due to anticipated geomagnetic activity.

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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