[Ips-dhfpr] ASWFC Daily HF Prop Report - 03 October 26 issued 2330 UT on 03 Oct 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/03 OCTOBER 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (03 OCTOBER) 
Date   T index  Conditions    
03 Oct    58    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
      Depressed by 20% after local dawn.
   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
Sep      61
Oct      60
Nov      58


2. FORECAST (04 OCTOBER - 06 OCTOBER)
Date   T index  Conditions       MUFs                              
04 Oct    45    Normal-fair      Depressed 10-15%/near predicted 
                                 monthly values
05 Oct    55    Normal           Near predicted monthly values    
06 Oct    60    Normal           Near predicted monthly values   

COMMENT: Maximum Usable Frequencies in the Australian region 
on UT day 03-Oct were mostly near predicted values, with depressions 
of up to 20% observed at Niue Island. Isolated depressions were 
observed during local night hours at Darwin, and strong sporadic 
E was also observed at Darwin and Hobart. MUFs are forecast to 
become depressed by 10-15% on 04-Oct due to forecast geomagnetic 
activity, before trending toward predicted values over 05-06 
Oct.

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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