[Ips-dhfpr] ASWFC Daily HF Prop Report - 05 October 26 issued 2330 UT on 05 Oct 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/05 OCTOBER 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (05 OCTOBER) 
Date   T index  Conditions    
05 Oct    38    Fair           

Flares    Max     Fadeout    Freq.  Sectors
  M1.0    1848UT  possible   lower  East Pacific/
                                    North American

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 15% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Depressed by 20% during local day.
      Near predicted monthly values during local night.
   Antarctic Region (Casey/Davis/Mawson):
      Depressed by 20% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Sep      61
Oct      60
Nov      58


2. FORECAST (06 OCTOBER - 08 OCTOBER)
Date   T index  Conditions       MUFs                              
06 Oct    50    Normal-fair      Near predicted monthly values
07 Oct    50    Normal           Near predicted monthly values    
08 Oct    50    Normal           Near predicted monthly values   

COMMENT: Maximum Usable Frequencies (MUFs) in the Australian 
region were depressed by up to 20% in the Southern Australian 
region during local daylight hours, following recent geomagnetic 
activity. MUFs were near predicted values in the Northern Australian 
region. Spread F was observed in the Southern Australian region, 
with sporadic E also observed at Learmonth and Townsville. MUFs 
are forecast to return to near predicted values over 06-08 Oct 
as current geomagnetic activity subsides.

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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