[Ips-dhfpr] ASWFC Daily HF Prop Report - 06 July 26 issued 2330 UT on 06 Jul 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/06 JULY 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (06 JULY) 
Date   T index  Conditions    
06 Jul    74    Fair           

Flares: none.

MUFs:
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Enhanced by 15% during local day.
      Depressed by 25% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Depressed by 15% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Jun      81
Jul      66
Aug      63


2. FORECAST (07 JULY - 09 JULY)
Date   T index  Conditions       MUFs                              
07 Jul    65    Normal-fair      Near predicted monthly values
08 Jul    70    Fair-normal      Depressed 10 to 15%/near predicted 
                                 monthly values    
09 Jul    70    Fair-normal      Near predicted monthly values   

COMMENT: Maximum Usable Frequencies (MUFs) in the Australian 
region were mostly near predicted values on UT day 06-Jul, with 
large day-night variations reported at Niue Island. Significant 
spread-F was observed across the Australian region, especially 
in the southern Australian region. Depressions of up to 15% were 
also reported in the Antarctic region. MUFs are expected to trend 
towards predicted values over much of 07-Jul, with forecast geomagnetic 
activity expected to cause depressions of 10-15% on 08-Jul. Conditions 
are then likely to improve on 09-Jul, with some mild depressions 
possible due to a coronal hole high speed wind stream. Shortwave 
fadeouts are possible.

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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