[Ips-dhfpr] ASWFC Daily HF Prop Report - 26 July 25 issued 2332 UT on 26 Jul 2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/26 JULY 2025
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (26 JULY) 
Date   T index  Conditions    
26 Jul    99    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 40% during local day.
      Enhanced by 20% during local night.
      Depressed by 20% after local dawn.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Northern Australian Region:
      Mostly 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
Jun      79
Jul      104
Aug      102


2. FORECAST (27 JULY - 29 JULY)
Date   T index  Conditions       MUFs                              
27 Jul   100    Normal           Near predicted monthly values
28 Jul   105    Normal           Near predicted monthly values    
29 Jul   105    Normal           Near predicted monthly values   

COMMENT: Maximum usable frequencies (MUFs) on UT day 26-Jul were 
mostly near predicted values. Sporadic-E was observed during 
local dawn hours in Learmonth, Brisbane and Canberra during local 
dawn hours. MUFs are generally expected to be near predicted 
values over 27-29 Jul.

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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