[Ips-dhfpr] ASWFC Daily HF Prop Report - 29 August 25 issued 2330 UT on 29 Aug 2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/29 AUGUST 2025
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (29 AUGUST) 
Date   T index  Conditions    
29 Aug   112    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.0    0416UT  possible   lower  E. Asia/Aust.

MUFs:
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Mostly near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 25% during local night.
   Southern Australian Region:
      Mostly near predicted monthly values.
      Enhanced by 20% after local dawn.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Jul      88
Aug      96
Sep      93


2. FORECAST (30 AUGUST - 01 SEPTEMBER)
Date   T index  Conditions       MUFs                              
30 Aug   115    Normal           Near predicted monthly values 
                                 to 25% enhanced
31 Aug   115    Normal           Near predicted monthly values 
                                 to 25% enhanced    
01 Sep   115    Normal           Near predicted monthly values 
                                 to 25% enhanced   

COMMENT: Maximum usable frequencies (MUFs) on UT day 29-Aug were 
near predicted values to 25% enhanced. Conditions were degraded 
during local night hours in Darwin. Scintillation was observed 
in Darwin and Weipa from 1205 to 1240 UT. MUFs are expected to 
be near predicted values to 25% enhanced over 30-Aug to 1-Sep. 
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