[Ips-dhfpr] ASWFC Daily HF Prop Report - 28 August 26 issued 2330 UT on 28 Aug 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/28 AUGUST 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (28 AUGUST) 
Date   T index  Conditions    
28 Aug    75    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Enhanced by 40% during local day.
      Enhanced by 65% during local night.
   Northern Australian Region:
      Mostly near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Antarctic Region (Casey/Davis/Mawson):
      Enhanced by 30% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Jul      75
Aug      64
Sep      61


2. FORECAST (29 AUGUST - 31 AUGUST)
Date   T index  Conditions       MUFs                              
29 Aug    75    Normal-fair      Near predicted monthly values
30 Aug    85    Normal           Near predicted monthly values 
                                 to 10-15% enhanced    
31 Aug    85    Normal           Near predicted monthly values 
                                 to 10-15% enhanced   

COMMENT: Maximum usable frequencies (MUFs) in the Australian 
region on UT day 28-Aug were mostly near predicted values to 
15% enhanced. Conditions were degraded in Darwin during local 
dawn hours. Scintillation was observed in Niue at 1618 UT. MUFs 
are expected to be near predicted values over 29-31 Aug, with 
10-15% enhancements possible by 30-Aug.

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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