[Ips-dhfpr] ASWFC Daily HF Prop Report - 12 August 26 issued 2330 UT on 12 Aug 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/12 AUGUST 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (12 AUGUST) 
Date   T index  Conditions    
12 Aug    53    Normal         

Flares: none.

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 20% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   Southern Australian Region:
      Mostly 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
Jul      75
Aug      64
Sep      61


2. FORECAST (13 AUGUST - 15 AUGUST)
Date   T index  Conditions       MUFs                              
13 Aug    60    Normal           Near predicted monthly values
14 Aug    55    Normal           Near predicted monthly values    
15 Aug    45    Normal           Near predicted monthly values   

COMMENT: Maximum usable frequencies (MUFs) in the Australian 
region on UT day 12-Aug were mostly near predicted values to 
20% depressed. Degraded conditions were observed in Darwin during 
local night and dawn hours. MUFs are expected to be mostly near 
predicted values. Mild depressions are possible during local 
night hours on 15-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