[Ips-dhfpr] ASWFC Daily HF Prop Report - 10 August 26 issued 2330 UT on 10 Aug 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/10 AUGUST 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (10 AUGUST) 
Date   T index  Conditions    
10 Aug    35    Fair           

Flares: none.

MUFs:
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Depressed by 15% during local day.
      Depressed by 30% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 30% during local night.
   Southern Australian Region:
      Depressed by 15% during local day.
      Depressed by 20% during local night.
   Antarctic Region (Casey/Davis/Mawson):
      Depressed by 15% over the UT day.

PCA Event : No event.

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


2. FORECAST (11 AUGUST - 13 AUGUST)
Date   T index  Conditions       MUFs                              
11 Aug    40    Normal           Depressed 15%/near predicted 
                                 monthly values
12 Aug    45    Normal-fair      Near predicted monthly values    
13 Aug    45    Normal           Near predicted monthly values   

COMMENT: ASWFC HF Communications Warning 71 was issued on 10 
August and is current for 11 Aug only. Maximum Usable Frequencies 
(MUFs) in the Australian region on UT day 10-Aug were depressed 
by 15-30%, with the strongest depressions observed in northern 
Australia during local night hours. Spread F was observed at 
several Australian sites during local night hours. MUFs are forecast 
to be near predicted monthly values to 15% depressed on 11-Aug, 
then near predicted monthly values over 12-13 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