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

[Australian Space Weather Forecasting Centre]

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

1. SUMMARY (12 JULY) 
Date   T index  Conditions    
12 Jul    68    Fair-normal    

Flares    Max     Fadeout    Freq.  Sectors
  M1.1    0811UT  possible   lower  Mid East/Indian

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 15% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Jun      81
Jul      66
Aug      63


2. FORECAST (13 JULY - 15 JULY)
Date   T index  Conditions       MUFs                              
13 Jul    65    Normal-fair      Near predicted monthly values
14 Jul    70    Normal           Near predicted monthly values    
15 Jul    70    Normal           Near predicted monthly values   

COMMENT: Maximum Usable Frequencies (MUFs) in the Australian 
region were near predicted monthly values during daylight hours 
on 12-Jul, with depressions of up to 20% reported in the northern 
Australian region during local night hours. Some spread-F was 
observed during local night hours, with strong spread-F reported 
in Hobart. Sporadic E was also observed at Darwin and Niue Island. 
MUFs are forecast to be near predicted values over 13-15 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