[Ips-dhfpr] ASWFC Daily HF Prop Report - 09 June 26 issued 2334 UT on 09 Jun 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/09 JUNE 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (09 JUNE) 
Date   T index  Conditions    
09 Jun    68    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:
      Mostly near predicted monthly values.
   Southern Australian Region:
      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
May      67
Jun      68
Jul      65


2. FORECAST (10 JUNE - 12 JUNE)
Date   T index  Conditions       MUFs                              
10 Jun    75    Normal           Near predicted monthly values
11 Jun    70    Normal-fair      Near predicted monthly values    
12 Jun    60    Fair             Near predicted monthly values   

COMMENT: ASWFC Preliminary HF Communications Warning 53 was issued 
on 6 June and is current for 8-10 Jun. Maximum usable frequencies 
(MUFs) in the Australian region were near predicted monthly values. 
Spread F was observed at Hobart and Canberra during local night 
hours. MUFs are expected to be mostly near predicted monthly 
values over 10-12 Jun, with a chance of depressions on 11-12 
Jun if geomagnetic activity eventuates following the arrival 
of a coronal hole high speed wind stream on 11-Jun.

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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