[Ips-dhfpr] ASWFC Daily HF Prop Report - 23 June 26 issued 2330 UT on 23 Jun 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/23 JUNE 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (23 JUNE) 
Date   T index  Conditions    
23 Jun    76    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.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 25% during local night.
   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 (24 JUNE - 26 JUNE)
Date   T index  Conditions       MUFs                              
24 Jun    68    Normal           Near predicted monthly values
25 Jun    65    Normal           Near predicted monthly values    
26 Jun    60    Normal-fair      Near predicted monthly values   

COMMENT: Maximum usable frequencies (MUFs) in the Australian 
region on UT day 23-Jun were mostly near predicted values, with 
enhancements of up to 25% seen in the Northern Australian region 
during local night. Spread-F was observed over much of the Australian 
region during local night hours. MUFs are expected to be mostly 
near predicted monthly values over 24-26 Jun. Short-wave fadeouts 
are possible.

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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