[Ips-dhfpr] ASWFC Daily HF Prop Report - 30 June 26 issued 2331 UT on 30 Jun 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/30 JUNE 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (30 JUNE) 
Date   T index  Conditions    
30 Jun    75    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Mostly near predicted monthly values.
      Enhanced by 35% after local dawn.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Southern Australian Region:
      Mostly near predicted monthly values.
      Enhanced by 20% after local dawn.
   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 (01 JULY - 03 JULY)
Date   T index  Conditions       MUFs                              
01 Jul    70    Normal-fair      Depressed 10 to 15%/near predicted 
                                 monthly values
02 Jul    80    Normal           Near predicted monthly values    
03 Jul    85    Normal           Near predicted monthly values   

COMMENT: ASWFC SWF HF Communications Warning 59 was issued on 
30 June and is current for 1-2 Jul. Maximum usable frequencies 
(MUFs) in the Australian region on UT day 30-Jun were mostly 
near predicted values, with some brief depressions in the north 
and brief enhancements in the south. Spread-F was observed along 
the eastern coast of Australia during local night hours. A shortwave 
fadeout may have affected radio frequencies along the eastern 
coast of Australia during local dawn hours. MUFs are expected 
to be mostly near predicted monthly values over 1-3 Jul, with 
some minor depressions of 15% possible on 1-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