[Ips-dhfpr] ASWFC Daily HF Prop Report - 30 July 26 issued 2330 UT on 30 Jul 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

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

1. SUMMARY (30 JULY) 
Date   T index  Conditions    
30 Jul    85    Normal         

Flares: none.

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

PCA Event : No event.

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


2. FORECAST (31 JULY - 02 AUGUST)
Date   T index  Conditions       MUFs                              
31 Jul    90    Normal           Near to 15% above predicted 
                                 monthly values
01 Aug    90    Normal           Near to 15% above predicted 
                                 monthly values    
02 Aug    70    Fair             Near to 15% above predicted 
                                 monthly values   

COMMENT: Maximum Usable Frequencies (MUFs) in the Australian 
region on 30-Jul were near predicted values, with enhancements 
of 15-20% observed in the southern Australian region. Sporadic 
E was observed at Canberra and Darwin, with spread-F observed 
at Canberra, Darwin, Townsville and Learmonth. MUFs are forecast 
to remain near predicted monthly values over 31-Jul to 01-Aug, 
with enhancements of up to 15% possible over the period. Depressions 
of 10-15% are possible on 02-Aug, with possible geomagnetic activity 
forecast on this day. Shortwave 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