[Ips-dhfpr] ASWFC Daily HF Prop Report - 05 July 26 issued 2330 UT on 05 Jul 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/05 JULY 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (05 JULY) 
Date   T index  Conditions    
05 Jul    90    Fair-normal    

Flares    Max     Fadeout    Freq.  Sectors
  M1.0 04/2349UT  possible   lower  West Pacific
  M1.4    0031UT  possible   lower  West Pacific
  M1.3    0433UT  possible   lower  E. Asia/Aust.
  M2.7    0539UT  possible   lower  E. Asia/Aust.
  M1.0    0726UT  possible   lower  Mid East/Indian
  M1.4    1100UT  possible   lower  European
  M1.4    1632UT  possible   lower  South American/
                                    Atlantic
  M5.3    1757UT  possible   lower  South American/
                                    Atlantic
  M1.4    1907UT  possible   lower  East Pacific/
                                    North American
  M1.0    2123UT  possible   lower  East Pacific/
                                    North American

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:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Southern Australian Region:
      Enhanced by 15% during local day.
      Enhanced by 20% 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 (06 JULY - 08 JULY)
Date   T index  Conditions       MUFs                              
06 Jul    80    Normal           Depressed 10 to 15%/near predicted 
                                 monthly values
07 Jul    85    Normal-fair      Depressed 10 to 15%/near predicted 
                                 monthly values    
08 Jul    80    Normal-fair      Near predicted monthly values 
                                 to 10-15% depressed   

COMMENT: ASWFC SWF HF Communications Warning 63 was issued on 
4 July and is current for 5-6 Jul. Maximum usable frequencies 
on UT day 5-Jul in the Australian region were mostly enhanced 
by up to 20%, although some brief periods during local dawn hours 
were depressed in some eastern sites. Conditions are Learmonth 
were degraded with sporadic-A present during local night and 
dawn hours; conditions in Hobart were also degraded but with 
persistent nighttime spread-F. MUFs are expected to respond to 
the recent geomagnetic activity by becoming depressed by up to 
10-15% over 6-7 Jul. Depressed MUFs may continue into 8-Jul before 
recovering due to expected geomagnetic activity over 7-8 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