[Ips-dhfpr] ASWFC Daily HF Prop Report - 07 September 23 issued 2330 UT on 07 Sep 2023 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/07 SEPTEMBER 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (07 SEPTEMBER) 
Date   T index  Conditions    
07 Sep   114    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M2.1    1909UT  possible   lower  East Pacific/
                                    North American

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 30% during local night.
   Niue Island Region:
      Enhanced by 25% during local day.
      Enhanced by 55% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Enhanced by 15% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Aug      115
Sep      96
Oct      93


2. FORECAST (08 SEPTEMBER - 10 SEPTEMBER)
Date   T index  Conditions       MUFs                              
08 Sep   110    Normal           Near predicted monthly values 
                                 to 15% enhanced
09 Sep   110    Normal           Near predicted monthly values 
                                 to 15% enhanced    
10 Sep   110    Normal           Near predicted monthly values 
                                 to 15% enhanced   

COMMENT: ASWFC SWF HF Communications Warning 87 was issued on 
5 September and is current for 6-8 Sep. Maximum usable frequencies 
(MUFs) on UT day 07-Sep were mostly near predicted values in 
the Australian region. Scintillation was observed at Niue 07/0733-1118UT. 
Strong enhancements were also observed at Niue. MUFs are expected 
to be near predicted monthly values to 15% enhanced over 08-10 
Sep. Isolated minor 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