[Ips-dhfpr] ASWFC Daily HF Prop Report - 09 September 23 issued 2330 UT on 09 Sep 2023 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/09 SEPTEMBER 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (09 SEPTEMBER) 
Date   T index  Conditions    
09 Sep   118    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 50% during local day.
      Enhanced by 80% during local night.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   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 (10 SEPTEMBER - 12 SEPTEMBER)
Date   T index  Conditions       MUFs                              
10 Sep   115    Normal-fair      Near to 15% above predicted 
                                 monthly values
11 Sep   115    Normal           Near to 15% above predicted 
                                 monthly values    
12 Sep   115    Normal           Near to 15% above predicted 
                                 monthly values   

COMMENT: ASWFC SWF HF Communications Warning 88 was issued on 
8 September and is current for 8-10 Sep. Maximum usable frequencies 
(MUFs) on UT day 09-Sep were near predicted monthly values to 
15% enhanced in the Australian region. MUFs are expected to be 
near predicted monthly values to 15% enhanced over 10-12 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