[Ips-dhfpr] ASWFC Daily HF Prop Report - 26 September 22 issued 2330 UT on 26 Sep 2022 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/26 SEPTEMBER 2022
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (26 SEPTEMBER) 
Date   T index  Conditions    
26 Sep    78    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 35% during local day.
      Enhanced by 60% during local night.
   Niue Island Region:
      Enhanced by 20% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 30% during local night.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 15% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Aug      53
Sep      68
Oct      69


2. FORECAST (27 SEPTEMBER - 29 SEPTEMBER)
Date   T index  Conditions       MUFs                              
27 Sep    75    Normal           Near predicted monthly values 
                                 to 20% enhanced
28 Sep    70    Normal           Near predicted monthly values    
29 Sep    70    Normal           Near predicted monthly values   

COMMENT: Maximum usable frequencies (MUFs) on UT day 26-Sep were 
mostly near predicted monthly values, with 30% enhancements during 
local night in the northern Australian regions. Sporadic-E was 
observed at the Cocos Islands and Brisbane during local night, 
and spread-F was observed at Darwin during local night. Ionospheric 
scintillation was observed at Weipa on 26-Sep between 1114-1140UT. 
Regional MUFs are expected to be near predicted monthly values 
over 26-28 Sep, with mild enhancements possible during local 
night hours.

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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