[Ips-dhfpr] SWS Daily HF Prop Report - 25 November 21 issued 2331 UT on 25 Nov 2021

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/25 NOVEMBER 2021 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (25 NOVEMBER) 
Date   T index  Conditions    
25 Nov     9    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Mostly near predicted monthly values.
      Depressed by 20% after local dawn.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
      Depressed by 25% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Oct      18
Nov      32
Dec      35


2. FORECAST (26 NOVEMBER - 28 NOVEMBER)
Date   T index  Conditions       MUFs                              
26 Nov    10    Normal           Near predicted monthly values/depressed 
                                 10 to 20%
27 Nov    15    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 20%    
28 Nov     5    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 20%   

COMMENT: MUFs in the Australian region on UT day 25 November 
were mostly near predicted monthly values. There were some mild 
depressions in the Southern Australian and the Cocos Island region 
during the local night. MUFs are expected to be near predicted 
monthly values on UT days 26-28 November with some possible mild 
depressions.

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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.

Space Weather Services              email: asfc at bom.gov.au
Bureau of Meteorology
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Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp-out.sws.bom.gov.au
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