[Ips-dhfpr] SWS Daily HF Prop Report - 04 December 21 issued 2331 UT on 04 Dec 2021

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/04 DECEMBER 2021 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (04 DECEMBER) 
Date   T index  Conditions    
04 Dec    18    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   Niue Island Region:
      Depressed by 15% during local day.
      Depressed by 25% during local night.
   Northern Australian Region:
      Mostly near predicted monthly values.
   Southern Australian Region:
      Mostly near predicted monthly values.
   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
Nov      3
Dec      33
Jan      36


2. FORECAST (05 DECEMBER - 07 DECEMBER)
Date   T index  Conditions       MUFs                              
05 Dec    10    Normal-fair      Depressed 30%/near predicted 
                                 monthly values
06 Dec    10    Normal-fair      Near Depressed 30%/near predicted 
                                 monthly values    
07 Dec    15    Normal           Near Depressed 20%/near predicted 
                                 monthly values   

COMMENT: MUFs in the Australian region on UT day 04 December 
were generally near predicted monthly values to mildly depressed. 
Near predicted monthly values to moderate depressions are expected 
04-05 December in the Australian region. Mostly normal HF conditions, 
with the possibility of minor MUF depressions, may be expected 
in the region on 07 December.

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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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