[Ips-dhfpr] SWS Daily HF Prop Report - 15 September 21 issued 2330 UT on 15 Sep 2021

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/15 SEPTEMBER 2021 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (15 SEPTEMBER) 
Date   T index  Conditions    
15 Sep    15    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Depressed by 20% during local day.
      Depressed by 30% during local night.
      Depressed by 20% after local dawn.
   Niue Island Region:
      No data available.
   Northern Australian Region:
      Mostly near predicted monthly values.
   Southern Australian Region:
      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
Aug      14
Sep      27
Oct      30


2. FORECAST (16 SEPTEMBER - 18 SEPTEMBER)
Date   T index  Conditions       MUFs                              
16 Sep    15    Normal           Near predicted monthly values
17 Sep    10    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 20%    
18 Sep    10    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 20%   

COMMENT: MUFs in the Australian region on UT day 15 September 
were mostly near predicted monthly values. Some mildly depressed 
MUFs were observed over the Cocos Island region. MUFs in the 
Australian region on UT days 16-18 September are expected to 
be mostly near predicted monthly values. Some mild MUF depressions 
may occur on UT days 17-18 September due to a possible increase 
in geomagnetic activity.

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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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