[Ips-dhfpr] SWS Daily HF Prop Report - 20 October 16 issued 2330 UT on 20 Oct 2016 [SEC=UNCLASSIFIED]

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/20 OCTOBER 2016 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (20 OCTOBER) 
Date   T index  Conditions    
20 Oct     1    Normal-fair    

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 during local day.
      Depressed by 20% during local night.
   Northern Australian Region:
      Depressed by 25% during local day.
      Depressed by 15% during local night.
      Depressed by 20% after local dawn.
   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
Sep      30
Oct      30
Nov      30


2. FORECAST (21 OCTOBER - 23 OCTOBER)
Date   T index  Conditions       MUFs                              
21 Oct     3    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 20%
22 Oct     0    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 30%    
23 Oct   -10    Fair-poor        10 to 40% below predicted monthly 
                                 values   

COMMENT: Mainly due to low levels of ionising radiation, minor 
to moderate MUF depressions were observed in the Aus/NZ regions 
today (UT day 20 October). Nearly similar conditions may be expected 
on 21 October and most parts of 22 October. Minor to significant 
MUF depressions may be expected in this region on 23 October 
due to very low levels of ionising radiation and expected rise 
in geomagnetic activity levels on this day.

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For an explanation of some of the terms in this report, go to
http://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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