[Ips-dhfpr] SWS Daily HF Prop Report - 09 December 17 issued 2333 UT on 09 Dec 2017 [SEC=UNCLASSIFIED]

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/09 DECEMBER 2017 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (09 DECEMBER) 
Date   T index  Conditions    
09 Dec    -6    Normal-fair    

Flares: None

MUFs:
   Niue Island Region:
      Depressed by 20% during local day.
      Depressed by 20% during local night.
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
   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      -5
Dec      4
Jan      4


2. FORECAST (10 DECEMBER - 12 DECEMBER)
Date   T index  Conditions       MUFs                              
10 Dec    -5    Normal           Near predicted monthly values
11 Dec    -8    Normal           Near predicted monthly values    
12 Dec   -10    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 20%   

COMMENT: Minor to mild MUF depressions were observed across Aus/NZ 
regions today (UT day 9 December). Spread F and Sporadic E blanketing 
were observed at several low and mid latitude locations. HF conditions 
are expected to stay mostly at normal levels in this region for 
the next two days (10 to 11 December). Minor to mild MUF depressions 
and degradations in HF conditions are possible in the region 
on 12 December.

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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
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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