[Ips-dhfpr] SWS Daily HF Prop Report - 29 December 18 issued 2330 UT on 29 Dec 2018 [SEC=UNCLASSIFIED]

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/29 DECEMBER 2018 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (29 DECEMBER) 
Date   T index  Conditions    
29 Dec   -35    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      No data available.
   Niue Island Region:
      Near predicted monthly values.
   Depressed by 30% during local night
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 30% during local night.
   Southern Australian Region:
      Depressed by 20% during local day.
      Depressed by 30% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 15% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Nov      -32
Dec      -8
Jan      -9


2. FORECAST (30 DECEMBER - 01 JANUARY)
Date   T index  Conditions       MUFs                              
30 Dec   -40    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 30%
31 Dec   -20    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 20%    
01 Jan   -20    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 20%   

COMMENT: On 29 December, MUFs ranged from Moderate depressions 
to near predicted monthly values. Periods of Blanketing Sporadic 
E conditions were seen across the Australian region. Similar 
levels of ionospheric support expected for the next 24 hours 
due to continued very low levels of ionising radiation from the 
Sun.

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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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