[Ips-dhfpr] SWS Daily HF Prop Report - 11 January 17 issued 2332 UT on 11 Jan 2017 [SEC=UNCLASSIFIED]

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/11 JANUARY 2017 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (11 JANUARY) 
Date   T index  Conditions    
11 Jan   -20    Poor-normal    

Flares: none.

MUFs:
   Cocos Island Region:
      Depressed by 25% during local day.
      Depressed by 30% during local night.
   Niue Island Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Depressed by 20% during local day.
      Depressed by 40% during local night.
   Southern Australian Region:
      Depressed by 25% during local day.
      Depressed by 20% 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
Dec      2
Jan      21
Feb      20


2. FORECAST (12 JANUARY - 14 JANUARY)
Date   T index  Conditions       MUFs                              
12 Jan   -10    Poor-normal      15 to 25% below predicted monthly 
                                 values
13 Jan   -10    Poor-normal      15 to 25% below predicted monthly 
                                 values    
14 Jan   -10    Poor-normal      Near predicted monthly values/depressed 
                                 15 to 25%   

COMMENT: SWS HF Communications Warning 4 was issued on 9 January 
and is current for 10-12 Jan. MUFs were moderately depressed 
across the Australian region on 11-Jan, with severe depressions 
overnight in the north. Extended periods of sporadic-E were observed 
in many locations. MUF depressions are expected to continue due 
to low background EUV flux.

----------------------------------------------------------
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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