[Ips-dhfpr] SWS Daily HF Prop Report - 14 December 16 issued 2331 UT on 14 Dec 2016 [SEC=UNCLASSIFIED]

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/14 DECEMBER 2016 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (14 DECEMBER) 
Date   T index  Conditions    
14 Dec     1    Poor-normal    

Flares: None

MUFs:
   Cocos Island Region:
      Mostly near predicted monthly values.
      Depressed by 20% after local dawn.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Northern Australian Region:
      Depressed by 20% during local day.
      Near predicted monthly values during local night.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 15% 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      3
Dec      24
Jan      23


2. FORECAST (15 DECEMBER - 17 DECEMBER)
Date   T index  Conditions       MUFs                              
15 Dec     0    Poor-normal      0 to 20% below predicted monthly 
                                 values
16 Dec     5    Fair-normal      0 to 15% below predicted monthly 
                                 values    
17 Dec    10    Fair-normal      Near predicted monthly values   

COMMENT: Conditions for HF radio wave propagation strengthened 
throughout the Australian region during 14 Dec UT. They were 
enhanced at some low latitude locations. Local daily T indices 
were 39 at Cocos Island and 29 at Darwin, but only -34 at Norfolk 
Island. Conditions are expected to trend towards predicted monthly 
values during the next 3 days. Mid-latitude sporadic E layers 
are prevalent on an almost daily basis: propagation will often 
be via sporadic E when using lower frequencies.

----------------------------------------------------------
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
PO Box 1386                         WWW: http://www.sws.bom.gov.au
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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