[Ips-dhfpr] SWS Daily HF Prop Report - 21 December 16 issued 2337 UT on 21 Dec 2016 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/21 DECEMBER 2016 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (21 DECEMBER) 
Date   T index  Conditions    
21 Dec     8    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Mostly near predicted monthly values.
      Depressed by 25% after local dawn.
   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      3
Dec      24
Jan      23


2. FORECAST (22 DECEMBER - 24 DECEMBER)
Date   T index  Conditions       MUFs                              
22 Dec   -20    Fair-poor        20 to 40% below predicted monthly 
                                 values
23 Dec   -15    Fair-poor        20 to 40% below predicted monthly 
                                 values    
24 Dec   -10    Fair             20 to 30% below predicted monthly 
                                 values   

COMMENT: MUFs were mostly near normal in Aus/NZ regions today. 
Minor to significant MUF depressions and degradations in HF conditions 
may be expected from 22 to 24 December in this region.

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