[Ips-dhfpr] SWS Daily HF Prop Report - 22 December 16 issued 2330 UT on 22 Dec 2016 [SEC=UNCLASSIFIED]

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/22 DECEMBER 2016 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (22 DECEMBER) 
Date   T index  Conditions    
22 Dec    -7    Fair           

Flares: none.

MUFs:
   Cocos Island Region:
      Depressed by 30% during local day.
      Near predicted monthly values during local night.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
      Depressed by 20% after local dawn.
   Southern Australian Region:
      Depressed by 20% during local day.
      Depressed by 15% during local night.
      Depressed by 20% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 20% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Nov      3
Dec      24
Jan      23


2. FORECAST (23 DECEMBER - 25 DECEMBER)
Date   T index  Conditions       MUFs                              
23 Dec    -5    Fair-poor        20 to 30% below predicted monthly 
                                 values
24 Dec     0    Fair             10 to 20% below predicted monthly 
                                 values    
25 Dec     5    Normal           Near predicted monthly values   

COMMENT: SWS HF Communications Warning 69 was issued on 22 December 
and is current for 22-24 Dec. Minor to moderate depressions in 
MUFs were observed in Aus/NZ regions today (22 December UT). 
Nearly similar HF conditions may be expected in this region on 
23 and 24 December. MUFs are expected to stay mostly near predicted 
monthly values on 25 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
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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