[Ips-dhfpr] SWS Daily HF Prop Report - 31 December 16 issued 2330 UT on 31 Dec 2016 [SEC=UNCLASSIFIED]

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/31 DECEMBER 2016 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (31 DECEMBER) 
Date   T index  Conditions    
31 Dec    18    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Depressed 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 20% 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 (01 JANUARY - 03 JANUARY)
Date   T index  Conditions       MUFs                              
01 Jan     0    Normal-fair      Depressed 15%/near predicted 
                                 monthly values
02 Jan    -5    Normal-fair      Depressed 15%/near predicted 
                                 monthly values    
03 Jan     2    Normal           Depressed 15%/near predicted 
                                 monthly values   

COMMENT: MUFs were near monthly predicted values in the mid- 
and low-latitude regions of Australia on UT day 31 December. 
Minor depressions were observed in the high-latitude Australian 
regions. Over the next two days (1-2 December), the high latitude 
depressions are expected to extend into the low latitude regions 
as disturbed geomagnetic conditions associated with the coronal 
hole persist. HF users are advised to use lower than the monthly 
predicted frequencies.

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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
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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