[Ips-dhfpr] SWS Daily HF Prop Report - 20 December 17 issued 2332 UT on 20 Dec 2017 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/20 DECEMBER 2017 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (20 DECEMBER) 
Date   T index  Conditions    
20 Dec   -10    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      No data available during.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   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      -5
Dec      4
Jan      4


2. FORECAST (21 DECEMBER - 23 DECEMBER)
Date   T index  Conditions       MUFs                              
21 Dec   -10    Normal-fair      Near predicted monthly values
22 Dec   -10    Normal-fair      Near predicted monthly values    
23 Dec   -10    Normal-fair      Near predicted monthly values   

COMMENT: Propagation conditions has improved slightly over the 
last 24 hours. Near predicted MUFs observed across Aus/NZ regions 
with Minor depressions observed during the local night in the 
equatorial region. Sporadic E blanketing also observed at times 
across the Australian region. Similar, yet improving conditions 
may be expected to prevail today, 21 Dec.

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