[Ips-dhfpr] SWS Daily HF Prop Report - 03 December 17 issued 2336 UT on 03 Dec 2017 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/03 DECEMBER 2017 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (03 DECEMBER) 
Date   T index  Conditions    
03 Dec   -20    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      No data available.
   Niue Island Region:
      Enhanced by 30% during local day.
      Near predicted monthly values during local night.
      Depressed by 35% after local dawn.
   Northern Australian Region:
      Depressed by 20% during local day.
      Depressed by 20% during local night.
   Southern Australian Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
   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 (04 DECEMBER - 06 DECEMBER)
Date   T index  Conditions       MUFs                              
04 Dec    -5    Normal-fair      Near predicted monthly values
05 Dec   -15    Poor-fair        Near predicted monthly values/depressed 
                                 10 to 30%    
06 Dec   -15    Poor-fair        Near predicted monthly values/depressed 
                                 10 to 30%   

COMMENT: Variable HF conditions ranging from slight enhancements 
to notable depressed MUFs by 25% for Equatorial/Northern AUS 
regions were observed over the last 24 hours. Disturbed periods 
observed for Mid to High latitudes over the past 24 hours. Noted 
Spread F and Sporadic E blacketing during the UT day at most 
locations which may have contributed to degraded HF conditions. 
Similar, yet improving conditions may be expected to prevail 
today, 04 Dec followed by storm-associated depressions on the 
subsequent days, possibly beginning from 05 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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