[Ips-dhfpr] SWS Daily HF Prop Report - 18 November 16 issued 2330 UT on 18 Nov 2016 [SEC=UNCLASSIFIED]

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/18 NOVEMBER 2016 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (18 NOVEMBER) 
Date   T index  Conditions    
18 Nov     8    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Niue Island Region:
      Mostly near predicted monthly values.
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Depressed by 25% during local day.
      Near predicted monthly values during local night.
   Southern Australian Region:
      Near predicted monthly values.
   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
Oct      10
Nov      26
Dec      25


2. FORECAST (19 NOVEMBER - 21 NOVEMBER)
Date   T index  Conditions       MUFs                              
19 Nov     5    Normal           Depressed 15%/near predicted 
                                 monthly values
20 Nov     5    Normal           Depressed 15%/near predicted 
                                 monthly values    
21 Nov    10    Normal           Near predicted monthly values   

COMMENT: SWS HF Communications Warning 60 was issued on 18 November 
and is current for 19 Nov only. Depressed HF conditions observed 
local daylight hours over the Northern Australian region for 
the UT day, 18 November. Expect variable MUF depressions/enhancements 
at low latitudes due to low solar EUV radiation over the next 
three UT days, 19-21 November. Expect possible minor degradations 
in HF communications mainly at high latitudes 19-20 November 
due to weak geomagnetic activity.

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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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