[Ips-dhfpr] SWS Daily HF Prop Report - 13 November 19 issued 2331 UT on 13 Nov 2019

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/13 NOVEMBER 2019 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (13 NOVEMBER) 
Date   T index  Conditions    
13 Nov   -36    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   Niue Island Region:
      Depressed by 15% during local day.
      Depressed by 15% during local night.
      Depressed by 30% after local dawn.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 30% during local night.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 20% 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
Oct      -20
Nov      -16
Dec      -17


2. FORECAST (14 NOVEMBER - 16 NOVEMBER)
Date   T index  Conditions       MUFs                              
14 Nov   -30    Normal           Near predicted monthly values/depressed 
                                 15 to 30%
15 Nov   -30    Normal           Near predicted monthly values/depressed 
                                 15 to 30%    
16 Nov   -30    Normal           Near predicted monthly values   

COMMENT: Variable HF propagation conditions were observed over 
the Australian region during UT day 13 November. Maximum usable 
frequencies (MUFs) varied between near predicted monthly values 
to mildly and moderately depressed ones. Depressions were observed 
mostly during local night. Mild enhancements were occasionally 
observed during local day. Sporadic-E occurrences were seen over 
all the sites. For the next three UT days, 14-16 November, mildly 
depressed to near predicted monthly MUFs are expected over the 
Australian region. Moderate depressions are also possible.

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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
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