[Ips-dhfpr] SWS Daily HF Prop Report - 12 November 19 issued 2331 UT on 12 Nov 2019

Regional Warning Centre rwc at ips.gov.au
Wed Nov 13 10:31:38 EST 2019


SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/12 NOVEMBER 2019 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (12 NOVEMBER) 
Date   T index  Conditions    
12 Nov   -48    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      Depressed by 30% during local day.
      Depressed by 35% during local night.
      Depressed by 20% after local dawn.
   Niue Island Region:
      Enhanced by 20% during local day.
      Depressed by 15% during local night.
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Depressed by 35% during local day.
      Depressed by 20% during local night.
   Southern Australian Region:
      Depressed by 30% during local day.
      Depressed by 15% 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 (13 NOVEMBER - 15 NOVEMBER)
Date   T index  Conditions       MUFs                              
13 Nov   -35    Normal           Near predicted monthly values/depressed 
                                 15 to 30%
14 Nov   -30    Normal           Near predicted monthly values/depressed 
                                 15 to 30%    
15 Nov   -30    Normal           Near predicted monthly values/depressed 
                                 15 to 30%   

COMMENT: Variable HF propagation conditions were observed over 
the Australian region during UT day 12 November. Maximum usable 
frequencies (MUFs) varied between near predicted monthly values 
to mildly and moderately depressed ones. Mild to moderate enhancements 
were occasionally observed at local night. Sporadic-E occurrences 
were seen over all the sites. For the next three UT days, 13-15 
November, mildly depressed to near predicted monthly MUFs are 
expected over the Australian region.

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