[Ips-dhfpr] SWS Daily HF Prop Report - 22 October 17 issued 2330 UT on 22 Oct 2017 [SEC=UNCLASSIFIED]

Regional Warning Centre rwc at ips.gov.au
Mon Oct 23 10:30:31 EST 2017


SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/22 OCTOBER 2017 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (22 OCTOBER) 
Date   T index  Conditions    
22 Oct   -10    Normal         

Flares: none.

MUFs:
   Northern Australian Region:
      Depressed by 15% during local day.
      Depressed by 15% 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
Sep      20
Oct      5
Nov      4


2. FORECAST (23 OCTOBER - 25 OCTOBER)
Date   T index  Conditions       MUFs                              
23 Oct     5    Normal           Near predicted monthly values
24 Oct     5    Normal-fair      Near predicted monthly values    
25 Oct   -10    Fair             Near predicted monthly values/depressed 
                                 15 to 25%   

COMMENT: Near predicted MUFs to Minor depressions in the Australian 
region for the UT day, 22 October. Expect this trend to continue 
for 23-24 October, however on 25 October expect some degradation 
in HF Communication and a return to Minor depressions due to 
the onset of a geomagnetic storm on 24 October.

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