[Ips-dhfpr] SWS Daily HF Prop Report - 23 October 18 issued 2330 UT on 23 Oct 2018 [SEC=UNCLASSIFIED]

Regional Warning Centre rwc at ips.gov.au
Wed Oct 24 10:30:20 EST 2018


SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/23 OCTOBER 2018 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (23 OCTOBER) 
Date   T index  Conditions    
23 Oct   -18    Normal         

Flares: none.

MUFs:
   Niue Island Region:
      Depressed by 20% during local day.
      Depressed by 25% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 15% 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
Sep      0
Oct      -5
Nov      -5


2. FORECAST (24 OCTOBER - 26 OCTOBER)
Date   T index  Conditions       MUFs                              
24 Oct   -15    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 30%
25 Oct   -12    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 20%    
26 Oct    -8    Normal           Near predicted monthly values   

COMMENT: MUFs over the Australian and Antarctic regions were 
mainly near monthly predicted levels on UT day 23 October with 
some periods of minor to mild depressions in the Northern regions. 
Minor to moderate degradations in HF conditions and MUF depressions 
may be possible on UT days 24 and 25 October in the Aus/NZ regions 
due to expected rise in geomagnetic activity levels on these 
days.

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