[Ips-dhfpr] SWS Daily HF Prop Report - 30 October 18 issued 2330 UT on 30 Oct 2018 [SEC=UNCLASSIFIED]

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/30 OCTOBER 2018 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (30 OCTOBER) 
Date   T index  Conditions    
30 Oct   -22    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      No data available.
   Niue Island Region:
      Depressed by 20% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 20% 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 (31 OCTOBER - 02 NOVEMBER)
Date   T index  Conditions       MUFs                              
31 Oct   -20    Normal           Near predicted monthly values
01 Nov   -15    Normal           Near predicted monthly values    
02 Nov   -15    Normal           Near predicted monthly values   

COMMENT: SWS HF Communications Warning 10 was issued on 28 October 
and is current for 29-31 Oct. MUFs over the Australian regions 
were mainly from near monthly predicted levels to depressed by 
around 20% on UT day 30 October. Very low levels of ionisation 
radiation from the Sun seems to be the main reason for these 
MUF depressions. Minor depressions to near monthly predicted 
MUFs are expected in the Aus/NZ regions for the next three days 
(UT days 31 October - 2 November).

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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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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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