[Ips-dhfpr] SWS Daily HF Prop Report - 28 October 18 issued 2330 UT on 28 Oct 2018 [SEC=UNCLASSIFIED]

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/28 OCTOBER 2018 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (28 OCTOBER) 
Date   T index  Conditions    
28 Oct   -27    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      No data available.
   Niue Island Region:
      Depressed by 20% during local day.
      Depressed by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 35% 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):
      Enhanced by 15% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Sep      0
Oct      -5
Nov      -5


2. FORECAST (29 OCTOBER - 31 OCTOBER)
Date   T index  Conditions       MUFs                              
29 Oct   -25    Normal           Near predicted monthly values
30 Oct   -30    Normal           Depressed 15%/near predicted 
                                 monthly values    
31 Oct   -25    Normal           Near predicted monthly values   

COMMENT: MUFs over the Australian regions were mainly from near 
monthly predicted levels to depressed by around 35% on UT day 
28 October. Very low levels of ionisation radiation from the 
Sun seems to be the main reason for these MUF depressions. Minor 
to moderate MUF depressions in the Aus/NZ regions may be expected 
for the next three days (UT days 29 to 31 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
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Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp-out.sws.bom.gov.au
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