[Ips-dhfpr] SWS Daily HF Prop Report - 23 October 16 issued 2330 UT on 23 Oct 2016 [SEC=UNCLASSIFIED]

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/23 OCTOBER 2016 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    11    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 35% during local night.
   Niue Island Region:
      Depressed by 20% during local day.
      Depressed by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Mostly 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      30
Oct      30
Nov      30


2. FORECAST (24 OCTOBER - 26 OCTOBER)
Date   T index  Conditions       MUFs                              
24 Oct   -15    Normal-poor      20 to 50% below predicted monthly 
                                 values
25 Oct   -15    Normal-poor      20 to 50% below predicted monthly 
                                 values    
26 Oct   -10    Normal-fair      10 to 40% below predicted monthly 
                                 values   

COMMENT: SWS HF Communications Warning 47 was issued on 22 October 
and is current for 23-24 Oct. Mainly due to low levels of ionising 
radiation, minor to moderate MUF depressions were observed in 
the Aus/NZ regions today (UT day 23 October). Minor to significant 
MUF depressions may be expected in this region on 24, 25 and 
26 October due to very low levels of ionising radiation and 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
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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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