[Ips-dhfpr] SWS Daily HF Prop Report - 15 August 17 issued 2346 UT on 15 Aug 2017 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/15 AUGUST 2017 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (15 AUGUST) 
Date   T index  Conditions    
15 Aug     7    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Depressed by 20% during local day.
      Near predicted monthly values during local night.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 20% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 20% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Jul      10
Aug      6
Sep      5


2. FORECAST (16 AUGUST - 18 AUGUST)
Date   T index  Conditions       MUFs                              
16 Aug    10    Normal-fair      Near predicted monthly values
17 Aug     0    Normal-poor      Near predicted monthly values/depressed 
                                 10 to 30%    
18 Aug     0    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 30%   

COMMENT: MUFs near predicted monthly values over the last 24 
hours for the Australian/NZ region with periods of disturbed 
ionospheric support for Antarctic regions. MUFs expected to remain 
mostly near monthly predicted values for 16Aug. MUF depressions 
of approx -20% for Southern AUS/NZ regions to Northern AUS regions 
and poor ionospheric support for Antarctic regions 17Aug-18Aug 
due to increased geomagnetic activity.

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