[Ips-dhfpr] SWS Daily HF Prop Report - 12 May 17 issued 2346 UT on 12 May 2017 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/12 MAY 2017 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (12 MAY) 
Date   T index  Conditions    
12 May     1    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Depressed by 20% during local day.
      Near predicted monthly values during local night.
   Niue Island Region:
      Depressed by 25% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Depressed by 25% during local day.
      Near predicted monthly values during local night.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 15% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Apr      14
May      12
Jun      12


2. FORECAST (13 MAY - 15 MAY)
Date   T index  Conditions       MUFs                              
13 May     5    Normal           Near predicted monthly values
14 May     5    Normal           Near predicted monthly values    
15 May    -5    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 30%   

COMMENT: Variable HF conditions observed for 12May with depressed 
MUFs for Equatorial, Northern AUS and Southern AUS/NZ stations 
during local day and near predicted monthly values during local 
night. Mostly poor ionospheric support for Antarctic regions. 
Similar conditions are expected for the next 2 days. Notable 
MUF depressions are expected for Southern AUS/NZ regions 15May 
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.

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