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<p class=MsoNormal><span style='font-family:"Tahoma","sans-serif";color:#1F497D'>As
far as I understand the APCP is a 3 hourly accumulated precipitation field so
there will be no data for forecast time t+0. You need to plot data from t+3 or beyond.
I’m not sure how the categoricals are calculated but they may be derived from
the accumulated field which will give the same result if that is so.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Tahoma","sans-serif";color:#1F497D'>Kieren<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Tahoma","sans-serif";color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> gradsusr-bounces@gradsusr.org
[mailto:gradsusr-bounces@gradsusr.org] <b>On Behalf Of </b>Brian Walsh<br>
<b>Sent:</b> 02 January 2013 18:16<br>
<b>To:</b> gradsusr@gradsusr.org<br>
<b>Subject:</b> [gradsusr] NARR Dataset - Precipitation<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal><span lang=EN-CA>Hello,<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-CA> <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-CA>I downloaded data from the NARR model and
I’m able to extract point data for all variables, except precipitation
amount (APCP) and categorical precipitation types (CFRZR, CICEP, CRAIN, CSNOW).
When I try to plot the precipitation amount data, it is saying “Cannot
contour grid – all undefined values”, but when I run wgrib on the
files, it is giving me a range of values for those variables.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-CA> <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-CA>I would appreciate any insight.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-CA> <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-CA>Thanks<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-CA> <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-CA>Brian Walsh<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-CA> <o:p></o:p></span></p>
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