Brian,<br><br> In the NARR files, the fields like the winds, heights, temperature are analyses. The APCP is<br>a 0-3 hour forecast. It's time stamp may be 3 hours after the analysis time. (Consequently you would<br>
have to change the time to view.) It depends on how the ctl/idx files were created. More details are given by<br><br><a href="http://www.cpc.ncep.noaa.gov/products/wesley/grib2ctl.html">http://www.cpc.ncep.noaa.gov/products/wesley/grib2ctl.html</a><br>
<br>Wesley Ebisuzaki<br><br><br><div class="gmail_quote">On Wed, Jan 2, 2013 at 9:16 AM, Brian Walsh <span dir="ltr"><<a href="mailto:brianw@provair.com" target="_blank">brianw@provair.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p class="MsoNormal">Hello,</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">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.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">I would appreciate any insight.</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Thanks</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Brian Walsh<span></span></p>
<p class="MsoNormal"> </p>
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