<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN">
<html><body style='font-size: 10pt; font-family: Tahoma,Arial,Helvetica,sans-serif'>
<p>Hi Joey,</p>
<p>Worked a treat, ta very much.</p>
<p> </p>
<p>On 14-12-2015 06:18, Joey Woodson wrote:</p>
<blockquote type="cite" style="padding-left:5px; border-left:#1010ff 2px solid; margin-left:5px"><!-- html ignored --><!-- head ignored --><!-- meta ignored -->
<div dir="ltr">You can use APCPsfc-APCPsfc(t-1) to get the 3-hour precipitation. Note that you need to have downloaded the ACPCsfc GRIB file for the previous forecast hour as well in order to do this. You also need to generate a .ctl file that encompasses both GRIB files (personally I like to have it include all of the relevant files).</div>
<div class="gmail_extra"><br />
<div class="gmail_quote">On Sat, Dec 12, 2015 at 8:53 AM, Chorley Weather <span><<a href="mailto:weatherstu@chorleyweather.com">weatherstu@chorleyweather.com</a>></span> wrote:<br />
<blockquote class="gmail_quote" style="margin: 0 0 0 .8ex; border-left: 1px #ccc solid; padding-left: 1ex;"><span style="text-decoration: underline;"></span>
<div style="font-size: 10pt; font-family: Tahoma,Arial,Helvetica,sans-serif;">
<p>Hi all,</p>
<p> </p>
<p>I am currently developing GEM charts (25km) and I see that function variable APCPsfc is actually accumulated precipitation. Is there a way to get single 3 hour precipitation rates without the accumulation. There is also a PRATE option but this seem to be full of undefined values. </p>
<p>Thank you in advance,</p>
<div>-- <br />
<p>Stuart Markham</p>
<p><img src="cid:1450103628566ed34c2c047643476462@chorleyweather.com" alt="" /></p>
</div>
</div>
<br />_______________________________________________<br /> gradsusr mailing list<br /> <a href="mailto:gradsusr@gradsusr.org">gradsusr@gradsusr.org</a><br /> <a href="http://gradsusr.org/mailman/listinfo/gradsusr">http://gradsusr.org/mailman/listinfo/gradsusr</a><br /> </blockquote>
</div>
<br /><br clear="all" /><br />-- <br />
<div class="gmail_signature"><br /><a href="http://www.instantweathermaps.com">http://www.instantweathermaps.com</a></div>
</div>
<br />
<pre>_______________________________________________
gradsusr mailing list
<a href="mailto:gradsusr@gradsusr.org">gradsusr@gradsusr.org</a>
<a href="http://gradsusr.org/mailman/listinfo/gradsusr">http://gradsusr.org/mailman/listinfo/gradsusr</a>
</pre>
</blockquote>
<p> </p>
<div>-- <br />
<p>Stuart Markham</p>
<p><img src="http://www.chorleyweather.com/forecast-charts/SampleDatasets/logo%20450x100.PNG" alt="" /></p>
</div>
</body></html>