<div dir="ltr"><div><div>Leopoldo, <br><br></div>I retract my statement above. I did find the formula that uses KPH and C, and it is nearly identical to the first equation you posted. I did notice you missed a few parts like the exponents. Here is the equation I found: <br>
<div><br></div>'define chill = 13.12+0.6215*temp-11.37*pow(wnd,0.16)+0.3965*temp*pow(wnd,0.16)'<br><br></div>This one should get you the correct values using KPH and C.<br></div><div class="gmail_extra"><br clear="all">
<div><div dir="ltr"><b>William (L.B.) LaForce</b><div>Meteorologist</div><div>Central Michigan University '13<br></div><div><a href="http://www.tornadoinsanity.com" target="_blank">www.tornadoinsanity.com</a></div></div>
</div>
<br><br><div class="gmail_quote">On Sun, Feb 23, 2014 at 4:17 PM, L.B. <span dir="ltr"><<a href="mailto:bcbass2989@gmail.com" target="_blank">bcbass2989@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr"><div>Leopoldo,<br><br></div>Unfortunately, you'll need to convert your KPH to MPH and C to F to input into the equation, and then convert the windchill temp back to C afterwards. It's a little tedious, but the equation only works with F and MPH. The whole regression equation would have to be changed to work with KPH and C by default.<br>
</div><div class="gmail_extra"><br clear="all"><div><div dir="ltr"><b>William (L.B.) LaForce</b><div>Meteorologist</div><div>Central Michigan University '13<br></div><div><a href="http://www.tornadoinsanity.com" target="_blank">www.tornadoinsanity.com</a></div>
</div></div>
<br><br><div class="gmail_quote"><div><div class="h5">On Sun, Feb 23, 2014 at 2:30 PM, Leopoldo Alvarez <span dir="ltr"><<a href="mailto:lap.bolsa@gmail.com" target="_blank">lap.bolsa@gmail.com</a>></span> wrote:<br>
</div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5">
<div bgcolor="#FFFFFF" text="#000000">
<font face="Dax">Hi Willians,<br>
</font><br>
<font face="Dax">
<span lang="en"><span>- [1] I
used</span> <span>your </span><span></span>
<span>formulation</span> <span>but</span>
<span>using</span> <span>degrees
Celsius (ºC) and</span> KPH...</span></font>
<span lang="en"><span>
I</span> <span>don´t know if</span> <span>it is</span> <span>valid...</span></span><br>
<span lang="en"><span>Now</span>
<span></span><span>temperature is more
low...mmmh<br>
</span></span><font face="Dax"><br>
'define chill =
35.74+0.6215*(t-273.15)-35.75*pow((tg1*3.6),0.16)+0.4275*(t-273.15)*pow((tg1*3.6),0.16))'<br>
</font><font face="Dax"><br>
Date / wind (KPH) / temp (ºC) / windchill (ºC)<br>
2014-FEB-19-13Z 27.5996 18.8929 0.426981<br>
2014-FEB-19-14Z 31.2976 19.2836 0.00337819<br>
2014-FEB-19-15Z 31.2976 19.0446 -0.322477<br>
<br>
<br>
</font>
<span lang="en"><span>-[2]
In other</span> </span><font face="Dax"><span lang="en"><span> </span><span></span>
<span>formulation </span></span></font><span lang="en"><span></span><span>the difference</span> <span>was less</span>
<span>...</span></span><br>
<a href="http://www.wrfems.info/viewtopic.php?f=6&t=742" target="_blank">http://www.wrfems.info/viewtopic.php?f=6&t=742</a><br>
<font face="Dax">- 'tg2' is wind variable (KPH)</font><br>
<span lang="en"><span><font face="Dax">'define wis=pow((tg2),0.16)'<br>
'define windchill = 13.112 + 0.6215*(t-273.15) - 11.37*wis +
0.3965*(t-273.15)*wis'<br>
'd windchill'<br>
<br>
here </font></span></span><span lang="en"><span>I find</span> <span>little difference, </span></span> <span lang="en"><span>I
wonder...<br>
<br>
</span></span> Date / wind (KPH) / temp (ºC) / windchill (ºC)<br>
2014-FEB-19-13Z 27.5996 18.8929 18.2582<br>
2014-FEB-19-14Z 31.2976 19.2836 18.6358<br>
2014-FEB-19-15Z 31.2976 19.0446 18.3228<br>
<br>
<span lang="en"><span>If</span>
<span>your</span> <span>test this web
with my data</span></span> [2], is similar windchill..<br>
<a href="http://www.csgnetwork.com/windchillcalc.html" target="_blank">http://www.csgnetwork.com/windchillcalc.html</a><br>
<br>
Best, <br>
<br>
Leopoldo<br>
</div>
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</blockquote></div><br></div>