<div dir="ltr">Hi Leopoldo,<div><br></div><div>I calculate windchill with the following equation:</div><div><br></div><div>&#39;define chill = 35.74+0.6215*temp-35.75*pow(wnd,0.16)+0.4275*temp*pow(wnd,0.16)&#39;<br></div><div>
<br></div><div>where temp is in degree Fahrenheit, and wnd is in mph. This equation outputs windchills in Fahrenheit. </div></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 &#39;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 Sat, Feb 22, 2014 at 2:41 PM, Leopoldo Alvarez <span dir="ltr">&lt;<a href="mailto:lap.bolsa@gmail.com" target="_blank">lap.bolsa@gmail.com</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">

  

    
  
  <div bgcolor="#FFFFFF" text="#000000">
    
    <span lang="en"><span>Hi
        alls, <br>
        <br>
        I am trying to</span> <span>calculate the</span> <span>Windchill</span></span>
    
    <span lang="en"><span>and
        i have used</span> <span>this expression</span></span>
    -&gt;<br>
    <a href="http://www.wrfems.info/viewtopic.php?f=6&amp;t=742" target="_blank">http://www.wrfems.info/viewtopic.php?f=6&amp;t=742</a><br>
    <br>
    &#39;tg2&#39; is wind variable (KPH)<br>
    <br>
    <font face="Dax">&#39;define wis=pow((tg2),0.16)&#39;<br>
      &#39;define windchill = 13.112 + 0.6215*(t-273.15) - 11.37*wis +
      0.3965*(t-273.15)*wis&#39;<br>
      &#39;d windchill&#39;</font><br>
    <br>
    
    <span lang="en"><span>I
        find</span> <span>little difference, </span></span>
    
    <span lang="en"><span>I
        wonder...</span></span><br>
    
    <span lang="en"><span>It</span><span>&#39;ll be</span> <span>well calculated.. Do </span></span>
    
    <span lang="en"><span>you
        calculate</span> <span>the</span> <span>windchill</span> <span>otherwise</span>
      <span>...</span></span> ?<br>
    <br>
     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>
    Best regards, <br>
    <br>
    Leopoldo Álvarez<br>
  </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" target="_blank">http://gradsusr.org/mailman/listinfo/gradsusr</a><br>
<br></blockquote></div><br></div>