From: Ralph M. <ral...@gm...> - 2006-07-19 16:51:47
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On 7/19/06, Matthew Williams <mat...@us...> wrote: > Tom wrote: > > I know it's hot in Atlanta right now, but MH is saying the apparent > > temperature is 101 and last week it was 109. > > Some code points to apparent temp coming from wind chill and getting > > renamed, but where does it get wind chill? > > > > The wind chill formula is in mh/lib/Weather_Common.pm as is the formula for > Humidex. The reason that wind chill is always calculated and not read from > a weather source is that the formula for wind chill was amended relatively > recently. As we can't be sure of which formula is being used by our source, > we default to calculating it ourselves. For the curious, here's what NOAA has to say about the change in the wind chill calculations: http://www.nws.noaa.gov/om/windchill/ Ralph Mitchell |