An index that combines air temperature and humidity to give an apparent temperature (how hot it feels). Here is a heat index formula originally from Weatherwise magazine. It gives valid results above 70 deg. F.
Tweet Vote on HN Some severe storms hit St Clair during the afternoon with hail, very heavy rain and some […]
Tweet Vote on HN Insane Supercell Structure Dumas, Texas May 18 2010 Impressive Supercell in the Texas Panhandle near Dumas […]