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Originally Posted by nakdboardr,Jun 12 2008, 03:12 AM
Why does it hail during the summer??
So, this goes into levels of thermodynamics and meteorology that are just a shade past what I studied in school, but from what I remember in Meteorology 101 (yes, I did take it, with the local TV weather guy as my instructor), the middle latitudes (and areas near certain mountain ranges), you have the ability to have still very cold air in the upper atmosphere of a thunderstorm, while the lower air is warm. This supercooling (via temperature difference) leads to optimal hail conditions.