Bill Truesdell Wrote: "The less dense air will sink."

I don't want to cause an uproar but this statement is a mistake.  Less dense air rises.  It weighs less than air that is more dense.  Example: Warm air front  -  Warm air is less dense than cold air.  A warm air front is a long, long slant between air masses with the top and front of the warm air mass preceding the bottom and rear portion of the air mass maybe by as much as two hundred miles.  Looks kinda like this,  (  /  ) only the slant is a lot greater with the warm air mass moving from your left to right.  The rain produced in this type of front is generally a long, slow, gentle rain.  A cold air front is generally no more than fifty to eighty miles wide with the cold air pushing in under the warm air, pushing it up.  This is the type of front that produces your thunderstorms and occasionally a tornado.  Back to the initial statement, less dense air will rise.   MIKE  -  Lower middle Alabama

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