Monday, April 06, 2009

Lake Effect Showers in Alabama?


1:20 pm


1:25 p.m.



It has been a cool morning in North Alabama as a late season cold front has passed through the region, leaving strong northwesterly winds and overcast skies in its wake. Taking a look at radar it appears that portions of Morgan, Limestone, and Madison counties may be experiencing "lake-effect" precipitation.
Lake effect precipitation is caused when cold air flows over the relatively warmer water of a lake. Water from the lake evaporates and forms clouds that can not contain all of this water, and some of it falls back to the surface as rain or snow showers. Lake effect precipitation is most commonly seen as lake effect snow near the Great Lakes in the Upper Midwest and Northeastern United States.
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