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Weather Underground Forecast for Friday, August 01, 2014

An area of low pressure will move across the lower Mississippi Valley on Friday, while a cold front will inch westward over the East Coast.

A low pressure system is forecast to inch eastward over the lower Mississippi Valley on Friday. This system will draw warm, humid air from the Gulf of Mexico to trigger heavy rain and thunderstorms over the western and central Gulf Coast, as well as the Deep South. Just to the east, a cold front will swing westward over the Southeast. As this frontal boundary collides with warm, muggy air, it will initiate widespread thunderstorms across the southern Mid-Atlantic, the Southeast and the southern Appalachians. In addition, a separate cold front will move eastward over the Great Lakes. This system will usher rain and thunderstorms over the upper Midwest and parts of the Northeast on Friday.

Meanwhile, the tail end of a cold front will linger over the southern tier of the Intermountain West. As monsoonal moisture interacts with this frontal boundary, strong thunderstorms and heavy rain will develop across the southern Rockies. Flash flooding will be possible over western Texas, central New Mexico and southeast Colorado. Monsoonal thunderstorms will also spread across the Great Basin and the Southwest on Friday, which could lead to flash flooding in valleys adjacent to sloped terrain. High pressure over the eastern Pacific will keep conditions mostly clear across the West Coast.

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