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Heavy rain, severe weather threat incoming for Saturday, Sunday

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Heavy rain, severe weather threat incoming for Saturday, Sunday

The phase of heavy rain, coupled with the threat of severe storms, is slowly heading toward the Tennessee Valley.

A strong flow of moist air will continue to flow out from Texas and the Gulf on a perfect track through the Tennessee Valley, primarily on Saturday. Unlike the past week, this segment of weather brings a threat of severe weather including damaging winds, large hail, and the possibility of tornadoes in what could be the biggest severe weather event since last fall.

The strong jet stream will have plenty of wind shear and lift combined with warm humid air to support severe thunderstorms. Storms will begin  southwest of Tennessee and up into southern Missouri.

By evening, storms will evolve into a long squall line stretching from the lower Mississippi Valley through the Tennessee Valley to the Ohio Valley. Damaging straight line winds will be the primary threat, but there is an enhanced risk for embedded tornadoes in the squall line. Flooding rainfall will also be a threat in areas already saturated from the past week of heavy rain. There is also a higher threat of downed trees due to the winds and the weaker, rain-soaked soil.

Flood watches and advisories remain in effect. Two inches of rain, with some higher amounts, is expected.

 

 

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