Fox News Weather Center

Severe weather to threaten Houston to New Orleans, Nashville on Tuesday

A system set to develop across the central United States will trigger damaging thunderstorms and flooding downpours across the lower Mississippi Valley on the first day of March.

"The same storm that is raising concerns for winter weather across the Great Lakes and interior Northeast will bring a severe weather threat to the Deep South," AccuWeather Meteorologist Evan Duffey said.

Thunderstorms are expected to initiate across eastern Oklahoma, northern Texas, southern Missouri and western Arkansas Monday night before developing into a squall line on Tuesday.

A squall line is a long band of thunderstorms that typically produces damaging wind gusts, heavy downpours and hail. Tornadoes are also possible along the leading edge of this line.

"As is typical with many of these winter storms, the strong push of cold air clashing with the warm air in place will lead to a line of strong thunderstorms along the system's cold front," Duffey explained.

He added that damaging winds and flooding downpours would be the primary threats from these storms. However, hail and a few isolated tornadoes cannot be ruled out.

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Cities that will likely be impacted by the squall line on Tuesday include Little Rock, Arkansas, Houston and Shreveport, Louisiana. By Tuesday night, the line will shift into Nashville, New Orleans and Birmingham, Alabama.

While these storms will move through areas that were devastated by severe thunderstorms last week, it is highly unlikely that they will match the same intensity and magnitude. However, it only takes one tornado or damaging burst of wind to devastate a family and/or community.

Motorists should be aware of rapidly changing weather conditions should they encounter the squall line. Torrential downpours will lead to reduced visibility and ponding on roadways which could slow the Tuesday evening commute.

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As Tuesday night progresses, the storms will likely lose some of their punch once they reach Atlanta and the Appalachian Mountains.

Regardless, flash flooding and gusty winds will remain a concern until the storms exit the Southeast coast on Wednesday morning.

Behind this front, a brief spell of quieter and cooler weather is expected across the region before another round of rain and thunderstorms at late week.