Fox News Weather Center

LIVE: Powerful Storms Erupt Over Mississippi Valley

A widespread outbreak of severe weather is threatening a large portion of the U.S., extending from the upper Texas coast to the Ohio Valley Monday.

"A line of severe storms will move through the lower Mississippi Valley into Monday evening before moving into the Ohio Valley and Southeast Monday night," Meteorologist Andy Mussoline said.

"The storms are bringing the threat of damaging winds, large hail flooding downpours and even an isolated tornado," Mussoline said.

"Indianapolis, Nashville, Tennessee, Birmingham, Alabama and New Orleans will be among the cities at risk through tonight," he added.

The Associated Press reports that one person is dead and four were injured in Arkansas after storms swept across the state. Damage to buildings and power outages have also been reported in several towns in Louisiana.

UPDATES: (All times are listed in Central time)

2:36 p.m. CDT Monday: More than 49,000 Entergy Louisiana customers are without power, the utility reports.

2:33 p.m. CDT Monday: Get the latest on the severe storms as the continue to move across the Mississippi Valley.

12:37 p.m. CDT Monday: "Western Mississippi is in a really prime area for tornado activity through the rest of the afternoon hours," Meteorologist Henry Margusity said.

12:15 p.m. CDT Monday: Damage reported to a concrete plant in Monroe, Louisiana, NWS spotter reports.