There are severe storms in the South and Mississippi Valley today

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Another round of severe weather is slamming parts of the South and Mississippi Valley on Tuesday, less than a week after a powerful storm system that swept through parts of the region killed at least three people.
Continuing storms are forecast to unleash flooding, damaging winds, large hail and tornadoes Tuesday through Thursday, threatening tens of millions of Americans from eastern Texas to the Southeast coast.
About 9 million people in parts of eastern Texas and western Louisiana have a Level 3 of 5 risk of severe thunderstorms Tuesday.
There will be multiple rounds of severe storms throughout the day Tuesday, but the danger builds later in the afternoon and evening as the chance for tornadoes and damaging winds grows.
A Level 4 of 5 threat of severe storms stretches from eastern Louisiana to western Alabama, including Baton Rouge and Jackson.
A more isolated tornado and damaging wind risk is expected in Level 2 of 5 threat areas, including Birmingham, Montgomery and Huntsville, Alabama.
Flash flooding could occur in all areas, especially parts of eastern Mississippi and central and southern Alabama.
By Thursday, the severe storm threat shifts further into the Southeast while storms also pummel the Ohio Valley.

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Less than a week has passed since a strong storm system swept through parts of the region, killing at least three people. On Tuesday, more severe weather is expected to hit the South and Mississippi Valley.

From Texas to Alabama, there was a lot of rain, wind, and lightning on Monday. Flash flood warnings were issued Tuesday morning after about 4 to 6 inches of rain fell in some areas of northeast Texas, northwest Louisiana, and southwest Arkansas.

Tens of millions of Americans are in danger as persistent storms from eastern Texas to the Southeast coast are predicted to bring flooding, strong winds, massive hail, and tornadoes Tuesday through Thursday.

The possibility of tornadoes with a minimum intensity of EF2 in a region spanning from eastern Texas to the Florida Panhandle through Wednesday night was especially concerning.

There is a Level 3 or 5 risk of severe thunderstorms on Tuesday for about 9 million people in portions of western Louisiana and eastern Texas. Austin and Houston are part of that.

On Tuesday, there will be several rounds of strong storms during the day, but as the likelihood of tornadoes and strong winds increases in the afternoon and evening, the risk increases.

Additionally, the same areas will see heavy rains from the storms. Parts of the southern Mississippi Valley are predicted to see widespread rainfall totals of 3 to 6 inches on Tuesday and Wednesday, with localized areas possibly receiving more than 8 inches. Much of the region is already under a flood watch, which is in effect through Wednesday night.

The National Weather Service in Jackson issued a warning that flash flooding and minor to moderate river flooding are likely to occur in some areas of Mississippi and Louisiana due to the multiple rounds of heavy rain that are predicted between Tuesday and Wednesday.

The weather service reported that up to 10 inches of rain are possible in some areas just west of Jackson, which could result in flooded roads and buildings.

Texas Gov. Greg Abbott on Monday urged the thousands of people who descended upon the state to watch the solar eclipse on Monday to follow official weather warnings. Earlier this week, Abbott gave the state’s emergency management division instructions to mobilize emergency response resources ahead of the severe weather.

The strongest storms may arrive on Wednesday.

With storms from Tuesday night moving eastward, the biggest storm threat is expected to develop on Wednesday and will continue through the morning.

On Wednesday, “many” severe thunderstorms, some of which should be strong (EF2-EF3 caliber), as well as damaging wind gusts exceeding 75 mph, were predicted by the Storm Prediction Center.

Baton Rouge and Jackson are included in the Level 4 of 5 threat area for severe storms that stretches from eastern Louisiana to western Alabama. These are the places most likely to experience powerful tornadoes, though some may also occur in Level 3 of 5 areas, such as Mobile and New Orleans.

In the Level 2 of 5 threat areas, which include Birmingham, Montgomery, and Huntsville, Alabama, there is an increased chance of a tornado and damaging winds.

All regions are susceptible to flash flooding, but particularly portions of eastern Mississippi and central and southern Alabama. The Weather Prediction Center reported a Level 3 or 4 risk of flooding rain in the region. At Alabama’s I-20/I-59 interchange, rain could fall at a rate of almost two inches per hour.

As storms continue to batter the Ohio Valley, the threat of severe storms moves farther into the Southeast by Thursday. Dangerous winds and the possibility of one or more tornadoes are Level 2 of 5 threats for both regions. With the most severe conditions predicted across the Appalachian Mountains, the Southeast to New England are all at risk of flooding on Thursday.

Robert Shackelford of CNN contributed to this article.

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