Severe flooding and heavy rains in the southern US are disrupting daily life across a broad region. At least 16 million people from South Texas to the Gulf Coast and central Mississippi are under flood warnings.
The warnings are expected to expand during the day to include Alabama. Moderate flood risk has been declared for three days in parts of Texas, Louisiana, Mississippi, and Alabama.
Images from Texas and the Gulf Coast show currents covering roads and submerging vehicles. One video shows a person trapped in floodwaters climbing a tree to reach first responders.
In Texas Hill Country, authorities are searching for a driver and vehicle swept away by floodwaters Monday morning. Bandera County Sheriff Joshua Teitge said parts of the vehicle have been found along the route, giving hope for both the driver and the vehicle in the downstream basin.
Due to heavy rains in Houston, the FIFA Fan Fest was canceled. The National Weather Service continues to issue warnings about life-threatening flash floods throughout the week.
Cities under flash flood risk this week include Corpus Christi, Houston, Galveston, and Beaumont in Texas; Lafayette, Alexandria, and Baton Rouge in Louisiana; Montgomery and Birmingham in Alabama; and Jackson in Mississippi. New Orleans stands out as the highest-risk city, with close monitoring of weather changes advised.
Hourly rainfall in the region is expected to range between 2 and 5 inches. Total rainfall could reach 8 to 10 inches by Friday, with some areas possibly seeing up to 12 inches.
One reason for the intense rainfall is a weather system carrying tropical moisture into the area. This system near the Mexico-Texas border has a 60% chance of developing within the next two to seven days.
If the system moves toward the Gulf, a short-lived tropical storm could form by Tuesday or Wednesday. Regardless of development, the Gulf Coast will face risks of flash floods, strong winds, high currents, and possible waterspouts over the next few days.
The central US is also under a separate weather threat. Severe weather, a possible tornado outbreak, and risks affecting up to 38 million people from Kansas to Ohio are expected Wednesday in the Midwest and Ohio Valley.
On Thursday, the risk will extend from Kentucky and Tennessee to Long Island, with local downpours possible during the Knicks’ championship parade in New York. While the celebration day won’t be completely dry, conditions are not expected to fully disrupt the event.
On the western front, heat warnings are in effect across the Pacific Northwest, California, and the Southern Rockies. These warnings, affecting about 13 million people, predict temperatures 5 to 20 degrees above seasonal norms, increasing wildfire risks in the region.