The southern United States remains under threat of flooding following a wet Memorial Day weekend. Around 15 million people from Louisiana to Georgia face flood alerts on Tuesday as the region prepares for more heavy rain and thunderstorms, potentially delivering up to 2 inches of rainfall in some locations.
A flooded driveway in Poplarville, Mississippi, on Monday.
Additionally, heavy rain is expected from the Carolinas to western Texas. In parts of southwest Texas, including Midland and Fort Stockton, large hail, damaging winds, and a few tornadoes could occur. Recent images and videos from the Memorial Day weekend depicted flooded areas in Mississippi and cars stranded in several inches of rain in the Dallas-Fort Worth metroplex.
New Orleans is under a flood watch until 7 p.m. local time on Tuesday, with showers and thunderstorms anticipated to continue into the evening. Rainfall could reach up to an inch, with some areas possibly seeing up to 2 inches.
Meanwhile, Atlanta is also under a flood watch until 11 p.m. local time Tuesday, with rainfall ranging from 0.75 inches to 1.25 inches, and isolated areas potentially receiving up to 2 inches. Both New Orleans and Atlanta might experience hourly rainfall rates of 1 to 3 inches, risking flash flooding even in places not under flood watch.
More precipitation is forecast for the region throughout the week, although specific rainfall totals remain undecided.

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