Violent thunderstorms and even some tornadoes threaten to close out the weekend across the Deep South.
Extreme southeastern Texas, southern Louisiana and southern Mississippi will become the target of the severe weather Sunday afternoon and evening.
The threat zone will expand to southern Alabama and the far western Florida Panhandle Sunday night.
Within this zone lies Beaumont, Texas; Lake Charles, Baton Rouge and New Orleans, La., McComb and Biloxi, Miss., Mobile, Ala., and Pensacola, Fla.
The strongest thunderstorms will be capable of producing damaging winds and flooding downpours. Drenching rain and thunderstorms earlier this weekend will make some areas more susceptible to flash flooding later Sunday.
There is also concern for some tornadoes to touch down and potentially cause destruction.
With the tornado danger encompassing the nighttime hours, residents are urged to plan ahead to make sure weather radios and alarms on other communication devices are turned on so that vital warnings are not missed.
Sunday's severe weather danger comes despite a cool Saturday across the Deep South.
Following occasional rain and thunderstorms through Sunday morning, the door will open for warmer and more humid air to surge northward and set the stage for the severe thunderstorms.
Triggering the severe weather will be the same storm system set to spread soaking rain across the rest of the East and parts of the Midwest Sunday through Tuesday.
Monday through Monday evening, more of northern Florida, Georgia and South Carolina will become the target of possible severe thunderstorms.
This includes Tallahassee and Jacksonville, Fla., Atlanta, Albany and Savannah, Ga.; and Columbia and Charleston, S.C.
The threat zone also encompasses Augusta National, Ga., where practice rounds for the 2014 Masters start on Monday.
While damaging winds will be the primary threat on Monday, a couple of isolated tornadoes may still occur.
Any lingering gusty and/or drenching thunderstorm on Tuesday will be confined to central and southern Florida as cooler air presses across the rest of the East.