Severe thunderstorms are set to return to the corridor from Little Rock to Oklahoma City to Dallas to close out Wednesday.
A line of violent thunderstorms is expected to drop down from southeastern Kansas and into eastern Oklahoma and western Arkansas Wednesday afternoon.
The thunderstorms will then expand to the south and west, racing into central Oklahoma and northeastern and north-central Texas through Wednesday evening.
Cities in the path of the severe weather include Little Rock, Fort Smith and Texarkana, Arkansas; Oklahoma City, Tulsa and McAlester, Oklahoma; and Dallas, Tyler and Wichita Falls, Texas.
Stretches of interstates 20, 35, 40 and 44 lie within the threat zone.
Damaging winds and flooding downpours are the main dangers from the severe thunderstorms.
The downpours will also pose hazards to motorists, including those heading home from work, by dramatically reducing visibility and heightening the danger of vehicles hydroplaning at highway speeds.
Winds within the strongest thunderstorms could even overturn high-profile vehicles.
Airline passengers catching a late-day flight should prepare for delays and a temporary ground stop.
Fueling the severe thunderstorms later Wednesday is the very warm and humid air in place across the South Central states. Many places will record highs in the 90s before the thunderstorms roll through.
Wednesday's warmth is fairly typical for this time of year but a dramatic change from the unseasonable chill late last week.
The thunderstorms will wane and diminish by early Thursday morning, followed by building heat for Thursday and Friday.
Oklahoma City is set to record its first 100-degree day on Friday.