The severe threat has lessened this evening and there is now a GENERAL risk for thunderstorms for the overnight hours and a low threat for severe due to the loss of daytime heating. An isolated storm will be possible, but there will be limited precipitation through the overnight hour for Texas and Louisiana.
In addition to the severe weather, there is an ongoing flood threat. Many places in the Central and Southern Plains have already seen over 9" of rain in the past few days. This means the ground is already highly saturated in some spots, making it more likely to flood. The Weather Prediction Center has maintained a MARGINAL to SLIGHT risk for flash flooding through Tuesday morning in these areas.