00:00A massive flash flood threat is bearing down on the Gulf Coast as the same storm system.
00:05That spawned deadly Mississippi tornadoes shifts south.
00:09The Weather Prediction Center has flagged a slight risk of excessive rainfall.
00:13From the upper Texas Gulf Coast through the lower Mississippi Valley starting Friday,
00:18atmospheric moisture levels are at 1.75 inches and climbing,
00:22the kind of saturation that produces backbuilding,
00:26training thunderstorms over the same neighborhoods.
00:29Forecasters specifically named Houston, San Antonio, and New Orleans as urban centers in the bullseye.
00:35With renewed flash flooding risk through Friday night,
00:38Texas already saw widespread severe storms last night, and the warm front is now lifting north,
00:43pulling gulf moisture into already saturated ground.
00:47Drainage systems in southeast Texas and Louisiana have been overwhelmed before.
00:52Officials are telling residents to identify higher ground now
00:55and move vehicles before the water rises,
00:58when the rain trains over the same city for hours.
01:01That is when the deadly flash floods happen.
01:03The next 48 hours are the danger window.
01:06The next 48 hours are the danger window.
01:06The next 48 hours are the danger window.
01:06The next 48 hours are the danger window.
Comments