Detailed text transcripts for TV channel - MSNBC - 20150526:18:32:00
That came down the blanco river. very quickly and in a very powerful way. >> texas governor greg abbott will hold a briefing to update the situation coming up at 5:00 p.m. eastern and dave malkof has the latest from dallas for us. >> reporter: good afternoon, 30 million americans under the threat of either thunderstorms, more flooding even tornadoes today. it's a big state. we've got it all covered starting here in downtown dallas. that's the trin tri river over my shoulder. normally it's just a trickle and the water should be just to the tree line here. you can see it's way above major flood ...