rain. this storm is far from over. the national weather service warns life-threatening flooding is copying. the coast guard getting more than a thousand rescue calls every hour. tonight we'll have stories from some of the people who narrowly escaped the raging floodwaters and some who are still trapped. the forecast as the storm gathers strength. it's gaining strength tonight. let's go straight to derek van dam in sugarland, texas, for us. good evening to you. the latest on the certainly and rescue efforts where are you right now? >> reporter: well, good evening, don. the thing about the search and rescue efforts, it's complicated by the nighttime. the dark, darkness has set in across houston and with conditions can like this, it is extremely treacherous. last night we joined some of the search and rescue efforts and we saw firsthand what they have had to deal with. they navigate these flooded neighborhoods with sometimes the