A special good evening to our viewers in the western half of the u. S. Tonight. As you may already know in the state of colorado tonight there is an unfolding Natural Disaster of huge proportions. The death toll stands at three going into the night after widespread flooding knocked out power, closed roads and forced hundreds of people today to move to higher ground. The worst of it is centered in and around boulder, colorado. Nbcs Miguel Almaguer starts us off from there tonight. Miguel, good evening. Reporter brian, good evening. We have had pounding rain here all day long. Thats not a river behind me. It is a road. The National Guard has been called in after lives were lost. This entire region in a state of emergency. Flash flooding is imminent. Reporter a day of chaos and confusion as torrential rain pounds boulder, washing away homes, cars and causing at least three deaths. They may not let you go up that far. Reporter with thousands forced to evacuate, many were trapped by washedo