This order comes as the Houston Fire Department will begin going doortodoor searching every home in the hardest hit parts of the city because they still dont know how many people weathered the storm in their home, how many are still stranded. They need to look inside those homes today. Youre 100 right. Theyve been overwhelmed by the need. They always expected the water to crest later in the week. The question is can they handle that . Well have to see. More breaking news as well. At least two explosions at a flooded Chemical Plant in crosby, texas, about 25 miles northeast of houston. Ten sheriffs deepities rushed to the hospital after inhaling the fumes from the plant. People within a mile and a half have been told to leave their homes. The question is, can they . Another emergency unfolding further east in beaumont, texas. That citys two sources for water have been cut off by this historic flooding. The pumps have failed because of flooding they cant assess until the water level goes down. Cnn has teams in place on all fronts. We begin with Polo Sandoval in richmond, texas. Polo, whats the situation there . Reporter chris, this latest round of mandatory evacuation adds to the ones already in place in fort ben county texas where the bra soz river continues to right. Officials in houston are preparing to do these doortodoor checks on some of these homes, some of which are still flooded at this hour. Hearing from houston officials, telling cnn this will be a long and time consuming process. Well be doing a block by block, door by door search of structures that we believe have had three feet of water or greater to assure there have been no people left behind. This will be a one to twoweek process to address the areas hardest and most impacted. Back on the banks of the brazos river. This water is expected to go up at least another foot and a half, alisyn. For the most part, these communities on the banks of the brazos river are empty at this hour. Many of these people have already evacuated with their family and priceless belongings. Lets hope everybody has evacuated. Joining us is alan spears at the Fort Bend County office of emergency management. I know its a very busy morning. What changed last night thats causing this emergency evacuation now . Well, what happened is we had a one night stay of good weather, so people in some of our areas that thought it was safe to go back in didnt realize that we still have flooded streets and still have a lot of flooded homes, and we had people with families and small children trying to get back into those areas, and theyre just not safe to go into yet. Tell us about the reservoir. As we understand it, its now at 101 feet, and that is its breaking point basically. Yes. On monday we ordered a voluntary evacuation for the Barker Reservoir. At that time it was predicted to go to 104 feet which is, as far as i know, a record. Im told now that its steady at 101 feet, but that is one of those areas that it did get flooded and a lot of parts of that area, we have had nice weather and people are trying to go home. On the recommendation of the sheriff, he wanted to go ahead and initiate the mandatory evacuation strengthly for the security of the area. We just dont want people and their families going back to flooded homes yet. Its just not safe. Understood. This is exactly what officials warned about days ago with this storm. You would think the worst had passed because it would no longer be raining, and it would give people this false sense of confidence. Theyd return home. With this particular storm theres all these repercussions that are going to happen. We know dams are having to be released to relieve the pressure there and now reservoirs may start to spill over. This is what officials didnt want to happen because neighborhoods could be completely flooded. We drove around yesterday with the cajun navy looking for people still trapped in their homes after the dam had been released. What are you telling people who are watching at this moment to do . Right now, the Barker Reservoir is in good shape. It is holding the water back exactly the way it was designed. The army kofrps of engineers is doing a good job regulating the waut earl going out of the reservoir. The fact of the matter is, the reservoir is getting a lot of water from up stream areas that has filled the area. And right now its at capacity and its got to go somewhere, so its working its way through the street system and into streets and things like that and into some homes unfortunately. How many people are affected by this mandatory evacuation . Its hard to say because i cant really tell you how many people heeded the voluntary evacuation that we ordered on mond monday. Were hoping its minimal, but at this time i cant really say. Mr. Spears, this is the issue. Im here at the Convention Center that is a shelter and housing all these people that have evacuated their homes. Its gone from 8,3000 people down to 2,500. People have returned to their homes. Theyre not comfortable in shelters and want to get back home to their belongings. How are you going to make sure these people get out this morning. Oh, yeah. Part of that is a lot of people had to evacuate because of the massive amount of rainfall that did flood the streets and homes. The flood gz were receiving at the Barker Reservoir, it is from the hurricane but it is coming from up stream and it is still collecting. So streets are emptying out and people do see that and they do sometimes have the false belief that it is safe to go home, but in some areas its just not yet. Understood. So we are here this morning to try to broadcast to everybody it is not safe. There is a mandatory evacuation this morning near the Barker Reservoir. Allan spears, thank you for helping us get the word out. Also breaking news this morning. There have been these two explosions we need to tell you about. Theyve gone off just moments ago at a flooded Chemical Plant in crosby, texas. This is about 25 miles northeast of where im standing in houston. Black smoke is coming from the ar keep ma plant. The Company Operating the plant fears this plant could catch on fire at any time. Ten sheriffs deputies are now in the hospital after inhaling fumes from this plant. So people within 1 1 2 miles of the plant have been evacuated as a precaution. We have a team on the way to the scene. So we will bring everyone all the updates we have as soon as they develop. This is exactly what was feared with the Chemical Plants around this flooding area, and now its happened. Theres more breaking news. The floodravaged city of beaumont, texas, has lost both water supply sources after the main pump and a backup failed because of the rising floodwaters. Thats where we find cnns drew griffin live in beaumont. Give us the latest there. Reporter to just add to the misery factor, i turn on the spigot this morning to brush my teeth and air came out. At 12 30 last night or early this morning, the city of beaumont sent out an alert to all the residents that the main pump for the water supply on the river has failed. They dont know why yet. So 118,000 people in the city of beaumont now without water on top of Everything Else they have to deal with. Many of them did not have time to do the precautions necessary because this alert came out in the middle of the night, fill the bathtub, make sure you have water to flush the toilets, that did not take place. So if people did not do that prior to this emergency, it could get really miserable. On the fix, they just dont know yet. Theyve got to wait until daylight. Theyre going to take a boat out to that pumping station and see whats wrong. If it is a major fix, if something needs to be physically fixed, apparently from the Fire Department, they need to wai wa until the water in the river goes down, water that has president even crested yet. This morning its dark. A lot of the rescues in Jefferson County have ceased overnight. The water has not gone down at all. I was there tuesday. It looks exactly the same as it was tuesday. Its now thursday morning. This water is everywhere. Chris, thank you. Drew, thank you very much. Youve been doing important, important work down there as a journalist and as a concerned human being. Lets take a chelk of what is going on. Harvey has weakened to a tropical depression. Thats good news but it doesnt really matter. The water thats already in place, as you heard from that city manager, it has to go somewhere. Its going to create flood risks. Cnn meteorologist chad myers has the latest forecast. Im being careful because people think the storm is gone so the danger is gone. And those two things dont go together necessarily. Not when theres stillwater uphill that has to come downhill into your neighborhood. It rained in a lot of place is, not just where you live. All that water has to come down from the northern part of the state, all the way from san antonio through the colorado and back to sanya sin toe from the northeast part of the state. Theres more rain fall today right now into louisiana. Theres been very heavy rainfall in beaumont and port arthur overnight that wont shut off. The heaviest raen today is somewhere near memphis. Even nashville could see six synchs. Thats not 40 or 50 like they saw in houston. Getting back to houston, we have 30 reservoirs, 30 rivers, 30 gauges that is above major flood stage. So lets get to this evacuation were talking about. Its a new evacuation. Here is the Barker Reservoir. You see all the brazos river. We ear talking about barker and addicks. Ive been talking about addicks most of the week. Here is addicks. It came completely full where the water came over the sides of the reservoir. This is 108 feet. The dam is about 114. They were letting it out as fast as they could. We talked about this, all these homes built here inside the reservoir, they flooded. The same thing is happening in barker. Barker coming back here. Its coming in faster than it can go out. The residents that built back here, all those developers that built below the top of the levee, all those houses are being evacuated now. They probably already were. It was voluntary. Now its mandatory. The water cant get out of the release point fast enough. If you build below the top of the leavy, some day its going to flood. Understood. Chad, thank you very much for that update. So now we have this terrible tragedy to update you all on. Perhaps you have heard about this sandivar family. Six members of a family that were in a van who disappeared into the river. There were two grandparents and four great grandchildren, aged 16, 14, 8 and 6. One of the saldivas sons was able to get out as the van disappeared. Yesterday we spoke with another one of the brothers, rick, about this unimaginable loss of six members of his family just as the van was found. Listen to this. I see your hall of photos. Tell me about some of them. Of course, this is mom when she was younger. She sent this picture to her mother actually. Thats whats written there. Beautiful. And dad, he was in the air force. This is during the korean war. Yes. When you knew Hurricane Harvey was heading here, your family came up with a plan. What was that plan . The day before i told sammy, i said what are you planning on doing . He said, well, im going to stay. In the water starts coming up, ill put them in my truck and take them to your house. I said okay, that will work. But then something went wrong with that plan. What happened . Fell asleep. My wife was texting with him. He said im a wake. He sent us a voice mail which we didnt hear because we fell asleep. It said i fell asleep, the water is in the house. Its me, i guess were going to get out of here. I fell asleep and the neighbor just woke us up. The water started coming in the house. I dont know where were going. Okay. Buy. So then when he realized he had fallen asleep, it was starting to get too late, the water was encroaching on their vows but he figured out he could still get out because the brother had left a van. Yes, we called danny. He said go to my house, i got my van there. You can get the keys, you can take them to ricks house. Sammy got in the house and dried up mom and dads clothes, put them in the drier, made them some breakfast and got everybody in the van. Now, at the same time danny said could you go across the street, because his grandkids were across the street, go across the street and get my grandkids and take them to ricks house. Sammy said yeah, i can do that. What did you recommend . I told him, if youre going to leave, you better leave now because that neighborhood in allison flooded. Its going to get bad. You better get over here now. He put them in the van. He was coming this way. After that, i dont know, i guess about 9 00, 10 00 in the morning werks lost contact with him for about two hours. Nobody knew where sammy was. How did you find out what had happened across that bridge . Well, my sisterinlaw called me and said she was hysterical. Sam lost control of the van. Mom and dad are gone, my kids are gone i said what are you talking about . Sammy lost control of the van and its in the buy you. I finally got ahold of sammy. Of course, he was barely able to talk. He was saying that he was going down lay road, or green river, lay road. They came up to a bridge where lay road and green river come together and the bridge was overflowed, dad said go, you can make it, i can see the guard rail, go. You listen to your dad. Dad was real demanding even at 84 years old. So he went. Like i told sammy, i cant see myself doing anything different. Dad told me to go, i would have tried to make it. Of course, like anybody else, he panicked. He said him, mom and dad were under water, they were under wart and he got out of the van, he didnt even take off his seatbelt. The window was halfway open, he just slid out. He grabbed a branch or a twig, what he called it. He called it a twig. I dont know if it was a branch or a tree or what and the kids were screaming. He could hear them screaming or crying. Of course, they wanted out of the van. He kept telling them to get out the back door. Thats one of the most heartbreaking starts of this heartbreaking story is your brother witnessed it all happening. Yeah, the van go down knowing his parents are in it, his great nieces and nephews are in it. Its his brothers our brother danny, his grandkids. How did you get the word today that they had actually found the van . Danny called me and said his son andrew found the van. By himself . He went over there by himself to find it. I dont know if he had anybody else. He just told me andrew was there and he could see the van under the water. He told you that they had found the bodies . Well, basically, i knew then they said a diver went down and they could see two adults in the front seat. They couldnt see in the back of the van. You were very close with your parents . Oh, yes, yes. All of us were. And to lose them so suddenly is a bigger challenge. Yes. But at their age, you start getting ready for it. You start keeping little messages that dad puts on your phone. But you wanted a memento of your parents. Yes, i wanted to hear, like he was calling me on the phone. Sorry. Yeah. I just wanted to hear that. So many people around the country and ar round the world have heard your story. Its gripped the whole country. My neighbors came over and gave me a hug. Whatever you need, everybody is just, whatever you need. I guess they can imagine going through Something Like this. Like i told the sheriffs, im just so glad you saved my brother. I didnt want to lose my brother. Chris, obviously unimaginable to lose this many family members at once, to have the brokter there to witness it. You heard rik say theres been beautiful things that have happened, neighbors, family, coworkers who have reached out and offered help. Theres also, and i want to let our viewers know this, sickening stories of scammers trying to cash in on the sandivar situation. Because of that situation, we want to put up the real one. This is the verified account. This is the verified one and it says at the top, verified family account. You can see these pictures there. Listen, the family isnt asking for anything. Theyre not asking for any money. Theyre just asking to be kept in peoples prayers. So what can we say. This is one of the stories, but also one thgripped. There are good people and bad people. Who knows what the needs are going forward. That story is about as tough as it gets. People should take solace that we havent heard more hopefully the neighborhoods covered up by this water are not hiding horror stories. Thank you, alisyn, for bringing that to us. Amid these harrowing stories of loss, there is a story of great hope, neighbors banding together to get a pregnant woman to the hospital to give birth on time. Time. That new mom joins us next. And resilient for a time the more that we can strengthen and reharden that tooth surface, the whiter their patients teeth are going to be. 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This is not the cloud you know. This is the ibm cloud. Built for your business. Designed for your data. Secure to the core. The ibm cloud is the cloud for enterprise. Yours. Whyoure not thinking clearly, yours. So they called the Fire Department for us. I could hear crackling in the walls. My mind went totally blank. All i remember saying was, my boyfriends beating me and she took it from there. And all of this occurred in four minutes or less. I am grateful we all made it out safely. People you dont know care about you. Its kind of one of those things where you cant even than