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 (CNN) The ferocious Blanco River surged into the Perez family's vacation home, blowing the door off its frame. 
 
 "Oh no!" Sarah Perez cried from the second floor. 
 
 The torrent of brown water filled the Texas house, creating a whirlpool of chairs and tables. 
 
 "It turned the living room into a gigantic washing machine," Ernie Perez said. 
 
 His wife wondered aloud whether she should call 911. 
 
 "911 is not going to be able to get to us," he replied. 
 
 The Blanco River gushed into Sarah and Ernie Perez's vacation home in Wimberley, Texas. 
 
 Fortunately for the Perez family, firefighters were already in that part of Wimberley, Texas, to check on an elderly neighbor. 
 
 "We see flashing lights in the distance. We saw a fire crew with two trucks and a boat," Ernie Perez said. "My brother whistles and gets their attention." 
 
 The rescue Saturday night was like a movie, he said, with boats, lines and emergency workers ferrying his family into the dark. 
 
 The Perez family managed to survive, but many did not. 
 
 At least 37 people have died in the severe weather over the past five days, from either tornadoes or flooding brought on by epic rainfall. Those deaths include 17 in Texas, 14 in northern Mexico and six in Oklahoma. 
 
 Nine people remain missing in Texas. 
 
 And it's not over yet. 
 
 More downpours, possible flooding on the way 
 
 Houston, one of the hardest-hit cities in the flooding, could see more storms for at least the next five days, the National Weather Service said. 
 
 JUST WATCHED Race to find survivors after Texas flood Replay More Videos ... MUST WATCH Race to find survivors after Texas flood 02:38 
 
 What's worse: Areas farther north, including Dallas, could get another 2 to 4 inches of rain through Sunday, and parts of eastern Oklahoma will get deluged with 4 to 6 inches of rain. That means runoff could rush downstream to Houston, inundating parts of the city once again. 
 
 Southwest of Houston, officials in Wharton, Texas, called for a voluntary evacuation on the western side of the city Wednesday as forecasters warned that the Colorado River was likely to rise above flood stage by Thursday. 
 
 Many homes on Wharton's west side are already flooded with up to 3 feet of water, the National Weather Service said. 
 
 In Parker County, west of Fort Worth, authorities issued a voluntary evacuation order for 250 homes along the Brazos River, which is expected to crest 3 feet above flood stage in the coming days. 
 
 And in flood-stricken Hays County, where eight people remain missing, officials are bracing for more havoc. 
 
 "We're very vulnerable right now," Hays County Commissioner Will Conley said. "If we were to receive a small amount of rain, we could be right back into an emergency situation." 
 
 Tornado hits oil rig 
 
 In the Texas Panhandle, another storm Wednesday night spawned a tornado that hit an oil rig, Julie Boydston of the Hemphill County Sheriff's Office said. 
 
 Three people were injured, but bad weather has made it difficult to get them to hospitals. 
 
 "We had tornadoes dropping everywhere," Boydston said. "Ambulances (are) driving through the mud." 
 
 More bodies found 
 
 While the mammoth flooding from this week slowly subsides, the death toll continues to rise. 
 
 JUST WATCHED Rescuers risk their lives to save flood victims Replay More Videos ... MUST WATCH Rescuers risk their lives to save flood victims 03:53 
 
 On Wednesday, crews found a boy's body on the banks of the Blanco River, Hays County officials said. 
 
 The body of Michelle Carey Charba was identified Wednesday, police said. 
 
 Charba was last seen near the Blanco River, as were her husband, son and parents -- all of whom remain missing, Kellye Burke, a friend of Charba's, said at a press conference Thursday. 
 
 In Houston, after using water pumps, crews found a 31-year-old man in a car parked along an entrance ramp to U.S. 59, the city said. 
 
 That marked the sixth death in Houston, where one person is still missing. 
 
 In nearby Fort Bend County, deputies found a body Wednesday believed to be a 73-year-old woman who'd been missing since she failed to show up to work at a convenience store Monday night. 
 
 The next day, her daughter spotted her car submerged in a creek. The body was found 50 yards from that spot, Fort Bend County Sheriff's Office spokesman Bob Haenel said. 
 
 1,400 structures in Houston damaged 
 
 In addition to hundreds of stranded vehicles, some 1,400 structures in Houston suffered severe damage as waters crept up. 
 
 JUST WATCHED Wall of water demolished parts of Texas Replay More Videos ... MUST WATCH Wall of water demolished parts of Texas 02:47 
 
 Saundra Brown recalled her daughter waking her early Sunday with news that "the bayou was rising." 
 
 As the family rolled up their rug, someone knocked on the door asking for shelter after getting stranded in a vehicle. Soon, it became apparent nobody was going anywhere. 
 
 "We just told everybody, 'Get on the couches,' " Brown said. "Then we put the family on the dining room table. (We moved to) the counters next. And if it was going to rise more, we'd go on the roof." 
 
 Six hours later, it was finally safe to get their feet back on the soaked ground. The days since have been spent bunking with friends and cleaning up. 
 
 "It wasn't fun," Brown said. "We're lucky to have a big support structure." ||||| AUSTIN, Texas Hundreds of people fled areas near Texas rivers that overflowed their banks on Thursday as the state reeled from severe storms this week that killed at least 16 people, flooded cities and set a record for the wettest month. 
 
 The National Weather Service issued a flash flood watch on Thursday stretching from south of San Antonio to Dallas, through Oklahoma, where severe weather this week killed an additional six people, and into Kansas. Thunderstorms pelted large parts of the affected region on Thursday. 
 
 The city of Wharton, about 60 miles (100 km) southwest of Houston, issued a voluntary evacuation notice for about 300 homes along the Colorado River, where water began spilling over the banks on Thursday afternoon and was expected to rise through Friday. 
 
 The Brazos River has flooded about 30 miles (50 km) west of Fort Worth and is expected to crest on Thursday evening. Hundreds left their homes on Wednesday as the waterway began breaching its banks, Parker County officials said. 
 
 State climatologist John Nielsen-Gammon said on Thursday the average rainfall across the state was 7.54 inches (19 cm) in May, breaking the record of 6.66 inches (17 cm) set in June 2004, according to records that date to 1895. 
 
 "It has been ridiculous," Nielsen-Gammon said. 
 
 The body of a boy was recovered on Wednesday near the central city of San Marcos, Hays County officials said. The boy, who has not been identified, was thought to have been swept away in Blanco River floods that ripped houses off their foundations, county officials said. 
 
 There were eight people missing in the county after the flooding, which started on Monday. 
 
 The new storms could hinder rescue workers who have been searching for days for those washed away in floods along the Blanco River. 
 
 "We are not expecting another surge of the river but it is going to shift debris piles," Kharley Smith, the county's emergency management coordinator, told a news conference. 
 
 President Barack Obama has pledged federal support and said the U.S. government had been working with local officials. 
 
 "They appear to have the assets they need at this stage to respond, but there’s going to be a lot of rebuilding," Obama said in Miami on Thursday during a tour of the National Hurricane Center. 
 
 There was no damage estimate available for Texas, which has a $1.4 trillion-a-year economy and is the country's leading domestic source of energy. 
 
 (Additional reporting by Jim Forsyth in San Antonio and Roberta Rampton in Miami; Editing by Eric Walsh and Peter Cooney) ||||| Play Facebook 
 
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 Scores of people were rescued from flash flooding in central Texas early Friday, as emergency responders throughout the state struggled to cope with another round of storms during the wettest May on record. 
 
 In Dallas alone, more than 200 people — all believed to be in cars — were rescued from flooding in the city overnight, according to the Dallas Office of Emergency Management. Nearly 7 inches of rain fell on the city, but there were no immediate reports of injuries or deaths, assistant emergency management coordinator Kevin Oden told NBC News. 
 
 Full coverage from NBC Dallas-Fort Worth 
 
 Waterlogged highways and roads around Dallas became parking lots through the morning for drivers trying to get to work. The local Red Cross delivered Girl Scout Cookies and water to stranded drivers, reported NBC Dallas-Fort Worth. 
 
 Officials have been closely watching rising rivers and creeks in Texas after heavy rains last weekend. At least 27 people have died and 13 went missing in flooding across the state this week. Another victim was identified Friday as Jack Howard Alter, 87, who disappeared in Houston following an attempted water rescue by emergency responders. 
 
 The latest flooding alerts have been widespread, extending nearly 800 miles from southern Texas to central Missouri, according to The Weather Channel. 
 
 Tarik Hawkins, a 30-year-old who works for a Dallas freight company, said he became stranded while trying to drive to work. 
 
 Flash #flood emergency from Garland to Allen Texas until 7:15 am CDT. Travel has become impossible in many areas. pic.twitter.com/QeDUL1Yp05 — The Weather Channel (@weatherchannel) May 29, 2015 
 
 Speaking to NBC News from the side of the road, Hawkins said it had taken him two hours to drive about a mile and described the situation on the road as "very chaotic." 
 
 He added: "It's extremely dangerous out there. I drive a Mustang and in some areas the water has been coming up to the hood. The people who have tried to drive through have become stuck, so there are tow trucks and fire trucks rescuing people. 
 
 "I've never seen anything like this before. I have seen some severe weather, but this extremely dangerous." 
 
 5 cars submerged in water on Northwest Hwy at Harry Hines Blvd. @NBCDFW pic.twitter.com/tO0ZWugiO9 — Ellen Bryan (@EllenBryanNBC5) May 29, 2015 
 
 Tow-truck driver Robert Levtzow, was stranded on a flooded Dallas street after responding to a police call. 
 
 "I was trying to put in reverse to get out and it died off and the water started rising immediately," he told The Weather Channel. "I was scared, didn’t know really what to do [so] I called my wife immediately." 
 
 Israel Ramos, 32, a tower inspector at a communications company in Dallas, said there was 3 inches of water inside his home and the street outside resembled "a river." 
 
 He said his neighbor called the police after seeing an SUV floating down the street with a person trapped inside. "They had to be rescued by the fire department," he said. 
 
 Officials in Johnson County, about 54 miles south of Dallas, said they had evacuated about 12 people caught in flooding overnight — including some rescued from "homes inundated with water." 
 
 Other incidents involved vehicles and authorities instructed residents to stay off the roads for their own safety. 
 
 Johnson County emergency management coordinator Jamie Moore told NBC News that 45 roads had been closed in the area by 3:30 a.m. local time (4:30 a.m. ET). About an hour earlier, his agency tweeted that "rescue requests continue to flow in." 
 
 Serious flooding ongoing from Johnson into SE Tarrant & Dallas Co. Very dangerous situation! #dfwwx pic.twitter.com/idmjzZ5z31 — NWS Fort Worth (@NWSFortWorth) May 29, 2015 
 
 In the Austin suburb of Volente, emergency workers recovered a houseboat with 16 people aboard that went adrift in the record floodwaters. There were no injuries, fire officials said. 
 
 Flood warnings were issued for 21 communities and flash flood warnings for six, including western Dallas, according to NBC Dallas Fort-Worth. Hail, tornadoes and thunderstorms also remained a possibility. 
 
 About 6,700 people in Dallas County were without power as of 10 a.m. local time, with another 1,000 customers in the dark in Collin County, 1,600 in Tarrant County and 181 in Denton County. 
 
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 The hardest-hit area on Thursday night was the corridor running from Laredo on the border with Mexico up through Dallas and over into Oklahoma City, according to The Weather Channel's Michael Palmer. 
 
 Palmer added that the past month had been the wettest May since records began in the late 1800s. 
 
 There has been enough rain across #Texas during May to cover the entire state nearly 8 inches deep. That's over 35 trillion gallons! #txwx — NWS Fort Worth (@NWSFortWorth) May 29, 2015 
 
 More than 100 flights were canceled or delayed going in and out of Dallas-Fort Worth International Airport on Friday, according to FlightAware.com. 
 
 Dallas officials warned commuters to be extremely cautious while driving. 
 
 "If you see water on the roadway even if you think it is 1 inch don’t attempt to drive through it ... if there are barricades up on the road, they're there for a reason," Oden told NBC News. ||||| Starting in 1996, Alexa Internet has been donating their crawl data to the Internet Archive. Flowing in every day, these data are added to the Wayback Machine after an embargo period.
– An Anheuser-Busch brewery in Georgia began filling its cans with something other than beer late Wednesday night to help those affected by flooding in Texas and Oklahoma. "Right now our production line is running emergency drinking water," the Cartersville brewery manager told NBC News. The brewery—one of 12 Anheuser-Busch operates in the US—has directed about 2,000 cases of 24 cans to the battered states. It's not exactly a novel move for the brewery, which partners with the American Red Cross to produce emergency water a few times each year. "There are a lot of folks in need," a Red Cross rep says. And their ranks could swell: CNN reports battered Houston could be in for five more days of storms, and up to 6 inches is expected in some areas of Oklahoma through Sunday. Flood and flash flood warnings were issued yesterday for more than 20 communities, including the Dallas area, where up to 6 inches overnight caused major flash floods; more than 100 flights in and out of Dallas-Fort Worth were canceled yesterday and today. Some 50 miles south in Johnson County, a dozen people had to be rescued overnight, in some cases from "homes inundated with water," NBC News reports. Reuters reports this month has been the wettest May on record in Texas, with the average rainfall hitting 7.54 inches to beat June 2004's 6.66 inches. The bit of good to come from the bad: As of Tuesday, only 5% of Texas was experiencing drought conditions, per the US Drought Monitor; one year ago, that figure was 71%.