An arsenal of new technology is being put to the test fighting floods this year as rivers inundate towns and farm fields across the central United States.
Vice President Mike Pence will travel to Nebraska to survey damage from flooding in the Midwest.
Officials say a levee near a subdivision of homes in a county south of Houston has been breached and water is pouring into the area.
More than 2,800 people remain in shelters a week after the devastating flooding that wrecked homes across south Louisiana. The storm and its flooding have damaged an estimated 60,000 homes and forced thousands to seek temporary housing.
Gov. Jay Nixon of Missouri and Gov. Bruce Rauner of Illinois toured flood-ravaged areas Saturday as near-record crest predictions of the Mississippi River and levee breaks threatened more homes.
The worst of the dangerous, deadly winter flood is over in the St. Louis area, leaving residents of several water-logged communities to spend the first day of 2016 assessing damage, cleaning up and figuring out how to bounce back - or in some cases, where to live.
President Obama has been walking through the streets of New Orleans, on a visit marking the 10th anniversary of Hurricane Katrina.