AlQa'dah 10, 1434, Sep 16, 2013, SPA -- Colorado's presumed flooding death toll rose to six, with more than 1,250 people unaccounted for and about 19,500 homes damaged or destroyed, officials said, according to UPI. The number of confirmed or presumed dead included an 80-year-old woman and a 60-year-old woman who disappeared in raging floodwaters, a Larimer County Sheriff's Department spokesman in Fort Collins said. Hundreds of National Guardsmen, sheriff's deputies and firefighters searched for more than 700 people still unaccounted for in Boulder and Larimer counties, officials said. "We have no idea if there are more victims," Boulder County Emergency Management spokesman Andrew Barth said. More than 550 people in the 13 other flooded counties were also unaccounted for, The Denver Post reported, meaning those people had not yet communicated with family, friends or authorities, the newspaper said. Early damage tallies by the state Office of Emergency Management indicated about 18,000 homes were damaged and more than 1,500 were destroyed. Almost 12,000 people were evacuated. President Barack Obama ordered Federal Emergency Management Agency Administrator Craig Fugate to travel to the Colorado Monday to "ensure the federal government is closely coordinating with the state and local response," the White House said Sunday. Obama called Colorado Gov. John Hickenlooper to get an update on the situation and express his concern for residents affected by the historic flooding the National Weather Service called "biblical."