Officials are preparing for a massive air rescue of people cut off and trapped in their homes after severe flooding in Colorado.
Days after dangerous floods, entire communities are still isolated because of washed out roads. On Sunday, The National Guard went into devastated areas looking for victims. They are urging people who have been cut off and unable to communicate to signal rescuers with sheets, mirrors, flares or signal fires.
Many evacuees have sought refuge in shelters, and left messages for people still unaccounted for. 1,500 homes have been destroyed and more than 17,000 damaged.
Even the rescuers are shaken, but say the recovery has already begun.
"Inch by inch, mile by mile, community by community, they're taking this stuff back, they're doing it, people are getting those things done out there," said Larimer County Sheriff Justin Smith.
At least four people are confirmed dead, including 19-year-old's Wesley Quinlan, and his girlfriend Wiyanna Nelson, who were killed Thursday when floodwaters overturned their car. Dozens attended a memorial service for the couple in Boulder Sunday night.