TEASER: Midwest flooding has residents on alert.
At least three people have been killed in Nebraska and Iowa after floods from last week's "bomb cyclone" winter storm that blew in from the Rocky Mountains.
Officials were searching for two other people, missing after a weekend of rescues and massive sand bag drops, aimed at curbing the floodwaters in hard hit areas.
Iowa Governor Kim Reynolds declared a state of emergency.
(SOUNDBITE) (English) IOWA GOVERNOR KIM REYNOLDS SAYING: "The emergency manager that's been in that position for 13 years said he has never seen anything like it, every single levy was overtopped, water coming in from every direction." A state of emergency too in Nebraska.
Areas along the Missouri River are facing evacuation.
The National Weather Service says that warmer temperatures could speed the rate of snow melt.
Officials say the Cooper nuclear plant in Nebraska has continued to operate safely, with staff and supplies flown in by helicopter.
But in neighboring Kansas, rivers are cresting and residents are bracing for floods..
And Mayor Jo Anne Smiley says Clarksville, Missouri is also making preparations..
(SOUNDBITE) (English) CLARKSVILLE, MAYOR JO ANNE SMILEY, SAYING: "There is a possibility that we will have a flood sometime." And amid the concerns are fears of contamination to drinking water... The damage is expected to be widespread, residents preparing for the worst.