BOULDER, Colo. — The search for people stranded from the Rocky Mountain foothills to the plains of northeastern Colorado grew more difficult Sunday, with a new wave of rain threatening to hamper airlifts from the flooded areas still out of reach.

Numerous pockets of individuals remain cut off from help even with more than 1,750 people and 300 pets already rescued from communities and individual homes swamped by rivers and streams overflowing by unrelenting rain last week, but, officials said.

Twenty military helicopters planned to expand the search from Boulder County east to Fort Morgan, but the window of opportunity was closing with clouds rolling in and up 2 to inches of rain expected to fall.

An 80-year-old woman in Larimer County's Cedar Cove was missing and presumed dead after her home was washed away by the flooding Big Thompson River, officials said Sunday.
The woman was injured and unable to leave her home Friday night, sheriff's spokesman John Schulz said.

The number of confirmed flood fatalities stood at four but was expected to rise. Hundreds of people remained unaccounted for though most are likely just stranded, officials said.

The river was expected to flood until at least Tuesday, and Crone worried the new rain could send another surge of water down the river, Crone said.
"We lost every bridge crossing east to west and we are cut in half," he said.

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