Widespread flooding that’s already killed three Coloradans forced fresh evacuations of thousands of residents Friday, as additional rainfall threatened already swollen rivers and creeks along a 150-mile stretch of the state’s Front Range.

About 15 miles north of Boulder, the Colorado National Guard began evacuating 2,000 residents of Lyons — isolated, without power and running water because of flooded roads Thursday — at daybreak, according to the Boulder County sheriff’s office. In South Boulder County, 500 residents in Eldorado Springs were also under evacuation orders. County emergency personnel said the Guard was using high-clearance trucks to move Lyons residents to safe areas.