Fox News Weather Center

More Rain On the Way For Flood-Ravaged Colorado

After flooding devastated parts of Colorado earlier in the week, more rainfall is expected Saturday night and Sunday across areas that don't need it.

As low pressure departs the Plains and heads into the Great Lakes Saturday night, high pressure building into the Plains from the North will send moisture up the Colorado Rockies once again.

This flow up the mountains will lead to additional rain and isolated thunderstorms through Sunday afternoon, which is not good news for communities from Boulder through Colorado Springs.

Four people have already been killed in Colorado floods and more than 170 people are still unaccounted for according to local authorities.

More rain will develop in the mountains Saturday evening before expanding into the Front Range through the overnight.

While the rainfall isn't expected to be nearly as heavy as earlier in the week, any additional moderate to heavy rainfall can lead to continued flooding problems with the ground saturated. Meteorologists expect a general 1-2 inches through Monday morning across flood-ravaged communities of Boulder and Lyons in the Foothills with higher amounts possible in the mountains.

Rainfall rates of around an inch per hour which can lead to additional flash flooding, as well as additional rises in area rivers and streams.

Check back with over the next few days as we continue to monitor the dangerous flooding in Colorado.