NORTH PLATTE, Neb. (AP) — A warning has been issued for flooding along the South Platte River in western Nebraska.

The National Weather Service says a combination of heavy rain in northeast Colorado and snowmelt from the mountains will engorge the river and cause significant flooding in Keith and Lincoln counties.

A gauge at Roscoe on Tuesday morning registered the river level only a few inches under flood stage of 9 feet. The weather service says the river is expected to crest at 12 feet there on Saturday evening.

The river is expected to crest a foot above flood stage on Monday morning at North Platte. The weather service says 14 feet at North Platte could cause flooding of yards and basements, and storm drains could back up.