Meanwhile, a flood warning has been issued for the Nith River, where flows through New Hamburg are expected to peak on Friday afternoon based on the current forecast.
River levels will be on the rise through Friday night with a few expected to reach flood stage over NE Iowa and many others to come close to flood stage.
The alert, issued by the Government's flood information service, states: "River levels are rising as a result of the prolonged rainfall on Saturday 16/3/19". Officials on Friday said the river is expected to crest well below what was seen in 2011.
The emergency is for areas around Valley, west of Omaha, between the Platte and Elkhorn rivers after a levee failed on the Union Dike, the National Weather Service said.
The Union County Emergency Management says residents along the Missouri River should try to secure their property and prepare to evacuate.
Crews in parts of Nebraska were using boats to rescue people from floodwaters in which at least one person has died.
The two cities have implemented several measures such as home buyouts and levees since then.
The National Weather Service in Hastings, Nebraska is taking over duties from the displaced NWS employees in Omaha while the flood threat remains. Flood stage is 9.0 feet.
The midweek storm crippled parts of Colorado and Wyoming with blizzard conditions.
Continued rain chances, melting snow, and frozen ground mean flooding concerns are sticking around.
The storm also spawned at least three tornadoes in MI and in on Thursday, according to the National Weather Service.
Travelers already on I-29 North Drivers who are now heading north on I-29 should use U.S. 71 North north of St. Joseph to I-35 if possible.
Major to moderate flooding has been reported across Nebraska. "Widespread and extremely risky flooding will continue today and tonight", the National Weather Service office in Omaha wrote in an update Friday morning. Municipal flood co-ordinators are being advised to warn residents in Warning Zone 1.
"Turn around, don't drown when encountering flooded roads".