Major flooding is predicted along the Yakima River in Benton County.
The National Weather Service's forecast has the river reaching 16.01 feet by Wednesday morning -- flood stage at the Kiona gauge in Benton City is 13 feet, said Sara Schwartz, Benton County Emergency Services spokeswoman.
As of 3 p.m. Monday, the river was at 10.11 feet.
Emergency management officials are warning residents that there could be a repeat of flooding that affected the area in 2009, where 30 homes were damaged, she said.
High water could close several low-lying roads in north Richland and West Richland. Many areas in Benton City, including the city park, also could flood.
Widespread flooding of farmlands, roads and residential areas from Prosser to the Columbia River are expected to flood when the river hits 16 feet.