A flood watch has been issued to run from 11 p.m. Saturday until 11 p.m. Sunday. (File photo by Brad Fuqua/Philomath News)

The National Weather Service’s Portland office issued a flood watch to be in effect from 11 p.m. Saturday until 11 p.m. Sunday for portions of west-central Oregon, including Benton County.

A forecast for Philomath predicts daily rainfall for the next several days.

Marys River flow data predicts that it will not reach flood stage — which is considered to be 20 feet — with a crest of 16.67 feet within the period of the flood watch. As of 10 a.m. Friday, U.S. Geological Survey data showed the river level at under 8 feet.

“Excessive runoff may result in flooding of rivers, creeks, streams and other low-lying and flood-prone locations,” the National Weather Service said through a flood watch alert. “Flooding may occur in poor drainage and urban areas. Landslides and debris flows are possible during this flood event. People, structures and roads located below steep slopes, in canyons, and near the mouths of canyons may be at risk from landslides.”

Residents in areas that are prone to flooding are advised to be prepared to take action should flooding develop.