WALLA WALLA - People living near creeks, streams and small rivers are being warned to watch for possible flooding tonight and Friday.
According to the National Weather Service, a combination of heavy rain and snow melt will cause increased runoff and rapid rises in waterways, although no flooding of large rivers is expected.
A warm moist southwest flow of air will continue over Northeast Oregon and Southeast Washington tonight with some periods of heavy rain expected through early Friday.
Rainfall amounts of .75 to 1.5 inches may been seen along the west-facing slopes of the Blue Mountains with the greatest amounts north of Walla Walla, across the Blue and Wallowa mountains.
Rainfall amounts in other areas are expected to range from .50 to 1 inch. Snow levels will be between 6,000 to 7,000 feet.
Cooler air will filter into the region on Friday with water levels expected to begin receding by early Saturday.