From the National Weather Service, Portland.
The National Weather Service in Portland has Issued A
* Flood watch for Portions of Northwest Oregon and Southwest Washington, Including the Cascade and Cascade Foothills, Coast Range and Willapa Hills, Columbia River Gorge, Willamette Valley and Greater Portland Metro Area, Lower Columbia and I – 5 Corridor in Cowlitz County, Northwest Oregon and Southwest washington Coast.
* from Saturday Afternoon Through Sunday Evening
* Series of Fronts will Bring Heavy Rain Across Much of the Area.
Excessive Rainfall Could Lead to River Flooding As Well As Flooding in Small Streams and Urban Areas. Rain Across the Cascades Could Cause Debris Flows Across Burned Areas.
A Flood watch Means There is a Potential for Flooding Based On Current Forecasts. You Should Monitor Later Forecasts and be Alert for Possible Flood Warnings. Those Living in Areas Prone to Flooding Should be Prepared to Take Action Should Flooding Develop.
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 Serious Risk From Rapidly moving Landslides.