Alert Details
Severity: Severe – Significant threat to life or property
Urgency: Future – Responsive action SHOULD be taken in the near future
Certainty: Possible (p <= ~50%)
Category: MET: Meteorological (inc. flood)
Event Description: Flood Watch
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, 12/19 through Sunday evening 12/20
* 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.
* AFFECTED AREAS: COAST RANGE OF NORTHWEST OREGON … WESTERN COLUMBIA RIVER GORGE … NORTH OREGON COAST … CASCADE FOOTHILLS IN LANE COUNTY … LOWER COLUMBIA AND I – 5 CORRIDOR IN COWLITZ COUNTY … NORTHERN OREGON CASCADE FOOTHILLS … SOUTH WASHINGTON CASCADES … CENTRAL COAST RANGE OF WESTERN OREGON … WILLAPA HILLS … CENTRAL COLUMBIA RIVER GORGE … SOUTH WASHINGTON COAST … WESTERN COLUMBIA RIVER GORGE … NORTHERN OREGON CASCADES … CENTRAL OREGON COAST … GREATER VANCOUVER AREA … SOUTH WASHINGTON CASCADE FOOTHILLS … GREATER PORTLAND METRO AREA … CENTRAL COLUMBIA RIVER GORGE … LOWER COLUMBIA … CASCADES IN LANE COUNTY … CENTRAL WILLAMETTE VALLEY … SOUTH WILLAMETTE VALLEY
Instructions:
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.