TILLAMOOK COUNTY EMERGENCY MANAGEMENT ADVSIORY: Flood Watch from Saturday afternoon, Dec. 9th until 07:00PM Sunday, Dec.10th

* WHAT…Flooding caused by excessive rainfall is possible.

* WHERE…A portion of northwest Oregon including the Coast Range of Northwest Oregon and North Oregon Coast.

* WHEN…From Saturday afternoon through Sunday evening.

* IMPACTS…Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations.

* ADDITIONAL DETAILS… – A moderate to strong atmospheric river will bring another period of steady rain that will be heavy at times, late Saturday into Sunday. Soils are saturated and will allow much of the rain to runoff, particularly during periods of intense rainfall. The most likely scenario is for 1.5-2.5 inches of rain to fall along the immediate coast and 3-4 inches of rain to fall across the north Oregon Coast Range. However, there is a 25% chance that 5-7 inches of rain will fall during an 18-24 hour period across the north Oregon Coast Range. The latter scenario would lead to many rivers climbing to similar, if not higher levels, than what was observed earlier this week. Also of note is that high tide will be running 1-2 ft higher on Sunday than what it was earlier this week and may exacerbate flooding for communities near the mouths of coastal rivers. – http://www.weather.gov/safety/flood

* AFFECTED AREAS: NORTH OREGON COAST … COAST RANGE OF NORTHWEST OREGON

Instructions:

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.