Flood Advisory

Flood Advisory
National Weather Service Portland OR
545 PM PST Fri Dec 20 2019

The National Weather Service in Portland has issued a

* Urban and Small Stream Flood Advisory for…
Clatsop County in northwestern Oregon…
Tillamook County in northwestern Oregon…
Wahkiakum County in southwestern Washington…

* Until 130 AM PST Saturday.

* At 535 PM PST, Doppler radar and automated rain gauges indicated
heavy rain which will cause urban and small stream flooding in the
advisory area. Around 3 to 6 inches of rain has generally fallen
over the advisory area, with portions in the higher terrain
getting up to 12 inches.

* Some locations that will experience flooding include…
Astoria, Seaside, Warrenton, Cannon Beach, Garibaldi, Manzanita,
Cathlamet, Jewell, Grays River, Pacific City, Tillamook, Rockaway
Beach, Lees Camp, Hammond Town, Skamokawa, Neskowin, Cloverdale,
Trask, Knappa and Rosburg.

Additional rainfall of one to three inches is expected over the area
through 1 AM tonight. This additional rain will result in minor
flooding of some creeks and small streams in addition to urban and
low lying areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

Turn around, don’t drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses as
well as other drainage areas and low lying spots.

A Flood Advisory means river or stream flows are elevated, or ponding
of water in urban or other areas is occurring or is imminent.

 

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