Flood Potential Outlook
Issued by NWS Portland, OR

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HYDROLOGIC OUTLOOK
NATIONAL WEATHER SERVICE PORTLAND OR
214 PM PST WED DEC 17 2014

...POTENTIAL FOR FLOODING SATURDAY NIGHT THROUGH MONDAY FOR
NORTHWEST OREGON AND SOUTHWEST WASHINGTON RIVERS...

A STORM SYSTEM DEVELOPING OVER THE PACIFIC IS EXPECTED TO BRING
HEAVY RAIN TO THE PACIFIC NORTHWEST SATURDAY EVENING THROUGH
SUNDAY. AS OF NOW...IT LOOKS LIKE THE HEAVIEST RAIN WILL BE IN
THE NORTH OREGON COAST RANGE AND THE NORTH OREGON AND SOUTH
WASHINGTON CASCADES...BUT THIS FORECAST IS UNCERTAIN.
METEOROLOGISTS WILL BE KEEPING A CLOSE EYE ON THE DEVELOPMENT OF
THIS STORM. THIS IS A CLASSIC ATMOSPHERIC RIVER EVENT THAT COULD
PRODUCE SOME AREAS OF VERY HEAVY RAIN.

RAINFALL AMOUNTS ARE CURRENTLY PROJECTED AS 5 TO 8 INCHES FOR THE
COAST...COAST RANGE AND CASCADES...WITH 2 TO 5 INCHES FOR VALLEY
LOCATIONS. SNOW LEVELS WILL BE HIGH...WELL ABOVE PASS LEVEL...FOR
MOST OF THIS EVENT. IF WE GET THESE AMOUNTS OF RAIN OR MORE...
THERE WILL LIKELY BE FLOODING ON AREA RIVERS AND CREEKS SATURDAY
NIGHT THROUGH MONDAY.

STAY UP TO DATE WITH THE LATEST NWS FORECASTS AT
WEATHER.GOV/PORTLAND OR MOBILE.WEATHER.GOV.

$$



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