FLOOD WATCH
NATIONAL WEATHER SERVICE PORTLAND OR
346 PM PDT MON MAY 23 2011
…THE NATIONAL WEATHER SERVICE IN PORTLAND HAS ISSUED A FLOOD WATCH
FOR THE FOLLOWING RIVERS IN OREGON AND WASHINGTON…
COLUMBIA RIVER AT VANCOUVER AFFECTING MULTNOMAH AND CLARK COUNTIES
.THE RIVER LEVEL IN THE COLUMBIA RIVER SYSTEM WILL RISE SLOWLY OVER
THE NEXT FEW DAYS AS INCREASED SNOWMELT WATER FROM EAST OF THE CASCADES
REACHES THE LOWER COLUMBIA RIVER SYSTEM. WET WEATHER ANTICIPATED MIDWEEK
MAY RESULT IN ADDITIONAL RIVER RISES LATE IN THE WEEK.
RIVER FORECASTS ARE BASED ON OBSERVED AND FORECAST RAINFALL AND
TEMPERATURES…AND INCLUDE CURRENT AND PLANNED RESERVOIR RELEASES.
FOR THE LATEST RIVER STAGES AND FORECASTS…VISIT OUR WEB PAGE AT
WEATHER.GOV/PORTLAND (LOWER CASE).
THE NEXT UPDATE FOR THESE LOCATIONS WILL BE ISSUED BY 3 PM TUESDAY.
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346 PM PDT MON MAY 23 2011
THE NATIONAL WEATHER SERVICE IN PORTLAND HAS ISSUED A
- FLOOD WATCH FOR
THE COLUMBIA R AT VANCOUVER.
-
FROM TUESDAY AFTERNOON UNTIL FURTHER NOTICE.
-
AT 3 PM MONDAY THE STAGE WAS 15.7 FEET.
-
FLOOD STAGE IS 16.0 FEET.
-
MINOR FLOODING IS POSSIBLE.
-
THE COLUMBIA RIVER IS FORECAST TO RISE ABOVE FLOOD STAGE EARLY TUESDAY
AFTERNOON. THE COLUMBIA WILL REMAIN NEAR OR ABOVE FLOOD STAGE TUESDAY
AND THEN RISE SLOWLY THROUGH THE END OF THE WEEK.
- ABOVE 16 FEET…EXPECT MINOR FLOODING OF SOME LOWLAND ACCESS ROADS NEAR
THE RIVER ON SAUVIE ISLAND…AND ON THE WALKWAY NEAR DOWNTOWN VANCOUVER.
THERE WILL BE SIGNIFICANT FLOODING ALONG THE BANKS OF THE COLUMBIA RIVER
THAT ARE COMMONLY USED FOR CAMPING SUCH AS ON GOVERMENT ISLAND.
- RIVERS CURRENTS WILL BE PARTICULARLY STRONG AND THE WATER TEMPERATURES
ARE VERY COLD. IT IS DANGEROUS TO TRY TO SWIM IN THESE WATERS.