Sunday, May 29, 2011

Columbia River Flood Warning - Updated May 29

Resent Photo from Steamboat Landing Dock in Washougal.

The National Weather Service in Portland has issued an updated Flood Warning for the Columbia River at Vancouver:

THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN OREGON AND WASHINGTON...COLUMBIA RIVER AT VANCOUVER AFFECTING MULTNOMAH AND CLARK COUNTIES

THE COLUMBIA RIVER WILL FLUCTUATE NEAR FLOOD STAGE FOR THE NEXT SEVERAL DAYS AS INCREASED SNOW MELT WATER FROM EAST OF THE CASCADES REACHES THE LOWER COLUMBIA AND OPERATIONS OF DAMS ON THE RIVER CHANGE.

RIVER FORECASTS ARE BASED ON OBSERVED AND FORECAST RAINFALL AND TEMPERATURES...AND INCLUDE CURRENT AND PLANNED RESERVOIR RELEASES.

  • Flood stage is 16 feet
  • Minor flooding is forecast: This river will fluctuate near flood stage for the next several days, pending tides and releases from Bonneville dam. The river is forecast to stay below flood stage through Friday with the general trend of the fluctuations slowly getting higher to above flood stage. The next time the river is expected to rise above flood stage is overnight Friday. Fluctuations of one half foot below to one foot above flood stage are possible.
  • Impact: Near or above 16 feet, expect flooding of some lowland access roads and some parking areas near the river on Sauvie Island (Oregon). Flooding of the Renaissance trail along the river just east of the I-5 bridge near downtown Vancouver. Water in access areas to floating homes near Fairview (Oregon). Flooding along the lower Salmon Creek trail. There will be significant flooding of the banks of the Columbia river that are commonly used for camping and recreation, such as Cottonwood Beach near Washougal and on Government Island.
  • River currents are particularly strong and the water temperatures are very cold.

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