FLOOD WARNING FOR TOLT RIVER IN CARNATION And Stillaguamish River at Arlington March 16, 2014
Rain coming down on U.S. Highway 2 in east Snohomish County. Photo: Sky Valley Chronicle. CLICK TO ENLARGE
(SEATTLE, WA) -- The National Weather Service in Seattle has issued a flood warning for the Tolt river near Carnation from this morning to Monday morning.
At 4:15 am Sunday the river's flow was 2340 cfs (cubic feet per second) and flood flow is 5000 cfs. Minor flooding is forecast as the river is expected to rise above flood flow around 11:00 am Sunday and crest near 5236 cfs around 5:00 pm Sunday.
The river will fall below flood flow Sunday night. Impact: at 5000 cfs the Tolt River will flood River Rd NE and many driveways. Some homes in the san souci area could be inaccessible due to deep and quick flood waters. This river level on the Tolt corresponds to a phase 3 flood in the King County flood system.
The National Weather Service has also issued a flood warning for the Stillaguamish River at Arlington from this morning to Monday afternoon. At 4:24 am Sunday the river's stage was at 9.4 feet and flood stage is 14.0 feet. Minor flooding is forecast.
The river is expected to rise above flood stage around 8:00 am Sunday and crest near 16.7 feet around 500 pm Sunday. The river will fall below flood stage early Monday morning.
Impact: at 16.0 feet the Stillaguamish river will cause minor flooding mainly in the Silvana area including over Pioneer Highway and along Norman Rd. A stage of 16 feet on the Stillaguamish river corresponds roughly to phase 2 in the Snohomish County flood program.
And a flood watch remains in effect Sunday morning through Monday afternoon for rivers and streams in portions of western Washington including the following counties: Snohomish, Skagit , Grays Harbor, Clallam, Jefferson, Whatcom, King and Mason.
Periods of moderate to heavy rain will fall over the Olympics and west slopes of the North Washington Cascades today and over the Cascades this evening.
Another 1 to 1.8 inches of rain can be expected through this evening. So far 2 to 2.5 inches of rain has fallen over the Olympics and north Cascades over the past 24 hours ending at 2:00 am this morning.
Some rivers are already experiencing sharp rises. Minor flooding is still possible on some rivers.
A Flood Watch means conditions are favorable for flooding but flooding is not imminent or occurring. Monitor the latest forecasts from the National Weather Service and be ready to act quickly if flooding is observed or a warning is issued.