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Update: Flood Watch Now Includes King County, Heavy Rain Expected Today, Wednesday

The Halloween forecast for Woodinville is 100 percent chance of rain, a high near 56 and southeast wind from 7-11 mph, according to the National Weather Service Seattle.

Update at 11:15 a.m. Tuesday from the National Weather Service, which has expanded the Flood Watch to include King and Pierce counties through Wednesday morning.

HEAVY RAIN OVER THE SOUTHWEST SLOPES OF CASCADE MOUNTAINS TODAY THROUGH WEDNESDAY COULD DRIVE THE MOST FLOOD-PRONE RIVERS OF THE NORTH CASCADES TO JUST ABOVE FLOOD STAGE. STORM TOTAL RAINFALL THROUGH WEDNESDAY WILL LIKELY RANGE FROM 2 TO 4 INCHES...WITH THE SNOW LEVEL AROUND 7000 TO 8000 FEET. ROUGHLY 1 TO 2 INCHES OF RAIN IS EXPECTED OVER THE LOWLANDS.

* THE MOST FLOOD-PRONE RIVERS IN THE WATCH AREA INCLUDE THE PUYALLUP RIVER NEAR ORTING AND THE WHITE RIVER BELOW MUD DAM. IF ANY OF THESE RIVERS DO FLOOD...IT WILL PROBABLY BE RELATIVELY MINOR. THE RAINFALL IN THE LOWLANDS WILL ALSO LIKELY CAUSE STREET FLOODING IN POORLY DRAINED AREAS OR WHERE STORM DRAINS ARE COVERED BY LEAVES. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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.

The Halloween forecast for Woodinville still includes a 100 percent chance of rain, a high near 56 and southeast wind from 7-11 mph, according to the National Weather Service Seattle.

--Original post Oct. 29

Heavy Rain Tuesday and Wednesday could produce flooding on some area rivers later this week, the National Weather Service Seattle said Monday morning.

According to the National Weather Service:

A WET WEATHER SYSTEM WILL MOVE THROUGH WESTERN WASHINGTON TUESDAY AND WEDNESDAY. 24 TO 36 HOUR RAINFALL AMOUNTS OF 2 TO 4 INCHES SHOULD BE COMMON OVER THE MOUNTAINS WITH LOCAL AMOUNTS UP TO 6 INCHES POSSIBLE.

THE HEAVIEST AMOUNTS ARE EXPECTED TO FALL OVER THE SOUTHERN FACING SLOPES OF THE OLYMPICS BUT MOST MOUNTAIN AREAS WILL LIKELY SEE SIGNIFICANT RAINFALL BY WEDNESDAY AFTERNOON.

SOME OF THE RIVERS FLOWING OFF THE OLYMPICS OR CASCADES COULD REACH FLOOD STAGE WEDNESDAY IF THE EXPECTED HEAVY RAINS MATERIALIZE. URBAN AREAS COULD ALSO EXPERIENCE MINOR FLOODING TUESDAY AND WEDNESDAY DUE TO HEAVY RAIN FLOWING INTO STORM DRAINS CLOGGED WITH AUTUMN LEAVES.

Currently, the Halloween forecast for Woodinville is 100 percent chance of rain with a high near 59 and a southeast wind from 7-9 mph.

The King County Flood Warning Center opened at 7:30 a.m. on Monday, Oct. 29 after steady rainfall brought the Snoqualmie River up to Phase II flood alert level. Flood Warning Center staff will monitor stream gages and weather reports, and will provide updated information on river conditions as necessary. Real-time river level information is available online at http://www.kingcounty.gov/flood.

Updated information on flooding will also be posted on the King County website at www.kingcounty.gov, and via RPIN, the area's regional website at http://www.rpin.org. A recorded flood-information hotline is also updated each hour for citizens wanting information on flood conditions. The number is 206-296-8200 or 1-800-945-9263.

Citizens who need help interpreting flood information should call 206-296-4535 or 1-800-768-7932. Problems on County maintained roads can be reported by calling 206-296-8100 or 1-800-KC-ROADS. 

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