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Washington, West Slopes Northern Cascades and Passes

Areal Flood Warning

Statement as of 12:45 PM PDT on April 17, 2014

Expires 7:45 PM EDT on April 24, 2014


The National Weather Service in Seattle has extended the

* Flood Warning for the North Fork stillaguamish river east of the
State Route 530 slide in north central Snohomish County...

* until 445 PM PDT April 24.

* Flooding continues on the North Fork of the stillaguamish river
upstream of the sr 530 slide due to debris from the State Route
530 slide partially blocking the river and the resulting pooling
of water behind the debris dam. We will be updating the Flood
Warning on a day to day basis.

* The Oso area has received 1.84 inches of rain in the last 24
hours. The rainfall forecast is for another 1.0 inches of rain in
the Oso area and up to 1.5 inches in the mountains through Friday
morning. The river will continue rising today... cresting tonight
before midnight with the largest flows since the slide occurred.
The peak flow forecast for the North Fork river near Arlington
gage is near 9.3 ft. Or 13000 cfs and near 7900 cfs for the
North Fork stillaguamish river at Oso.

* At 1200 PM PDT... the pool elevation was 285.8 ft.

* The pool elevation is forecast to rise to 287.7 ft. By Thursday
night before midnight. The pool elevation will start dropping
significantly Friday. There is a great amount of uncertainty in
the forecast pool elevation crest due in part to limited knowledge
of how much water the new stream channel through the slide debris
will be able to convey.


Precautionary/preparedness actions...

A Flood Warning means flooding is occurring or imminent. Most flood
related deaths occur in automobiles. Do not attempt to cross water
covered bridges... dips... or low water crossings. Never try to cross a
flowing stream... even a small one... on foot. To escape rising water
move up to higher ground.


Lat... Lon 4825 12181 4829 12185 4829 12177 4829 12166
      4824 12165 4826 12174


Bower

Www.Weather.Gov/Seattle



Record Report

Statement as of 6:27 PM PDT on April 17, 2014


... Record daily maximum rainfall set at Quillayute WA Airport...

a record rainfall of 1.71 inches was set at Quillayute WA Airport
today. This breaks the old record of 1.23 set in 1992.

&&

... Record daily maximum rainfall set at Hoquiam WA Airport...

a record rainfall of 0.74 inches was set at Hoquiam WA Airport
today. This breaks the old record of 0.73 set in 1958.

&&

... Record daily maximum rainfall set at Seattle WA WFO...

a record rainfall of 0.33 inches was set at Seattle WA WFO today.
This breaks the old record of 0.29 set in 1995.


Weather Severe Map
Alabama - Flood Warning , Coastal Hazard Statement, Flash Flood Watch , Flash Flood Watch , Areal Flood Watch , Record Report
Alaska - Record Report
Arkansas - Flood Warning , Flood Advisory , Record Report
California - Record Report
Colorado - Record Report
Connecticut - Flood Warning , Frost Advisory , Record Report
Florida - Flood Warning , High Surf Advisory, Coastal Hazard Statement, Areal Flood Watch , Coastal Hazard Statement, Flash Flood Watch , Flash Flood Watch , Areal Flood Watch , Areal Flood Watch, Coastal Hazard Statement , Record Report
Georgia - Flood Warning , Flash Flood Watch, Coastal Hazard Statement , Flash Flood Watch , Areal Flood Watch , Areal Flood Watch, Coastal Hazard Statement
Idaho - Wind Advisory
Illinois - Flood Warning
Indiana - Flood Warning
Iowa - Flood Warning
Kansas - Frost Advisory
Louisiana - Flood Warning , Record Report
Maine - Flood Warning, Areal Flood Warning , Areal Flood Warning , Flood Warning , Areal Flood Watch , Hydrologic Statement , Record Report
Maryland - Frost Advisory
Massachusetts - Flood Warning
Michigan - Flood Warning, Areal Flood Warning , Flood Warning , Flood Advisory , Record Report
Minnesota - Flood Warning , Record Report
Mississippi - Flood Warning , Record Report
Missouri - Flood Advisory
Montana - Lake Wind Advisory , High Wind Watch , High Wind Warning , Record Report
New Hampshire - Flood Warning , Record Report
New Jersey - Frost Advisory , Record Report
New York - Flood Warning , Frost Advisory , Record Report
North Carolina - Frost Advisory , Record Report
North Dakota - Flood Warning
Oregon - High Surf Advisory
Pennsylvania - Frost Advisory , Record Report
South Carolina - Flood Warning , Flash Flood Watch, Coastal Hazard Statement , Flash Flood Watch
Tennessee - Flood Advisory , Record Report
Texas - Flood Warning , Record Report
Vermont - Flood Warning , Record Report
Virginia - Frost Advisory , Record Report
Washington - Areal Flood Warning , Special Statement , Record Report
Wisconsin - Flood Warning , Record Report