Weather Alerts for Seattle, Washington - The Weather Channel | Weather.com
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Weather Alerts- Seattle, Washington

High Severity Alert

River Flood Warning

Until Sat 10:14 pm PST

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Action Recommended

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Issued By

Seattle/Tacoma - WA, US, National Weather Service

Affected Area

Green River near Auburn

Description

...FLOOD WARNING FOR A DAM FLOODGATE RELEASE NOW IN EFFECT UNTIL LATE TOMORROW EVENING... WHAT...Minor flooding is occurring and minor flooding is forecast. WHERE...Green River near Auburn. WHEN...Until late tomorrow evening. IMPACTS...At 9,000.0 cfs, the Green River will flood low areas of the middle Green River valley with water over SE Green Valley Rd. Some backwater inundation is possible in lower Mill Creek basin between Auburn and Kent. A flow of 9000 cfs feet on the Green River corresponds to a phase 3 flood in the King County flood system. ADDITIONAL DETAILS... - At 7:45 PM PST Friday the flow was 9,410.0 cfs. - Flood flow is 9,000.0 cfs. - Recent Activity...The maximum river flow in the 24 hours ending at 7:45 PM PST Friday was 9,730.0 cfs. - Forecast...The river is expected to fall below flood stage late tomorrow morning and continue falling through the weekend. - Flood History...This crest compares to a previous crest of 9,310.0 cfs on 12/19/1947. - http://www.weather.gov/safety/flood

More Information

...The Flood Warning continues for the following rivers in Washington... Green River Near Auburn affecting King County. .The river forecast is based on current dam operations. Dam operations to maintain a safe flood pool for area dams could maintain elevated flow levels or they could raise or lower levels downstream of the dams. Dam regulation can change rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Additional information is available at www.weather.gov. The next statement will be issued by late tonight at 500 AM PST.
High Severity Alert

River Flood Warning

Until Sun 11:00 am PST

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Action Recommended

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Issued By

Seattle/Tacoma - WA, US, National Weather Service

Affected Area

White River at R Street Bridge

Description

...FLOOD WARNING FOR A DAM FLOODGATE RELEASE NOW IN EFFECT UNTIL LATE SUNDAY MORNING... WHAT...Minor flooding is occurring and minor flooding is forecast. WHERE...White River at R Street Bridge. WHEN...Until late Sunday morning. IMPACTS...At 10,000 cfs, River flooding may occur upstream of the A Street Bridge in the City of Auburn. River levels will likely be up against the temporary flood protection barriers, with flooding likely at Government Canal and Butte Avenue in the City of Pacific and downstream of the Stewart Street Bridge in the City of Sumner. ADDITIONAL DETAILS... - At 10:45 PM PST Tuesday the flow was 7,350 cfs. - Flood flow is 7,500 cfs. - Forecast...The river will continue to fall, going below flood stage by Saturday morning. - http://www.weather.gov/safety/flood

More Information

...Observed flooding changed to Minor severity and increased in duration for the following rivers in Washington... White River Near Mud Mtn. Dam Outflow affecting Pierce and King Counties. ...The Flood Warning continues for the following rivers in Washington... White River At R Street Bridge affecting Pierce and King Counties. .The river forecast is based on current dam operations. Dam operations to maintain a safe flood pool for area dams could maintain elevated flow levels or they could raise or lower levels downstream of the dams. Dam regulation can change rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... Motorists should not attempt to drive around barricades or drive cars through flooded areas. Be especially cautious at night when it is harder to recognize the dangers of flooding. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Even 6 inches of fast-moving flood water can knoc2025k you off your feet and a depth of 2 feet will float your car. Never try to walk, swim, or drive through such swift water. If you come upon flood waters, stop, turn around and go another way. Additional information is available at www.weather.gov. The next statement will be issued by this evening at 945 PM PST.
High Severity Alert

River Flood Warning

Until Sat 4:00 am PST

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Action Recommended

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Issued By

Seattle/Tacoma - WA, US, National Weather Service

Affected Area

White River near Mud Mtn. Dam Outflow

Description

...FLOOD WARNING FOR A DAM FLOODGATE RELEASE NOW IN EFFECT UNTIL LATE TONIGHT... WHAT...No flooding is currently forecast. WHERE...White River near Mud Mtn. Dam Outflow. WHEN...Until late tonight. IMPACTS...At 8,000.0 cfs, the White River will spill over its banks below Mud Mountain Dam producing high water that will encroach on roads and residences, particularly in the Red Creek area. 8000 cfs on the White River is within phase 3 flood in the King County flood system. ADDITIONAL DETAILS... - At 8:00 PM PST Friday the flow was 8,940.0 cfs. - Flood flow is 9,000.0 cfs. - Forecast...The river is expected to fall below flood stage late tonight. - http://www.weather.gov/safety/flood

More Information

...The Flood Warning is extended for the following rivers in Washington... White River Near Mud Mtn. Dam Outflow affecting Pierce and King Counties. .High mountain snow melt and increased reservoir releases will cause the river flows to become high. Expect minor flooding downstream from the dam. PRECAUTIONARY/PREPAREDNESS ACTIONS... Be especially cautious at night when it is harder to recognize the dangers of flooding. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Additional information is available at www.weather.gov. The next statement will be issued by late tonight at 400 AM PST.
Moderate Severity Alert

Special Weather Statement

Until Sat 5:00 pm PST

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Action Recommended

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Issued By

Seattle/Tacoma - WA, US, National Weather Service

Affected Area

City of Seattle

Description

...HEAVY RAINFALL THIS WEEK HAS LED TO AN INCREASED THREAT OF LANDSLIDES IN WESTERN WASHINGTON... Significant rainfall over the past week has increased soil moisture to high levels across western Washington. This significant rain will continue to put extra pressure on soil instability, leading to an increased threat of landslides and debris flows, especially from recent burned areas, with additional rainfall acting as a trigger. Numerous landslides have already occurred in Whatcom, Skagit, King Counties and others. More landslides continue to be possible. Areas most susceptible to landslides debris flows under these conditions are steep coastal bluffs, other steep hillsides or road cuts, and recent burned areas. A diminishing threat of landslides and debris flows will continue for several days after the rain ends. For more information about current conditions, visit www.weather.gov/seattle, select Hydrology, and then scroll down for the links to the landslide information pages. For more information on landslides, visit the website for the Washington State Department of Natural Resources landslide geologic hazards at: http://bit.ly/2mtA3wn
Moderate Severity Alert

Flood Watch

Until Sat 10:00 am PST

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Action Recommended

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Issued By

Seattle/Tacoma - WA, US, National Weather Service

Affected Area

A portion of west central Washington, including the following counties, King, Lewis and Pierce

Description

...FLOOD WATCH REMAINS IN EFFECT THROUGH SATURDAY MORNING... WHAT...Flooding caused by excessive rainfall continues to be possible as a result of regulated reservoir and dam operations. WHERE...A portion of west central Washington, including the following counties, King, Lewis and Pierce. WHEN...Through Saturday morning. IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Storm drains and ditches may become clogged with debris. Area creeks and streams are running high and could flood with more heavy rain. ADDITIONAL DETAILS... - Regulated rivers may continue to remain elevated or increase as reservoirs and dam operators manage the water levels. River flows downstream of dams may rise or lower rapidly as a result. Dam regulations can change rapidly to account for incoming water. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
Low Severity Alert

Small Craft Advisory

Until Sat 4:00 pm PST

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Action Recommended

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Issued By

Seattle/Tacoma - WA, US, National Weather Service

Affected Area

Puget Sound and Hood Canal

Description

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST SATURDAY... WHAT...South winds 15 to 25 kt. WHERE...Puget Sound and Hood Canal. WHEN...Until 4 PM PST Saturday. IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Small Craft Advisory means that wind speeds of 21 to 33 knots and/or seas 10 feet or higher are expected to produce hazardous wave conditions to small craft. Inexperienced mariners, especially those operating smaller vessels should avoid navigating in these conditions.
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