Station Name: DUWAMISH R AT E MARGINAL WAY BR AT DUWAMISH, WA
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 20 feet / 6 meters

Nearest Address:
11500 E Marginal Way S
Tukwila, WA 98168
King County

GPS Coordinates: 47.50050556, -122.2881417

Nearby Water Temperatures

Flood Warning issued December 19 at 7:30AM PST by NWS Seattle WA

Effective: Fri December 19, 2025, 7:30 AM
Expires: Fri December 19, 2025, 3:30 PM

...The Flood Warning continues for the following rivers in Washington... White River Near Mud Mtn. Dam Outflow 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. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...White River near Mud Mtn. Dam Outflow. * WHEN...Until further notice. * 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 7:00 AM PST Friday the flow was 9,080.0 cfs. - Flood flow is 9,000.0 cfs. - Recent Activity...The maximum river flow in the 24 hours ending at 7:00 AM PST Friday was 9,090.0 cfs. - Forecast...The river is expected to fall to 9,500.0 cfs early Monday morning. - http://www.weather.gov/safety/flood

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. Additional information is available at www.weather.gov. The next statement will be issued by this afternoon at 330 PM PST.

Flood Watch issued December 19 at 4:27AM PST until December 20 at 10:00AM PST by NWS Seattle WA

Effective: Fri December 19, 2025, 4:27 AM
Expires: Fri December 19, 2025, 5:30 PM

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of northwest and west central Washington, including the following counties, in northwest Washington, Grays Harbor. In west central Washington, King, Lewis, Pierce and Thurston. * 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... - Rainfall from yesterday as well as expected showers today will allow for continued reactions and possible rises on area rivers. Additionally, those rivers that are seeing waters recede may see the rate at which these waters fall slow down. This will allow for potential flooding to continue into the weekend. - http://www.weather.gov/safety/flood

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.

Flood Watch issued December 19 at 2:53PM PST until December 20 at 10:00AM PST by NWS Seattle WA

Effective: Fri December 19, 2025, 2:53 PM
Expires: Sat December 20, 2025, 4:00 AM

* 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

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.

Flood Warning issued December 19 at 1:57PM PST until December 20 at 10:27PM PST by NWS Seattle WA

Effective: Fri December 19, 2025, 1:57 PM
Expires: Fri December 19, 2025, 10:00 PM

...The Flood Warning is extended for the following rivers in Washington... Cedar River At Renton affecting King County. ...The Flood Warning continues for the following rivers in Washington... Green River Near Auburn affecting King County. * 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 12:45 PM PST Friday the flow was 9,680.0 cfs. - Flood flow is 9,000.0 cfs. - Recent Activity...The maximum river flow in the 24 hours ending at 12:45 PM PST Friday was 9,750.0 cfs. - Forecast...The river is expected to fall below flood stage late tomorrow morning and continue falling to 7,630.0 cfs late Monday morning. - http://www.weather.gov/safety/flood

Motorists should not attempt to drive around barricades or drive cars through flooded areas. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov. The next statement will be issued by this evening at 700 PM PST.

Flood Warning issued December 19 at 1:57PM PST until December 19 at 6:46PM PST by NWS Seattle WA

Effective: Fri December 19, 2025, 1:57 PM
Expires: Fri December 19, 2025, 7:00 PM

...The Flood Warning is extended for the following rivers in Washington... Cedar River At Renton affecting King County. ...The Flood Warning continues for the following rivers in Washington... Green River Near Auburn affecting King County. * WHAT...No flooding is currently forecast. * WHERE...Cedar River at Renton. * WHEN...Until this evening. * IMPACTS...At 11.3 feet, the Cedar River will locally overflow its banks, causing some areas of standing water, especially upstream of Maple Valley in the Dorre Don area. * ADDITIONAL DETAILS... - At 1:15 PM PST Friday the stage was 12.8 feet. - Flood stage is 13.0 feet. - Forecast...The river is expected to remain steady below flood stage at 13.0 feet. - http://www.weather.gov/safety/flood

Motorists should not attempt to drive around barricades or drive cars through flooded areas. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov. The next statement will be issued by this evening at 700 PM PST.

Flood Warning issued December 19 at 1:55PM PST by NWS Seattle WA

Effective: Fri December 19, 2025, 1:55 PM
Expires: Fri December 19, 2025, 10:00 PM

...The Flood Warning continues for the following rivers in Washington... White River Near Mud Mtn. Dam Outflow affecting Pierce and King Counties. 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. * WHAT...Minor flooding is occurring and moderate flooding is forecast. * WHERE...White River at R Street Bridge. * WHEN...Until further notice. * IMPACTS...At 10,000.0 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 12:45 PM PST Friday the flow was 8,690.0 cfs. - Flood flow is 7,500.0 cfs. - Recent Activity...The maximum river flow in the 24 hours ending at 12:45 PM PST Friday was 10,100.0 cfs. - Forecast...The river is expected to rise to a crest of 10,000.0 cfs late tonight. It will then rise to 10,300.0 cfs late Monday morning. Additional rises are possible thereafter. - http://www.weather.gov/safety/flood

Motorists should not attempt to drive around barricades or drive cars through flooded areas. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Additional information is available at www.weather.gov. The next statement will be issued by this evening at 1000 PM PST.

Flood Warning issued December 19 at 1:55PM PST by NWS Seattle WA

Effective: Fri December 19, 2025, 1:55 PM
Expires: Fri December 19, 2025, 10:00 PM

...The Flood Warning continues for the following rivers in Washington... White River Near Mud Mtn. Dam Outflow affecting Pierce and King Counties. 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. * WHAT...Minor flooding is forecast. * WHERE...White River near Mud Mtn. Dam Outflow. * WHEN...Until further notice. * 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 1:00 PM PST Friday the flow was 8,930.0 cfs. - Flood flow is 9,000.0 cfs. - Forecast...The river is expected to rise above flood stage this afternoon and continue rising to 9,500.0 cfs Sunday afternoon. Additional rises are possible thereafter. - http://www.weather.gov/safety/flood

Motorists should not attempt to drive around barricades or drive cars through flooded areas. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Additional information is available at www.weather.gov. The next statement will be issued by this evening at 1000 PM PST.

Flood Warning issued December 19 at 8:42PM PST until December 20 at 4:00AM PST by NWS Seattle WA

Effective: Fri December 19, 2025, 8:42 PM
Expires: Sat December 20, 2025, 4:00 AM

...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. * 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

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.

Flood Warning issued December 19 at 8:39PM PST until December 21 at 11:00AM PST by NWS Seattle WA

Effective: Fri December 19, 2025, 8:39 PM
Expires: Sat December 20, 2025, 4:45 AM

...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. * 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

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 k

Flood Warning issued December 19 at 8:36PM PST until December 20 at 10:14PM PST by NWS Seattle WA

Effective: Fri December 19, 2025, 8:36 PM
Expires: Sat December 20, 2025, 5:00 AM

...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. * 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

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.

Flood Warning issued December 19 at 9:05AM PST until December 26 at 4:26AM PST by NWS Seattle WA

Effective: Fri December 19, 2025, 9:05 AM
Expires: Fri December 19, 2025, 5:15 PM

...The Flood Warning is extended for the following rivers in Washington... Skokomish River At Potlatch affecting Mason County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Skokomish River at Potlatch. * WHEN...Until Friday, December 26. * IMPACTS...At 16.5 feet, the Skokomish River will cause widespread flooding of pasture lands, with water flowing quickly over West Bourgault Road and Skokomish Valley Road. * ADDITIONAL DETAILS... - At 8:30 AM PST Friday the stage was 17.3 feet. - Flood stage is 16.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:30 AM PST Friday was 17.5 feet. - Forecast...The river is expected to rise to a crest of 17.4 feet late this morning. It will remain in moderate flood stage for several days then fall below flood stage Thursday evening. - http://www.weather.gov/safety/flood

Motorists should not attempt to drive around barricades or drive cars through flooded areas. Caution is urged when walking near riverbanks. 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. Additional information is available at www.weather.gov. The next statement will be issued by this afternoon at 515 PM PST.

Flood Warning issued December 19 at 2:30PM PST until December 25 at 12:34AM PST by NWS Seattle WA

Effective: Fri December 19, 2025, 2:30 PM
Expires: Fri December 19, 2025, 10:30 PM

...The Flood Warning continues for the following rivers in Washington... Skokomish River At Potlatch affecting Mason County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Skokomish River at Potlatch. * WHEN...Until early Thursday morning. * IMPACTS...At 16.5 feet, the Skokomish River will cause widespread flooding of pasture lands, with water flowing quickly over West Bourgault Road and Skokomish Valley Road. * ADDITIONAL DETAILS... - At 1:30 PM PST Friday the stage was 17.2 feet. - Flood stage is 16.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 1:30 PM PST Friday was 17.5 feet. - Forecast...The river will fall to 16.6 feet late tomorrow evening. It will then rise to 17.4 feet late Sunday evening. It will fall to 17.0 feet late Monday morning. It will then rise to 17.4 feet late Monday evening. It will fall below flood stage late Wednesday evening. - http://www.weather.gov/safety/flood

Motorists should not attempt to drive around barricades or drive cars through flooded areas. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Caution is urged when walking near riverbanks. Be especially cautious at night when it is harder to recognize the dangers of flooding. Additional information is available at www.weather.gov. The next statement will be issued by this evening at 1030 PM PST.

Flood Warning issued December 19 at 9:51PM PST until December 25 at 12:34AM PST by NWS Seattle WA

Effective: Fri December 19, 2025, 9:51 PM
Expires: Sat December 20, 2025, 6:00 AM

...The Flood Warning continues for the following rivers in Washington... Skokomish River At Potlatch affecting Mason County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Skokomish River at Potlatch. * WHEN...Until early Thursday morning. * IMPACTS...At 16.5 feet, the Skokomish River will cause widespread flooding of pasture lands, with water flowing quickly over West Bourgault Road and Skokomish Valley Road. * ADDITIONAL DETAILS... - At 9:30 PM PST Friday the stage was 16.9 feet. - Flood stage is 16.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:30 PM PST Friday was 17.4 feet. - Forecast...The river will continue to fall tonight and through the day Saturday before rising again Sunday morning. Even with the lowering river levels, the Skokomish River will remain in flood stage throughout the weekend and into early next week. - http://www.weather.gov/safety/flood

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. Additional information is available at www.weather.gov. The next statement will be issued by Saturday morning at 600 AM PST.