National Weather Service Advanced Hydrologic Prediction Service

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Weather Forecast Office Seattle, WA

Northwest River Forecast Center

Hydrograph

River at a Glance

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About this graph

Tabular Data (UTC)

Tabular Data (PDT)

Datum: Not Available

Metadata

NOTE: River forecasts for this location take into account past and future precipitation. The stages/flows that will occur may be different if future rainfall is different than forecast.

NOTE: Forecast river flows take into account forecasts of dam operations and are subject to change.

Reliability of the Forecast: Based on current and forecast river, weather and reservoir conditions

NOTE: Forecasts for the Green River (WA) near Auburn are issued routinely year-round.

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Upstream Gauge

Downstream Gauge

Flood Categories (in KCFS)

Major Flood Flow:	14
Moderate Flood Flow:	12
Flood Flow:	9
Action Flow:	6
Low Stage (in feet):	-9999

Historic Crests
(1) 28,100 cfs on 11/23/1959
(2) 22,000 cfs on 12/11/1946
(3) 20,300 cfs on 12/12/1955
(4) 18,400 cfs on 02/10/1951
(5) 18,300 cfs on 12/10/1953
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 9,710 cfs on 03/01/2022
(2) 11,700 cfs on 02/07/2020 (P)
(3) 10,000 cfs on 02/06/2020 (P)
(4) 8,020 cfs on 02/02/2020 (P)
(5) 8,310 cfs on 02/05/2018
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 81 cfs on 10/31/1987

For more information on your flood risk go to www.floodsmart.gov.

Show FEMA's National Flood Hazard Layers

Zoom Level:16

	Gauge Location	Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.

Flood Impacts & Photos

If you notice any errors in the below information, please contact our Webmaster
14000	the Green River will experience major flooding inundating much of the flood plain from the middle Green River valley downstream to Tukwilla. Some homes...businesses and neighborhoods will see significant flooding with some evacuations likely needed. Levees may be overtopped and erosion may damage levees. A flow of 12000 cfs or above on the Green River corresponds roughly to a phase 4 flood in the King County flood system.
12000	the Green River will inundate low areas from the middle Green River valley downstream to Auburn...with water over several roads including SE Green Valley Rd and West Valley Rd. Levees from Auburn down through Tukwilla may exhibit seeapage and may weaken due to saturation. A flow of 12000 cfs on the Green River corresponds to a phase 4 flood in the King County flood system.
10000	the Green River will flood low areas of the middle Green River valley with water over SE Green Valley Rd. Some flooding is possible at a few low spots along the banks of the Green River in Auburn, including near Issac Evans Park in lower Mill Creek basin between Auburn and Kent due to backwater. A flow of 9000 cfs feet on the Green River corresponds to a phase 3 flood in the King County flood system.
9000	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.
7000	the Green River will spill over its banks into low areas in Green Valley and in lower Mill Creek basin between Auburn and Kent. A flow of 7000 cfs on the Green River corresponds to a phase 2 flood in the King County flood system.

About This Location

Latitude: 47.312500° N, Longitude: 122.202778° W, Horizontal Datum: NAD83/WGS84

River Stage Reference Frame	Gauge Height	Flood Stage	Uses
NWS flow	Not Available	Not Available	Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum	Elevation (gauge height = 0)	Elevation (gauge height = flood stage)	Elevation information source
NAVD88	0.0 ft	Not Available	Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29	0.0 ft	Not Available	Older USGS topographic maps, NGVD29 benchmarks
MSL	Not Available	Not Available	Older USGS topographic maps, MSL benchmarks
Other	Not Available	64.0 ft	Old Flood stage used.

Current/Historical Observations:

U.S. Geological Survey (USGS) Data and Site Info for Auburn

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Hydrologic Resources

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Collaborative Agencies

The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.

NWS Information

National Weather Service
Seattle Weather Forecast Office
7600 Sandpoint Way NE
Seattle, WA 98115-6349
(206) 526-6087
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Page last modified: 2-Nov-2020 7:27 PM

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