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: NAVD88

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.

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

NOTE: Forecasts for the Chehalis River near Doty are issued routinely year-round.

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Upstream Gauge

Downstream Gauge

Flood Categories (in feet)

Major Flood Stage:	324.5
Moderate Flood Stage:	323.5
Flood Stage:	318
Action Stage:	315.5
Low Flow (in CFS):	83

Historic Crests
(1) 336.26 ft on 12/03/2007
(2) 321.11 ft on 01/06/2022 (P)
(3) 319.66 ft on 12/20/2019 (P)
(4) 318.55 ft on 01/13/2021 (P)
(5) 318.46 ft on 12/05/2023 (P)
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 318.46 ft on 12/05/2023 (P)
(2) 318.11 ft on 02/28/2022 (P)
(3) 321.11 ft on 01/06/2022 (P)
(4) 318.55 ft on 01/13/2021 (P)
(5) 318.28 ft on 01/03/2021 (P)
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

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
324.5	deep and hazardous flood waters of the upper Chehalis and South Fork Chehalis rivers will inundate most roads and a majority of agricultural and residential areas. Many bridges will be closed and possibly damaged. This stage roughly corresponds to Phase 4 in the Lewis County flood system. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the upper Chehalis River Basin.
323.5	deep and hazardous flood waters of the upper Chehalis and South Fork Chehalis Rivers will inundate many residential and commercial areas and roadways including Hwy. 6...potentially closing schools. Other impacted roadways and surrounding areas include Curtis Hill...Lake Creek...Moon Hill...Wildwood...Beaver Creek...and King Roads in the Boisfort Valley and Labri Rd. and Front St. below Doty. This stage roughly corresponds to Phase 3 in the Lewis County flood system.
318	flood waters of the upper Chehalis and South Fork Chehalis will inundate many roads and some residential and commercial areas. Impacted roadways and surrounding areas include Curtis Hill...Lake Creek...Moon Hill...Wildwood Roads in the Boisfort Valley and Labri Rd. and Front St. below Doty. This stage roughly corresponds to just below Phase 2 in the Lewis County flood system.
316.5	flood waters of the upper Chehalis and South Fork Chehalis will spill over its banks...inundating low flood prone areas and possibly some roads below Doty and in the Boisfort Valley. This stage roughly corresponds to Phase 1 in the Lewis County flood system.

About This Location

Latitude: 46.617324° N, Longitude: 123.277644° W, Horizontal Datum: NAD27

River Stage Reference Frame	Gauge Height	Flood Stage	Uses
NWS stage	0 ft	318 ft	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	318 ft	Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29	301.1 ft	319.1. ft	Older USGS topographic maps, NGVD29 benchmarks
MSL	Not Available	Not Available	Older USGS topographic maps, MSL benchmarks
Other	Not Available	Not Available

Current/Historical Observations:

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

Additional Information

Chehalis River Basin Flood Authority's Early Warning System:http://lewiscountywa.gov/chehalis-river-basin-flood-authority

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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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