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Over 200 USGS real-time streamgages used to support NWS river forecasts and warnings are at risk of being discontinued. Click here for more information from the USGS...
Weather Forecast Office Seattle, WA Northwest River Forecast Center
Hydrograph River at a Glance Download Weekly Chance of
Exceeding Levels		 Chance of Exceeding Levels
During Entire Period
Chehalis River at Centralia Stage (ft)Flow (kcfs)Observed: 52.89 ft at 12:00PM May 19, 2013Observed: 52.89 ft at 12:30PM May 19, 2013Observed: 52.89 ft at 1:00PM May 19, 2013Observed: 52.88 ft at 1:30PM May 19, 2013Observed: 52.87 ft at 2:00PM May 19, 2013Observed: 52.87 ft at 2:30PM May 19, 2013Observed: 52.87 ft at 3:00PM May 19, 2013Observed: 52.87 ft at 3:30PM May 19, 2013Observed: 52.87 ft at 4:00PM May 19, 2013Observed: 52.87 ft at 4:30PM May 19, 2013Observed: 52.86 ft at 5:00PM May 19, 2013Observed: 52.86 ft at 5:30PM May 19, 2013Observed: 52.86 ft at 6:00PM May 19, 2013Observed: 52.86 ft at 6:30PM May 19, 2013Observed: 52.86 ft at 7:00PM May 19, 2013Observed: 52.86 ft at 7:30PM May 19, 2013Observed: 52.85 ft at 8:00PM May 19, 2013Observed: 52.85 ft at 8:30PM May 19, 2013Observed: 52.85 ft at 9:00PM May 19, 2013Observed: 52.85 ft at 9:30PM May 19, 2013Observed: 52.85 ft at 10:00PM May 19, 2013Observed: 52.85 ft at 10:30PM May 19, 2013Observed: 52.85 ft at 11:00PM May 19, 2013Observed: 52.85 ft at 11:30PM May 19, 2013Observed: 52.85 ft at 12:00AM May 20, 2013Observed: 52.85 ft at 12:30AM May 20, 2013Observed: 52.85 ft at 1:00AM May 20, 2013Observed: 52.85 ft at 1:30AM May 20, 2013Observed: 52.84 ft at 2:00AM May 20, 2013Observed: 52.84 ft at 2:30AM May 20, 2013Observed: 52.84 ft at 3:00AM May 20, 2013Observed: 52.83 ft at 3:30AM May 20, 2013Observed: 52.83 ft at 4:00AM May 20, 2013Observed: 52.83 ft at 4:30AM May 20, 2013Observed: 52.83 ft at 5:00AM May 20, 2013Observed: 52.83 ft at 5:30AM May 20, 2013Observed: 52.83 ft at 6:00AM May 20, 2013Observed: 52.85 ft at 6:30AM May 20, 2013Observed: 52.85 ft at 7:00AM May 20, 2013Observed: 52.86 ft at 7:30AM May 20, 2013Observed: 52.87 ft at 8:00AM May 20, 2013Observed: 52.87 ft at 8:30AM May 20, 2013Observed: 52.89 ft at 9:00AM May 20, 2013Observed: 52.89 ft at 9:30AM May 20, 2013Observed: 52.89 ft at 10:00AM May 20, 2013Observed: 52.89 ft at 10:30AM May 20, 2013Observed: 52.89 ft at 11:00AM May 20, 2013Observed: 52.89 ft at 11:30AM May 20, 2013Observed: 52.9 ft at 12:00PM May 20, 2013Observed: 52.91 ft at 12:30PM May 20, 2013Observed: 52.91 ft at 1:00PM May 20, 2013Observed: 52.91 ft at 1:30PM May 20, 2013Observed: 52.91 ft at 2:00PM May 20, 2013Observed: 52.91 ft at 2:30PM May 20, 2013Observed: 52.91 ft at 3:00PM May 20, 2013Observed: 52.91 ft at 3:30PM May 20, 2013Observed: 52.91 ft at 4:00PM May 20, 2013Observed: 52.91 ft at 4:30PM May 20, 2013Observed: 52.89 ft at 5:00PM May 20, 2013Observed: 52.89 ft at 5:30PM May 20, 2013Observed: 52.89 ft at 6:00PM May 20, 2013Observed: 52.89 ft at 6:30PM May 20, 2013Observed: 52.88 ft at 7:00PM May 20, 2013Observed: 52.87 ft at 7:30PM May 20, 2013Observed: 52.87 ft at 8:00PM May 20, 2013Observed: 52.86 ft at 9:30PM May 20, 2013Observed: 52.85 ft at 10:00PM May 20, 2013Observed: 52.85 ft at 10:30PM May 20, 2013Observed: 52.84 ft at 11:00PM May 20, 2013Observed: 52.84 ft at 11:30PM May 20, 2013Observed: 52.84 ft at 12:00AM May 21, 2013Observed: 52.83 ft at 12:30AM May 21, 2013Observed: 52.83 ft at 1:00AM May 21, 2013Observed: 52.83 ft at 1:30AM May 21, 2013Observed: 52.83 ft at 2:00AM May 21, 2013Observed: 52.83 ft at 2:30AM May 21, 2013Observed: 52.83 ft at 3:00AM May 21, 2013Observed: 52.84 ft at 3:30AM May 21, 2013Observed: 52.84 ft at 4:00AM May 21, 2013Observed: 52.85 ft at 4:30AM May 21, 2013Observed: 52.85 ft at 5:00AM May 21, 2013Observed: 52.85 ft at 5:30AM May 21, 2013Observed: 52.86 ft at 6:00AM May 21, 2013Observed: 52.86 ft at 6:30AM May 21, 2013Observed: 52.86 ft at 7:00AM May 21, 2013Observed: 52.86 ft at 7:30AM May 21, 2013Observed: 52.86 ft at 8:00AM May 21, 2013Observed: 52.86 ft at 8:30AM May 21, 2013Observed: 52.87 ft at 9:00AM May 21, 2013Observed: 52.87 ft at 9:30AM May 21, 2013Observed: 52.87 ft at 10:00AM May 21, 2013Observed: 52.87 ft at 10:30AM May 21, 2013Observed: 52.87 ft at 11:00AM May 21, 2013Observed: 52.87 ft at 11:30AM May 21, 2013Observed: 52.88 ft at 12:00PM May 21, 2013Observed: 52.89 ft at 12:30PM May 21, 2013Observed: 52.89 ft at 1:00PM May 21, 2013Observed: 52.89 ft at 1:30PM May 21, 2013Observed: 52.9 ft at 2:00PM May 21, 2013Observed: 52.91 ft at 2:30PM May 21, 2013Observed: 52.91 ft at 3:00PM May 21, 2013Observed: 52.91 ft at 3:30PM May 21, 2013Observed: 52.91 ft at 4:00PM May 21, 2013Observed: 52.93 ft at 4:30PM May 21, 2013Observed: 52.93 ft at 5:00PM May 21, 2013Observed: 52.93 ft at 5:30PM May 21, 2013Observed: 52.93 ft at 6:00PM May 21, 2013Observed: 52.93 ft at 6:30PM May 21, 2013Observed: 52.93 ft at 7:00PM May 21, 2013Observed: 52.94 ft at 7:30PM May 21, 2013Observed: 52.95 ft at 8:00PM May 21, 2013Observed: 52.95 ft at 8:30PM May 21, 2013Observed: 52.95 ft at 9:00PM May 21, 2013Observed: 52.95 ft at 9:30PM May 21, 2013Observed: 52.97 ft at 10:00PM May 21, 2013Observed: 52.97 ft at 10:30PM May 21, 2013Observed: 52.99 ft at 11:00PM May 21, 2013Observed: 52.99 ft at 11:30PM May 21, 2013Observed: 53.01 ft at 12:00AM May 22, 2013Observed: 53.01 ft at 12:30AM May 22, 2013Observed: 53.01 ft at 1:00AM May 22, 2013Observed: 53.02 ft at 1:30AM May 22, 2013Observed: 53.03 ft at 2:00AM May 22, 2013Observed: 53.03 ft at 2:30AM May 22, 2013Observed: 53.03 ft at 3:00AM May 22, 2013Observed: 53.03 ft at 3:30AM May 22, 2013Observed: 53.03 ft at 4:00AM May 22, 2013Observed: 53.05 ft at 4:30AM May 22, 2013Observed: 53.05 ft at 5:00AM May 22, 2013Observed: 53.05 ft at 5:30AM May 22, 2013Observed: 53.05 ft at 6:00AM May 22, 2013Observed: 53.05 ft at 6:30AM May 22, 2013Observed: 53.06 ft at 7:00AM May 22, 2013Observed: 53.06 ft at 7:30AM May 22, 2013Highest Observation: 53.07 ft at 8:00AM May 22, 2013Highest Observation: 53.07 ft at 8:30AM May 22, 2013Highest Observation: 53.07 ft at 9:00AM May 22, 2013Highest Observation: 53.07 ft at 9:30AM May 22, 2013Highest Observation: 53.07 ft at 10:00AM May 22, 2013Highest Observation: 53.07 ft at 10:30AM May 22, 2013Highest Observation: 53.07 ft at 11:00AM May 22, 2013Forecast: 53.05 ft 5:00PM May 22, 2013Forecast: 53.09 ft 11:00PM May 22, 2013Forecast: 53.14 ft 5:00AM May 23, 2013Forecast: 53.22 ft 11:00AM May 23, 2013Highest Forecast: 53.28 ft 5:00PM May 23, 2013Highest Forecast: 53.28 ft 11:00PM May 23, 2013Forecast: 53.22 ft 5:00AM May 24, 2013Forecast: 53.14 ft 11:00AM May 24, 2013Forecast: 53.09 ft 5:00PM May 24, 2013Forecast: 53.06 ft 11:00PM May 24, 2013Forecast: 53.04 ft 5:00AM May 25, 2013Forecast: 53.02 ft 11:00AM May 25, 2013CENW1(plotting HGIRP) Graph Created (11:52AM May 22, 2013)ObservedForecast (issued 11:44AM May 21)Latest observed value: 53.07 ft at 11:00 AM PDT 22-May-2013. Flood Stage is 65 ft
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NOTE: Forecasts for the Chehalis River at Centralia are issued routinely year-round.
Return to Area Map
Upstream Gauge - near Doty Upstream Gauge Downstream Gauge Downstream Gauge - near Grand Mound
Flood Categories (in feet)
Major Flood Stage:72
Moderate Flood Stage:68.5
Flood Stage:65
Action Stage:0

Historical Crests
(1) 74.78 ft on 12/04/2007
(2) 74.31 ft on 02/09/1996
(3) 73.50 ft on 01/10/1990
(4) 72.40 ft on 01/08/2009
(5) 71.99 ft on 11/25/1986
Show More Historical Crests

Low Water Records
Legend
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 Collapse
73.4 the Chehalis River in Lewis County will cause severe near record flooding...with deep and swift flood waters inundating residential and business areas...roads including I-5...and farms. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Chehalis River Basin. A stage of 73.4 feet corresponds to a Phase IV flood in the Lewis County flood system.
72 the Chehalis River in Lewis County will cause major flooding...inundating residential and commercial areas...farms...and many roads including I-5. Flood waters will be deep and swift in some areas. Flooding will occur all along the river including headwaters...tributarieas...and other streams within and near the Chehalis River Basin. A stage of 72 feet corresponds to a Phase III flood in the Lewis County flood system.
68.5 the Chehalis River in Lewis County will flood some residential and commercial areas...with water encroaching upon the first floor of some homes and businesses. Swift flood waters will cover some roads. A stage of 68 feet corresponds to a Phase II flood in the Lewis County flood system.
65 the Chehalis River in Lewis County will cause shallow flooding of farm lands and some roads. A stage of 65 feet corresponds to a Phase I flood in the Lewis County flood warning system.
63 the Chehalis River in Lewis County will spill over its banks into nearby pasture lands around Chehalis and Centralia.
About This Location Collapse

Latitude: 46.711667° N, Longitude: 122.977500° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 65 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 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 100 ft 165 ft Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Other Data Sources:
Additional Information Collapse
Chehalis River Basin Flood Authority's Early Warning System:http://lewiscountywa.gov/chehalis-river-basin-flood-authority
Resources Collapse
Hydrologic Resources Additional Resources
Collaborative Agencies Collapse
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: 13-Mar-2013 6:31 PM 		Disclaimer
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