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Hydrograph River at a Glance Download Inundation
Mapping
Chehalis River at Centralia Stage (ft)Flow (kcfs)Observed: 153 ft at 8:30PM Apr 20, 2024Observed: 153.02 ft at 8:45PM Apr 20, 2024Highest Observation: 153.03 ft at 9:00PM Apr 20, 2024Observed: 153.02 ft at 9:15PM Apr 20, 2024Observed: 152.97 ft at 9:30PM Apr 20, 2024Observed: 152.99 ft at 9:45PM Apr 20, 2024Observed: 153.01 ft at 10:00PM Apr 20, 2024Observed: 153.01 ft at 10:15PM Apr 20, 2024Observed: 152.98 ft at 10:30PM Apr 20, 2024Observed: 152.99 ft at 10:45PM Apr 20, 2024Observed: 153.01 ft at 11:00PM Apr 20, 2024Observed: 153.02 ft at 11:15PM Apr 20, 2024Observed: 153.01 ft at 11:30PM Apr 20, 2024Observed: 153.02 ft at 11:45PM Apr 20, 2024Observed: 153.02 ft at 12:00AM Apr 21, 2024Observed: 153.02 ft at 12:15AM Apr 21, 2024Observed: 153.02 ft at 12:30AM Apr 21, 2024Observed: 153.02 ft at 12:45AM Apr 21, 2024Observed: 153.02 ft at 1:00AM Apr 21, 2024Observed: 153 ft at 1:15AM Apr 21, 2024Observed: 153.02 ft at 1:30AM Apr 21, 2024Observed: 153.02 ft at 1:45AM Apr 21, 2024Observed: 153.01 ft at 2:00AM Apr 21, 2024Observed: 152.99 ft at 2:15AM Apr 21, 2024Observed: 152.99 ft at 2:30AM Apr 21, 2024Observed: 153.02 ft at 2:45AM Apr 21, 2024Observed: 153.02 ft at 3:00AM Apr 21, 2024Observed: 153.01 ft at 3:15AM Apr 21, 2024Observed: 153.02 ft at 3:30AM Apr 21, 2024Observed: 153.01 ft at 3:45AM Apr 21, 2024Observed: 153.01 ft at 4:00AM Apr 21, 2024Observed: 153.01 ft at 4:15AM Apr 21, 2024Observed: 153.01 ft at 4:30AM Apr 21, 2024Observed: 153.01 ft at 4:45AM Apr 21, 2024Observed: 153.01 ft at 5:00AM Apr 21, 2024Observed: 153.01 ft at 5:15AM Apr 21, 2024Observed: 153.01 ft at 5:30AM Apr 21, 2024Observed: 153.01 ft at 5:45AM Apr 21, 2024Observed: 153.01 ft at 6:00AM Apr 21, 2024Observed: 153.01 ft at 6:15AM Apr 21, 2024Observed: 153.01 ft at 6:30AM Apr 21, 2024Observed: 153.01 ft at 6:45AM Apr 21, 2024Observed: 153.01 ft at 7:00AM Apr 21, 2024Observed: 153.01 ft at 7:15AM Apr 21, 2024Observed: 153 ft at 7:30AM Apr 21, 2024Observed: 153 ft at 7:45AM Apr 21, 2024Observed: 153 ft at 8:00AM Apr 21, 2024Observed: 153 ft at 8:15AM Apr 21, 2024Observed: 152.96 ft at 8:30AM Apr 21, 2024Observed: 152.96 ft at 8:45AM Apr 21, 2024Observed: 152.98 ft at 9:00AM Apr 21, 2024Observed: 152.96 ft at 9:15AM Apr 21, 2024Observed: 152.95 ft at 9:30AM Apr 21, 2024Observed: 152.95 ft at 9:45AM Apr 21, 2024Observed: 152.96 ft at 10:00AM Apr 21, 2024Observed: 152.95 ft at 10:15AM Apr 21, 2024Observed: 152.94 ft at 10:30AM Apr 21, 2024Observed: 152.94 ft at 10:45AM Apr 21, 2024Observed: 152.93 ft at 11:00AM Apr 21, 2024Observed: 152.94 ft at 11:15AM Apr 21, 2024Observed: 152.95 ft at 11:30AM Apr 21, 2024Observed: 152.94 ft at 11:45AM Apr 21, 2024Observed: 152.92 ft at 12:00PM Apr 21, 2024Observed: 152.93 ft at 12:15PM Apr 21, 2024Observed: 152.95 ft at 12:30PM Apr 21, 2024Observed: 152.98 ft at 12:45PM Apr 21, 2024Observed: 152.99 ft at 1:00PM Apr 21, 2024Observed: 152.98 ft at 1:15PM Apr 21, 2024Observed: 152.95 ft at 1:30PM Apr 21, 2024Observed: 152.93 ft at 1:45PM Apr 21, 2024Observed: 152.95 ft at 2:00PM Apr 21, 2024Observed: 152.94 ft at 2:15PM Apr 21, 2024Observed: 152.97 ft at 2:30PM Apr 21, 2024Observed: 152.94 ft at 2:45PM Apr 21, 2024Observed: 152.98 ft at 3:00PM Apr 21, 2024Observed: 152.99 ft at 3:15PM Apr 21, 2024Observed: 152.95 ft at 3:30PM Apr 21, 2024Observed: 152.98 ft at 3:45PM Apr 21, 2024Observed: 152.96 ft at 4:00PM Apr 21, 2024Observed: 152.94 ft at 4:15PM Apr 21, 2024Observed: 152.94 ft at 4:30PM Apr 21, 2024Observed: 152.97 ft at 4:45PM Apr 21, 2024Observed: 152.97 ft at 5:00PM Apr 21, 2024Observed: 152.94 ft at 5:15PM Apr 21, 2024Observed: 152.99 ft at 5:30PM Apr 21, 2024Observed: 152.96 ft at 5:45PM Apr 21, 2024Observed: 152.97 ft at 6:00PM Apr 21, 2024Observed: 152.97 ft at 6:15PM Apr 21, 2024Observed: 152.99 ft at 6:30PM Apr 21, 2024Observed: 153 ft at 6:45PM Apr 21, 2024Observed: 153 ft at 7:00PM Apr 21, 2024Observed: 153 ft at 7:15PM Apr 21, 2024Observed: 153 ft at 7:30PM Apr 21, 2024Observed: 153 ft at 7:45PM Apr 21, 2024Observed: 153 ft at 8:00PM Apr 21, 2024Observed: 153 ft at 8:15PM Apr 21, 2024Observed: 153 ft at 8:30PM Apr 21, 2024Observed: 153 ft at 8:45PM Apr 21, 2024Observed: 153 ft at 9:00PM Apr 21, 2024Observed: 153 ft at 9:15PM Apr 21, 2024Observed: 153 ft at 9:30PM Apr 21, 2024Observed: 153 ft at 9:45PM Apr 21, 2024Observed: 153 ft at 10:00PM Apr 21, 2024Observed: 153 ft at 10:15PM Apr 21, 2024Observed: 153 ft at 10:30PM Apr 21, 2024Observed: 153 ft at 10:45PM Apr 21, 2024Observed: 153 ft at 11:00PM Apr 21, 2024Observed: 153 ft at 11:15PM Apr 21, 2024Observed: 153 ft at 11:30PM Apr 21, 2024Observed: 153 ft at 11:45PM Apr 21, 2024Observed: 153 ft at 12:00AM Apr 22, 2024Observed: 153 ft at 12:15AM Apr 22, 2024Observed: 153 ft at 12:30AM Apr 22, 2024Observed: 153 ft at 12:45AM Apr 22, 2024Observed: 153 ft at 1:00AM Apr 22, 2024Observed: 153 ft at 1:15AM Apr 22, 2024Observed: 153 ft at 1:30AM Apr 22, 2024Observed: 153 ft at 1:45AM Apr 22, 2024Observed: 153 ft at 2:00AM Apr 22, 2024Observed: 153 ft at 2:15AM Apr 22, 2024Observed: 153 ft at 2:30AM Apr 22, 2024Observed: 153 ft at 2:45AM Apr 22, 2024Observed: 153 ft at 3:00AM Apr 22, 2024Observed: 153 ft at 3:15AM Apr 22, 2024Observed: 153 ft at 3:30AM Apr 22, 2024Observed: 153 ft at 3:45AM Apr 22, 2024Observed: 153 ft at 4:00AM Apr 22, 2024Observed: 153 ft at 4:15AM Apr 22, 2024Observed: 153 ft at 4:30AM Apr 22, 2024Observed: 153 ft at 4:45AM Apr 22, 2024Observed: 153 ft at 5:00AM Apr 22, 2024Observed: 153 ft at 5:15AM Apr 22, 2024Observed: 153 ft at 5:30AM Apr 22, 2024Observed: 153 ft at 5:45AM Apr 22, 2024Observed: 152.99 ft at 6:00AM Apr 22, 2024Observed: 152.99 ft at 6:15AM Apr 22, 2024Observed: 152.99 ft at 6:30AM Apr 22, 2024Observed: 153 ft at 6:45AM Apr 22, 2024Observed: 152.99 ft at 7:00AM Apr 22, 2024Observed: 152.99 ft at 7:15AM Apr 22, 2024Observed: 152.99 ft at 7:30AM Apr 22, 2024Observed: 152.99 ft at 7:45AM Apr 22, 2024Observed: 152.98 ft at 8:00AM Apr 22, 2024Observed: 152.98 ft at 8:15AM Apr 22, 2024Observed: 152.97 ft at 8:30AM Apr 22, 2024Observed: 152.98 ft at 8:45AM Apr 22, 2024Observed: 152.95 ft at 9:00AM Apr 22, 2024Observed: 152.94 ft at 9:15AM Apr 22, 2024Observed: 152.92 ft at 9:30AM Apr 22, 2024Observed: 152.91 ft at 9:45AM Apr 22, 2024Observed: 152.94 ft at 10:00AM Apr 22, 2024Observed: 152.91 ft at 10:15AM Apr 22, 2024Observed: 152.92 ft at 10:30AM Apr 22, 2024Observed: 152.92 ft at 10:45AM Apr 22, 2024Observed: 152.91 ft at 11:00AM Apr 22, 2024Observed: 152.91 ft at 11:15AM Apr 22, 2024Observed: 152.91 ft at 11:30AM Apr 22, 2024Observed: 152.91 ft at 11:45AM Apr 22, 2024Observed: 152.92 ft at 12:00PM Apr 22, 2024Observed: 152.9 ft at 12:15PM Apr 22, 2024Observed: 152.9 ft at 12:30PM Apr 22, 2024Observed: 152.9 ft at 12:45PM Apr 22, 2024Observed: 152.89 ft at 1:00PM Apr 22, 2024Observed: 152.91 ft at 1:15PM Apr 22, 2024Observed: 152.91 ft at 1:30PM Apr 22, 2024Observed: 152.89 ft at 1:45PM Apr 22, 2024Observed: 152.91 ft at 2:00PM Apr 22, 2024Observed: 152.89 ft at 2:15PM Apr 22, 2024Observed: 152.9 ft at 2:30PM Apr 22, 2024Observed: 152.9 ft at 2:45PM Apr 22, 2024Observed: 152.92 ft at 3:00PM Apr 22, 2024Observed: 152.9 ft at 3:15PM Apr 22, 2024Observed: 152.91 ft at 3:30PM Apr 22, 2024Observed: 152.9 ft at 3:45PM Apr 22, 2024Observed: 152.91 ft at 4:00PM Apr 22, 2024Observed: 152.9 ft at 4:15PM Apr 22, 2024Observed: 152.91 ft at 4:30PM Apr 22, 2024Observed: 152.91 ft at 4:45PM Apr 22, 2024Observed: 152.93 ft at 5:00PM Apr 22, 2024Observed: 152.91 ft at 5:15PM Apr 22, 2024Observed: 152.91 ft at 5:30PM Apr 22, 2024Observed: 152.91 ft at 5:45PM Apr 22, 2024Observed: 152.91 ft at 6:00PM Apr 22, 2024Observed: 152.93 ft at 6:15PM Apr 22, 2024Observed: 152.9 ft at 6:30PM Apr 22, 2024Observed: 152.92 ft at 6:45PM Apr 22, 2024Observed: 152.94 ft at 7:00PM Apr 22, 2024Observed: 152.96 ft at 7:15PM Apr 22, 2024Observed: 152.93 ft at 7:30PM Apr 22, 2024Observed: 152.95 ft at 7:45PM Apr 22, 2024Observed: 152.96 ft at 8:00PM Apr 22, 2024Observed: 152.96 ft at 8:15PM Apr 22, 2024Observed: 152.96 ft at 8:30PM Apr 22, 2024Observed: 152.96 ft at 8:45PM Apr 22, 2024Observed: 152.96 ft at 9:00PM Apr 22, 2024Observed: 152.96 ft at 9:15PM Apr 22, 2024Observed: 152.96 ft at 9:30PM Apr 22, 2024Observed: 152.96 ft at 9:45PM Apr 22, 2024Observed: 152.96 ft at 10:00PM Apr 22, 2024Observed: 152.96 ft at 10:15PM Apr 22, 2024Observed: 152.96 ft at 10:30PM Apr 22, 2024Observed: 152.96 ft at 10:45PM Apr 22, 2024Observed: 152.94 ft at 11:00PM Apr 22, 2024Observed: 152.96 ft at 11:15PM Apr 22, 2024Observed: 152.96 ft at 11:30PM Apr 22, 2024Observed: 152.95 ft at 11:45PM Apr 22, 2024Observed: 152.96 ft at 12:00AM Apr 23, 2024Observed: 152.95 ft at 12:15AM Apr 23, 2024Observed: 152.95 ft at 12:30AM Apr 23, 2024Observed: 152.96 ft at 12:45AM Apr 23, 2024Observed: 152.95 ft at 1:00AM Apr 23, 2024Observed: 152.95 ft at 1:15AM Apr 23, 2024Observed: 152.95 ft at 1:30AM Apr 23, 2024Observed: 152.95 ft at 1:45AM Apr 23, 2024Observed: 152.95 ft at 2:00AM Apr 23, 2024Observed: 152.95 ft at 2:15AM Apr 23, 2024Observed: 152.95 ft at 2:30AM Apr 23, 2024Observed: 152.95 ft at 2:45AM Apr 23, 2024Observed: 152.95 ft at 3:00AM Apr 23, 2024Observed: 152.95 ft at 3:15AM Apr 23, 2024Observed: 152.95 ft at 3:30AM Apr 23, 2024Observed: 152.95 ft at 3:45AM Apr 23, 2024Observed: 152.95 ft at 4:00AM Apr 23, 2024Observed: 152.95 ft at 4:15AM Apr 23, 2024Observed: 152.95 ft at 4:30AM Apr 23, 2024Observed: 152.95 ft at 4:45AM Apr 23, 2024Observed: 152.95 ft at 5:00AM Apr 23, 2024Observed: 152.95 ft at 5:15AM Apr 23, 2024Observed: 152.94 ft at 5:30AM Apr 23, 2024Observed: 152.94 ft at 5:45AM Apr 23, 2024Observed: 152.94 ft at 6:00AM Apr 23, 2024Observed: 152.94 ft at 6:15AM Apr 23, 2024Observed: 152.94 ft at 6:30AM Apr 23, 2024Observed: 152.94 ft at 6:45AM Apr 23, 2024Observed: 152.94 ft at 7:00AM Apr 23, 2024Observed: 152.94 ft at 7:15AM Apr 23, 2024Observed: 152.94 ft at 7:30AM Apr 23, 2024Observed: 152.94 ft at 7:45AM Apr 23, 2024Observed: 152.93 ft at 8:00AM Apr 23, 2024Observed: 152.93 ft at 8:15AM Apr 23, 2024Observed: 152.93 ft at 8:30AM Apr 23, 2024Observed: 152.93 ft at 8:45AM Apr 23, 2024Observed: 152.92 ft at 9:00AM Apr 23, 2024Observed: 152.92 ft at 9:15AM Apr 23, 2024Observed: 152.92 ft at 9:30AM Apr 23, 2024Observed: 152.92 ft at 9:45AM Apr 23, 2024Observed: 152.92 ft at 10:00AM Apr 23, 2024Observed: 152.91 ft at 10:15AM Apr 23, 2024Observed: 152.92 ft at 10:30AM Apr 23, 2024Observed: 152.92 ft at 10:45AM Apr 23, 2024Observed: 152.92 ft at 11:00AM Apr 23, 2024Observed: 152.92 ft at 11:15AM Apr 23, 2024Observed: 152.91 ft at 11:30AM Apr 23, 2024Observed: 152.91 ft at 11:45AM Apr 23, 2024Observed: 152.88 ft at 12:00PM Apr 23, 2024Observed: 152.85 ft at 12:15PM Apr 23, 2024Observed: 152.91 ft at 12:30PM Apr 23, 2024Observed: 152.91 ft at 12:45PM Apr 23, 2024Observed: 152.88 ft at 1:00PM Apr 23, 2024Observed: 152.9 ft at 1:15PM Apr 23, 2024Observed: 152.9 ft at 1:30PM Apr 23, 2024Observed: 152.9 ft at 1:45PM Apr 23, 2024Observed: 152.89 ft at 2:00PM Apr 23, 2024Observed: 152.88 ft at 2:15PM Apr 23, 2024Observed: 152.9 ft at 2:30PM Apr 23, 2024Observed: 152.88 ft at 2:45PM Apr 23, 2024Observed: 152.87 ft at 3:00PM Apr 23, 2024Observed: 152.9 ft at 3:15PM Apr 23, 2024Observed: 152.86 ft at 3:30PM Apr 23, 2024Observed: 152.87 ft at 3:45PM Apr 23, 2024Observed: 152.9 ft at 4:00PM Apr 23, 2024Observed: 152.9 ft at 4:15PM Apr 23, 2024Observed: 152.9 ft at 4:30PM Apr 23, 2024Observed: 152.87 ft at 4:45PM Apr 23, 2024Observed: 152.89 ft at 5:00PM Apr 23, 2024Observed: 152.9 ft at 5:15PM Apr 23, 2024Observed: 152.88 ft at 5:30PM Apr 23, 2024Observed: 152.91 ft at 5:45PM Apr 23, 2024Observed: 152.9 ft at 6:00PM Apr 23, 2024Observed: 152.9 ft at 6:15PM Apr 23, 2024Observed: 152.91 ft at 6:30PM Apr 23, 2024Observed: 152.9 ft at 6:45PM Apr 23, 2024Observed: 152.91 ft at 7:00PM Apr 23, 2024Forecast: 152.87 ft 11:00PM Apr 23, 2024Forecast: 152.86 ft 5:00AM Apr 24, 2024Forecast: 152.84 ft 11:00AM Apr 24, 2024Forecast: 152.81 ft 5:00PM Apr 24, 2024Forecast: 152.79 ft 11:00PM Apr 24, 2024Forecast: 152.78 ft 5:00AM Apr 25, 2024Forecast: 152.77 ft 11:00AM Apr 25, 2024Forecast: 152.76 ft 5:00PM Apr 25, 2024Forecast: 152.75 ft 11:00PM Apr 25, 2024Forecast: 152.77 ft 5:00AM Apr 26, 2024Forecast: 152.86 ft 11:00AM Apr 26, 2024Forecast: 153.03 ft 5:00PM Apr 26, 2024Forecast: 153.16 ft 11:00PM Apr 26, 2024Forecast: 153.23 ft 5:00AM Apr 27, 2024Forecast: 153.25 ft 11:00AM Apr 27, 2024Forecast: 153.25 ft 5:00PM Apr 27, 2024Forecast: 153.26 ft 11:00PM Apr 27, 2024Forecast: 153.3 ft 5:00AM Apr 28, 2024Forecast: 153.32 ft 11:00AM Apr 28, 2024Forecast: 153.34 ft 5:00PM Apr 28, 2024Forecast: 153.36 ft 11:00PM Apr 28, 2024Forecast: 153.39 ft 5:00AM Apr 29, 2024Forecast: 153.48 ft 11:00AM Apr 29, 2024Forecast: 153.55 ft 5:00PM Apr 29, 2024Forecast: 153.62 ft 11:00PM Apr 29, 2024Forecast: 153.69 ft 5:00AM Apr 30, 2024Forecast: 153.76 ft 11:00AM Apr 30, 2024Highest Forecast: 153.82 ft 5:00PM Apr 30, 2024USGS--Water Resources of the United StatesCENW1(plotting HGIRG) Graph Created (8:20PM Apr 23, 2024)ObservedForecast (issued 2:47PM Apr 23)Latest observed value: 152.91 ft at 7:00 PM PDT 23-Apr-2024. Flood Stage is 168.5 ft
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About this graph
Tabular Data (UTC)
Tabular Data (PDT)
XML Data
RSS Files
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 at Centralia are issued routinely year-round.

Return to Area Map
Upstream Gauge - at WWTP at Chehalis Upstream Gauge Downstream Gauge Downstream Gauge - near Grand Mound
Flood Categories (in feet)
Major Flood Stage: 175.5
Moderate Flood Stage: 172
Flood Stage: 168.5
Action Stage: 166
Low Stage (in feet): -9999

Historic Crests
(1) 178.10 ft on 12/04/2007
(2) 174.93 ft on 01/07/2022 (P)
(3) 74.78 ft on 12/04/2007
(4) 74.31 ft on 02/09/1996
(5) 73.50 ft on 01/10/1990
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 174.93 ft on 01/07/2022 (P)
(2) 65.07 ft on 02/10/2017
(3) 67.86 ft on 12/10/2015 (P)
(4) 62.25 ft on 01/06/2015 (P)
(5) 62.46 ft on 02/18/2014 (P)
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) 48.00 ft on 09/18/2012
Show More Low Water Records
Zoom Level:16
KML Image
Gauge LocationGauge Map Marker
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
If you notice any errors in the below information, please contact our Webmaster
176.7 the Chehalis River in Lewis County will cause severe near record flooding...with deep and swift flood waters inundating farms...residential and business areas...and roads on both sides of I-5...including I-5 and SR 6. Much of Chehalise and Centralia will be flooded. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Chehalis River Basin. This stage corresponds roughly to a Phase 4 flood in the Lewis County flood system.
175.5 the Chehalis River in Lewis County will cause major flooding...inundating residential and commercial areas...farms...and many roads on both sides of I-5...including I-5 and SR 6. Flood waters will be deep and swift in some areas. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Chehalis River Basin. This stage corresponds roughly to a Phase 3 flood in the Lewis County flood system.
173.5 the Chehalis River in Lewis County will cause moderate flooding including Fort Borst Park...residential and commercial areas...farms...and many roads from Chehalis to Centralia. Flood waters begin to inundate SR 6...I-5 ramps at SR 6...Main St Chehalis...and around Plummers and Hayes Lakes. Swift flood waters will cover some roads. This stage corresponds roughly to a Phase 2 flood in the Lewis County flood system.
172 the Chehalis River in Lewis County will cause moderate flooding including Fort Borst Park...farms...and some residential and commercial areas...with water encroaching upon the first floor of some homes and businesses. Flooded roads include SR 6...Florida Ave...Donahue Rd...Airport Rd...Military Rd...and Nick Rd. Swift flood waters will cover some roads. This stage corresponds roughly to a Phase 2 flood in the Lewis County flood system.
170.5 the Chehalis River in Lewis County will flood Riverside Golf Course...farms...and some residential areas around Florida Ave...Donahue Rd...Airport Rd...and Military Rd. Swift flood waters will cover some roads. This stage corresponds roughly to a Phase 1 flood in the Lewis County flood system.
168.5 the Chehalis River in Lewis County will cause shallow flooding of farm lands and some roads. Roads include Airport Rd, Florida Ave in Chehalis and Military Rd in Centralia. This stage corresponds roughly to a Phase 1 flood in the Lewis County flood warning system.
166.5 the Chehalis River in Lewis County will spill over its banks into nearby pasture lands around Chehalis and Centralia.
About This Location Collapse

Latitude: 46.711721° N, Longitude: 122.978476° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 168.5 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 168.5 ft Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 100 ft 164 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:

Additional Information Collapse
Chehalis River Basin Flood Authority's Early Warning System: https://lewiscountywa.gov/departments/community-development/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: 2-Nov-2020 7:27 PM
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