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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
Newaukum River near Chehalis Stage (ft)Flow (kcfs)Observed: 1.79 ft at 8:30PM May 20, 2013Observed: 1.79 ft at 9:00PM May 20, 2013Observed: 1.79 ft at 9:30PM May 20, 2013Observed: 1.79 ft at 10:00PM May 20, 2013Observed: 1.79 ft at 10:30PM May 20, 2013Observed: 1.79 ft at 11:00PM May 20, 2013Observed: 1.79 ft at 11:30PM May 20, 2013Observed: 1.79 ft at 12:00AM May 21, 2013Observed: 1.79 ft at 12:30AM May 21, 2013Observed: 1.79 ft at 1:00AM May 21, 2013Observed: 1.79 ft at 1:30AM May 21, 2013Observed: 1.79 ft at 2:00AM May 21, 2013Observed: 1.79 ft at 2:30AM May 21, 2013Observed: 1.79 ft at 3:00AM May 21, 2013Observed: 1.79 ft at 3:30AM May 21, 2013Observed: 1.79 ft at 4:00AM May 21, 2013Observed: 1.79 ft at 4:30AM May 21, 2013Observed: 1.79 ft at 5:00AM May 21, 2013Observed: 1.79 ft at 5:30AM May 21, 2013Observed: 1.79 ft at 6:00AM May 21, 2013Observed: 1.79 ft at 6:30AM May 21, 2013Observed: 1.79 ft at 7:00AM May 21, 2013Observed: 1.79 ft at 7:30AM May 21, 2013Observed: 1.79 ft at 8:00AM May 21, 2013Observed: 1.79 ft at 8:30AM May 21, 2013Observed: 1.8 ft at 9:00AM May 21, 2013Observed: 1.8 ft at 9:30AM May 21, 2013Observed: 1.8 ft at 10:00AM May 21, 2013Observed: 1.81 ft at 10:30AM May 21, 2013Observed: 1.81 ft at 11:00AM May 21, 2013Observed: 1.82 ft at 11:30AM May 21, 2013Observed: 1.83 ft at 12:00PM May 21, 2013Observed: 1.84 ft at 12:30PM May 21, 2013Observed: 1.85 ft at 1:00PM May 21, 2013Observed: 1.87 ft at 1:30PM May 21, 2013Observed: 1.89 ft at 2:00PM May 21, 2013Observed: 1.91 ft at 2:30PM May 21, 2013Observed: 1.93 ft at 3:00PM May 21, 2013Observed: 1.95 ft at 3:30PM May 21, 2013Observed: 1.97 ft at 4:00PM May 21, 2013Observed: 1.99 ft at 4:30PM May 21, 2013Observed: 2.01 ft at 5:00PM May 21, 2013Observed: 2.03 ft at 5:30PM May 21, 2013Observed: 2.05 ft at 6:00PM May 21, 2013Observed: 2.06 ft at 6:30PM May 21, 2013Observed: 2.08 ft at 7:00PM May 21, 2013Observed: 2.09 ft at 7:30PM May 21, 2013Observed: 2.09 ft at 8:00PM May 21, 2013Observed: 2.09 ft at 8:30PM May 21, 2013Observed: 2.09 ft at 9:00PM May 21, 2013Observed: 2.09 ft at 9:30PM May 21, 2013Observed: 2.09 ft at 10:00PM May 21, 2013Observed: 2.1 ft at 10:30PM May 21, 2013Observed: 2.1 ft at 11:00PM May 21, 2013Observed: 2.11 ft at 11:30PM May 21, 2013Observed: 2.11 ft at 12:00AM May 22, 2013Observed: 2.13 ft at 12:30AM May 22, 2013Observed: 2.15 ft at 1:00AM May 22, 2013Observed: 2.16 ft at 1:30AM May 22, 2013Observed: 2.17 ft at 2:00AM May 22, 2013Observed: 2.19 ft at 2:30AM May 22, 2013Observed: 2.2 ft at 3:00AM May 22, 2013Observed: 2.21 ft at 3:30AM May 22, 2013Observed: 2.21 ft at 4:00AM May 22, 2013Observed: 2.21 ft at 4:30AM May 22, 2013Observed: 2.21 ft at 5:00AM May 22, 2013Observed: 2.21 ft at 5:30AM May 22, 2013Observed: 2.21 ft at 6:00AM May 22, 2013Observed: 2.21 ft at 6:30AM May 22, 2013Observed: 2.21 ft at 7:00AM May 22, 2013Observed: 2.2 ft at 7:30AM May 22, 2013Observed: 2.19 ft at 8:00AM May 22, 2013Observed: 2.19 ft at 8:30AM May 22, 2013Observed: 2.18 ft at 9:00AM May 22, 2013Observed: 2.18 ft at 9:30AM May 22, 2013Observed: 2.17 ft at 10:00AM May 22, 2013Observed: 2.16 ft at 10:30AM May 22, 2013Observed: 2.16 ft at 11:00AM May 22, 2013Observed: 2.15 ft at 11:30AM May 22, 2013Observed: 2.15 ft at 12:00PM May 22, 2013Observed: 2.15 ft at 12:30PM May 22, 2013Observed: 2.15 ft at 1:00PM May 22, 2013Observed: 2.15 ft at 1:30PM May 22, 2013Observed: 2.15 ft at 2:00PM May 22, 2013Observed: 2.15 ft at 2:30PM May 22, 2013Observed: 2.15 ft at 3:00PM May 22, 2013Observed: 2.15 ft at 3:30PM May 22, 2013Observed: 2.16 ft at 4:00PM May 22, 2013Observed: 2.18 ft at 4:30PM May 22, 2013Observed: 2.2 ft at 5:00PM May 22, 2013Observed: 2.23 ft at 5:30PM May 22, 2013Observed: 2.25 ft at 6:00PM May 22, 2013Observed: 2.3 ft at 6:30PM May 22, 2013Observed: 2.36 ft at 7:00PM May 22, 2013Observed: 2.43 ft at 7:30PM May 22, 2013Observed: 2.52 ft at 8:00PM May 22, 2013Observed: 2.62 ft at 8:30PM May 22, 2013Observed: 2.71 ft at 9:00PM May 22, 2013Observed: 2.79 ft at 9:30PM May 22, 2013Observed: 2.85 ft at 10:00PM May 22, 2013Observed: 2.91 ft at 10:30PM May 22, 2013Observed: 2.95 ft at 11:00PM May 22, 2013Observed: 2.98 ft at 11:30PM May 22, 2013Observed: 3 ft at 12:00AM May 23, 2013Observed: 3.02 ft at 12:30AM May 23, 2013Observed: 3.03 ft at 1:00AM May 23, 2013Observed: 3.04 ft at 1:30AM May 23, 2013Observed: 3.04 ft at 2:00AM May 23, 2013Observed: 3.04 ft at 2:30AM May 23, 2013Observed: 3.04 ft at 3:00AM May 23, 2013Observed: 3.04 ft at 3:30AM May 23, 2013Observed: 3.04 ft at 4:00AM May 23, 2013Observed: 3.03 ft at 4:30AM May 23, 2013Observed: 3.01 ft at 5:00AM May 23, 2013Observed: 3 ft at 5:30AM May 23, 2013Observed: 2.99 ft at 6:00AM May 23, 2013Observed: 2.97 ft at 6:30AM May 23, 2013Observed: 2.96 ft at 7:00AM May 23, 2013Observed: 2.95 ft at 7:30AM May 23, 2013Observed: 2.95 ft at 8:00AM May 23, 2013Observed: 2.94 ft at 8:30AM May 23, 2013Observed: 2.93 ft at 9:00AM May 23, 2013Observed: 2.93 ft at 9:30AM May 23, 2013Observed: 2.92 ft at 10:00AM May 23, 2013Observed: 2.92 ft at 10:30AM May 23, 2013Observed: 2.91 ft at 11:00AM May 23, 2013Observed: 2.91 ft at 11:30AM May 23, 2013Observed: 2.91 ft at 12:00PM May 23, 2013Observed: 2.92 ft at 12:30PM May 23, 2013Observed: 2.93 ft at 1:00PM May 23, 2013Observed: 2.95 ft at 1:30PM May 23, 2013Observed: 2.98 ft at 2:00PM May 23, 2013Observed: 3 ft at 2:30PM May 23, 2013Observed: 3.04 ft at 3:00PM May 23, 2013Observed: 3.08 ft at 3:30PM May 23, 2013Observed: 3.12 ft at 4:00PM May 23, 2013Observed: 3.17 ft at 4:30PM May 23, 2013Observed: 3.23 ft at 5:00PM May 23, 2013Observed: 3.28 ft at 5:30PM May 23, 2013Observed: 3.34 ft at 6:00PM May 23, 2013Observed: 3.4 ft at 6:30PM May 23, 2013Observed: 3.46 ft at 7:00PM May 23, 2013Highest Observation: 3.52 ft at 7:30PM May 23, 2013Forecast: 3.11 ft 11:00PM May 23, 2013Highest Forecast: 3.34 ft 5:00AM May 24, 2013Forecast: 3.27 ft 11:00AM May 24, 2013Forecast: 3.01 ft 5:00PM May 24, 2013Forecast: 2.72 ft 11:00PM May 24, 2013Forecast: 2.5 ft 5:00AM May 25, 2013Forecast: 2.31 ft 11:00AM May 25, 2013Forecast: 2.16 ft 5:00PM May 25, 2013Forecast: 2.05 ft 11:00PM May 25, 2013Forecast: 1.98 ft 5:00AM May 26, 2013Forecast: 1.92 ft 11:00AM May 26, 2013Forecast: 1.9 ft 5:00PM May 26, 2013USGS--Water Resources of the United StatesNEWW1(plotting HGIRP) Graph Created (8:23PM May 23, 2013)ObservedForecast (issued 10:48AM May 23)Latest observed value: 3.52 ft at 7:30 PM PDT 23-May-2013. Flood Stage is 10.5 ft
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NOTE: Forecasts for the Newaukum River near Chehalis are issued routinely year-round.
Return to Area Map
Flood Categories (in feet)
Major Flood Stage:13.5
Moderate Flood Stage:12.5
Flood Stage:10.5
Action Stage:0

Historical Crests
(1) 13.54 ft on 02/08/1996
(2) 13.50 ft on 01/08/2009
(3) 13.45 ft on 12/04/2007
(4) 13.00 ft on 11/07/2006
(5) 12.76 ft on 11/24/1986
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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
13.5 flood waters will inundate most roads and a majority of residential and commercial areas within the region. Swift flood waters will become deep and hazardous...especially near river channels. A stage of 13.6 feet on the Newaukum corresponds to Phase 4 in the Lewis County flood system. Flooding will occur all along the river including headwaters...forks...tributaries...and other streams within and near the Newaukum River Basin.
12.5 deep and hazardous flood waters will inundate many roads and residential and commercial areas along the Newaukum River and its forks. Impacted roadways and surrounding areas include SR 508...Jackson Hwy. and Tune...Rush...Sommerville...Griel...Hamilton...Tauscher...Guerrier...Kirkland...Macomber...Rice...Senn...Lucas Creek...Middle Fork and North Fork...Bishop...Shorey...Labree...Gish...Yates Roads. A stage of 12.7 on the Newaukum roughly corresponds to Phase 3 flood in the Lewis County flood system.
10.5 flood waters will inundate many roads and residential and commercial areas along the Newaukum River and its forks. Flooding in some areas may be deep and hazardous especially near rivers. Impacted roadways and surrounding areas include Jackson Hwy. and Tune...Rush...Sommerville...Griel...Hamilton...Tauscher...Guerrier...Kirkland...Macomber...Rice...Senn...Lucas Creek...Middle Fork and North Fork Roads. A stage of 10.5 on the Newaukum roughly corresponds to Phase 2 flood in the Lewis County flood system.
About This Location Collapse

Latitude: 46.620278° N, Longitude: 122.943889° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 10.5 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 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other 190 ft 190 ft  

Other Data Sources:
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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
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Seattle Weather Forecast Office
7600 Sandpoint Way NE
Seattle, WA 98115-6349
(206) 526-6087
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