Skip Navigation Link weather.gov  
NOAA logo - Click to go to the NOAA homepage National Weather Service NWS logo - Click to go to the NWS homepage
Advanced Hydrologic Prediction Service
Image background of Navigation bar Left
Bookmark and Share Navigation Bar End Cap

  
 

Web Portal Changes:

Please visit https://www.weather.gov/owp/operations for more information.



Hydrograph River at a Glance Download
Chehalis River near Grand Mound Stage (ft)Flow (kcfs)Observed: 132.16 ft at 5:15AM Mar 26, 2024Observed: 132.16 ft at 5:30AM Mar 26, 2024Observed: 132.16 ft at 5:45AM Mar 26, 2024Observed: 132.16 ft at 6:00AM Mar 26, 2024Observed: 132.17 ft at 6:15AM Mar 26, 2024Observed: 132.17 ft at 6:30AM Mar 26, 2024Observed: 132.17 ft at 6:45AM Mar 26, 2024Observed: 132.17 ft at 7:00AM Mar 26, 2024Observed: 132.17 ft at 7:15AM Mar 26, 2024Observed: 132.17 ft at 7:30AM Mar 26, 2024Observed: 132.17 ft at 7:45AM Mar 26, 2024Observed: 132.18 ft at 8:00AM Mar 26, 2024Observed: 132.18 ft at 8:15AM Mar 26, 2024Observed: 132.18 ft at 8:30AM Mar 26, 2024Observed: 132.18 ft at 8:45AM Mar 26, 2024Observed: 132.18 ft at 9:00AM Mar 26, 2024Observed: 132.19 ft at 9:15AM Mar 26, 2024Observed: 132.19 ft at 9:30AM Mar 26, 2024Observed: 132.19 ft at 9:45AM Mar 26, 2024Observed: 132.19 ft at 10:00AM Mar 26, 2024Observed: 132.19 ft at 10:15AM Mar 26, 2024Observed: 132.2 ft at 10:30AM Mar 26, 2024Observed: 132.2 ft at 10:45AM Mar 26, 2024Observed: 132.2 ft at 11:00AM Mar 26, 2024Observed: 132.2 ft at 11:15AM Mar 26, 2024Observed: 132.2 ft at 11:30AM Mar 26, 2024Observed: 132.2 ft at 11:45AM Mar 26, 2024Observed: 132.21 ft at 12:00PM Mar 26, 2024Observed: 132.21 ft at 12:15PM Mar 26, 2024Observed: 132.21 ft at 12:30PM Mar 26, 2024Observed: 132.21 ft at 12:45PM Mar 26, 2024Observed: 132.21 ft at 1:00PM Mar 26, 2024Observed: 132.21 ft at 1:15PM Mar 26, 2024Observed: 132.21 ft at 1:30PM Mar 26, 2024Observed: 132.21 ft at 1:45PM Mar 26, 2024Observed: 132.21 ft at 2:00PM Mar 26, 2024Observed: 132.21 ft at 2:15PM Mar 26, 2024Observed: 132.22 ft at 2:30PM Mar 26, 2024Observed: 132.21 ft at 2:45PM Mar 26, 2024Observed: 132.21 ft at 3:00PM Mar 26, 2024Observed: 132.22 ft at 3:15PM Mar 26, 2024Observed: 132.22 ft at 3:30PM Mar 26, 2024Observed: 132.22 ft at 3:45PM Mar 26, 2024Observed: 132.22 ft at 4:00PM Mar 26, 2024Observed: 132.22 ft at 4:15PM Mar 26, 2024Observed: 132.22 ft at 4:30PM Mar 26, 2024Observed: 132.22 ft at 4:45PM Mar 26, 2024Observed: 132.22 ft at 5:00PM Mar 26, 2024Observed: 132.22 ft at 5:15PM Mar 26, 2024Observed: 132.22 ft at 5:30PM Mar 26, 2024Observed: 132.22 ft at 5:45PM Mar 26, 2024Observed: 132.22 ft at 6:00PM Mar 26, 2024Observed: 132.22 ft at 6:15PM Mar 26, 2024Observed: 132.22 ft at 6:30PM Mar 26, 2024Observed: 132.22 ft at 6:45PM Mar 26, 2024Observed: 132.22 ft at 7:00PM Mar 26, 2024Observed: 132.22 ft at 7:15PM Mar 26, 2024Observed: 132.22 ft at 7:30PM Mar 26, 2024Observed: 132.22 ft at 7:45PM Mar 26, 2024Observed: 132.22 ft at 8:00PM Mar 26, 2024Observed: 132.22 ft at 8:15PM Mar 26, 2024Observed: 132.22 ft at 8:30PM Mar 26, 2024Observed: 132.22 ft at 8:45PM Mar 26, 2024Observed: 132.21 ft at 9:00PM Mar 26, 2024Observed: 132.21 ft at 9:15PM Mar 26, 2024Observed: 132.21 ft at 9:30PM Mar 26, 2024Observed: 132.21 ft at 9:45PM Mar 26, 2024Observed: 132.21 ft at 10:00PM Mar 26, 2024Observed: 132.21 ft at 10:15PM Mar 26, 2024Observed: 132.21 ft at 10:30PM Mar 26, 2024Observed: 132.21 ft at 10:45PM Mar 26, 2024Observed: 132.21 ft at 11:00PM Mar 26, 2024Observed: 132.21 ft at 11:15PM Mar 26, 2024Observed: 132.2 ft at 11:30PM Mar 26, 2024Observed: 132.2 ft at 11:45PM Mar 26, 2024Observed: 132.2 ft at 12:00AM Mar 27, 2024Observed: 132.2 ft at 12:15AM Mar 27, 2024Observed: 132.2 ft at 12:30AM Mar 27, 2024Observed: 132.2 ft at 12:45AM Mar 27, 2024Observed: 132.2 ft at 1:00AM Mar 27, 2024Observed: 132.2 ft at 1:15AM Mar 27, 2024Observed: 132.2 ft at 1:30AM Mar 27, 2024Observed: 132.2 ft at 1:45AM Mar 27, 2024Observed: 132.19 ft at 2:00AM Mar 27, 2024Observed: 132.19 ft at 2:15AM Mar 27, 2024Observed: 132.19 ft at 2:30AM Mar 27, 2024Observed: 132.19 ft at 2:45AM Mar 27, 2024Observed: 132.19 ft at 3:00AM Mar 27, 2024Observed: 132.19 ft at 3:15AM Mar 27, 2024Observed: 132.19 ft at 3:30AM Mar 27, 2024Observed: 132.19 ft at 3:45AM Mar 27, 2024Observed: 132.19 ft at 4:00AM Mar 27, 2024Observed: 132.19 ft at 4:15AM Mar 27, 2024Observed: 132.19 ft at 4:30AM Mar 27, 2024Observed: 132.19 ft at 4:45AM Mar 27, 2024Observed: 132.19 ft at 5:00AM Mar 27, 2024Observed: 132.19 ft at 5:15AM Mar 27, 2024Observed: 132.19 ft at 5:30AM Mar 27, 2024Observed: 132.19 ft at 5:45AM Mar 27, 2024Observed: 132.19 ft at 6:00AM Mar 27, 2024Observed: 132.18 ft at 6:15AM Mar 27, 2024Observed: 132.18 ft at 6:30AM Mar 27, 2024Observed: 132.18 ft at 6:45AM Mar 27, 2024Observed: 132.18 ft at 7:00AM Mar 27, 2024Observed: 132.18 ft at 7:15AM Mar 27, 2024Observed: 132.18 ft at 7:30AM Mar 27, 2024Observed: 132.18 ft at 7:45AM Mar 27, 2024Observed: 132.18 ft at 8:00AM Mar 27, 2024Observed: 132.18 ft at 8:15AM Mar 27, 2024Observed: 132.18 ft at 8:30AM Mar 27, 2024Observed: 132.17 ft at 8:45AM Mar 27, 2024Observed: 132.17 ft at 9:00AM Mar 27, 2024Observed: 132.17 ft at 9:15AM Mar 27, 2024Observed: 132.17 ft at 9:30AM Mar 27, 2024Observed: 132.17 ft at 9:45AM Mar 27, 2024Observed: 132.17 ft at 10:00AM Mar 27, 2024Observed: 132.16 ft at 10:15AM Mar 27, 2024Observed: 132.16 ft at 10:30AM Mar 27, 2024Observed: 132.16 ft at 10:45AM Mar 27, 2024Observed: 132.16 ft at 11:00AM Mar 27, 2024Observed: 132.16 ft at 11:15AM Mar 27, 2024Observed: 132.16 ft at 11:30AM Mar 27, 2024Observed: 132.16 ft at 11:45AM Mar 27, 2024Observed: 132.16 ft at 12:00PM Mar 27, 2024Observed: 132.16 ft at 12:15PM Mar 27, 2024Observed: 132.15 ft at 12:30PM Mar 27, 2024Observed: 132.16 ft at 12:45PM Mar 27, 2024Observed: 132.16 ft at 1:00PM Mar 27, 2024Observed: 132.16 ft at 1:15PM Mar 27, 2024Observed: 132.16 ft at 1:30PM Mar 27, 2024Observed: 132.16 ft at 1:45PM Mar 27, 2024Observed: 132.16 ft at 2:00PM Mar 27, 2024Observed: 132.16 ft at 2:15PM Mar 27, 2024Observed: 132.16 ft at 2:30PM Mar 27, 2024Observed: 132.17 ft at 2:45PM Mar 27, 2024Observed: 132.17 ft at 3:00PM Mar 27, 2024Observed: 132.17 ft at 3:15PM Mar 27, 2024Observed: 132.18 ft at 3:30PM Mar 27, 2024Observed: 132.18 ft at 3:45PM Mar 27, 2024Observed: 132.18 ft at 4:00PM Mar 27, 2024Observed: 132.19 ft at 4:15PM Mar 27, 2024Observed: 132.19 ft at 4:30PM Mar 27, 2024Observed: 132.2 ft at 4:45PM Mar 27, 2024Observed: 132.21 ft at 5:00PM Mar 27, 2024Observed: 132.21 ft at 5:15PM Mar 27, 2024Observed: 132.22 ft at 5:30PM Mar 27, 2024Observed: 132.23 ft at 5:45PM Mar 27, 2024Observed: 132.24 ft at 6:00PM Mar 27, 2024Observed: 132.24 ft at 6:15PM Mar 27, 2024Observed: 132.25 ft at 6:30PM Mar 27, 2024Observed: 132.26 ft at 6:45PM Mar 27, 2024Observed: 132.27 ft at 7:00PM Mar 27, 2024Observed: 132.28 ft at 7:15PM Mar 27, 2024Observed: 132.29 ft at 7:30PM Mar 27, 2024Observed: 132.31 ft at 7:45PM Mar 27, 2024Observed: 132.32 ft at 8:00PM Mar 27, 2024Observed: 132.33 ft at 8:15PM Mar 27, 2024Observed: 132.35 ft at 8:30PM Mar 27, 2024Observed: 132.36 ft at 8:45PM Mar 27, 2024Observed: 132.37 ft at 9:00PM Mar 27, 2024Observed: 132.39 ft at 9:15PM Mar 27, 2024Observed: 132.4 ft at 9:30PM Mar 27, 2024Observed: 132.42 ft at 9:45PM Mar 27, 2024Observed: 132.43 ft at 10:00PM Mar 27, 2024Observed: 132.46 ft at 10:15PM Mar 27, 2024Observed: 132.47 ft at 10:30PM Mar 27, 2024Observed: 132.49 ft at 10:45PM Mar 27, 2024Observed: 132.5 ft at 11:00PM Mar 27, 2024Observed: 132.51 ft at 11:15PM Mar 27, 2024Observed: 132.53 ft at 11:30PM Mar 27, 2024Observed: 132.54 ft at 11:45PM Mar 27, 2024Observed: 132.56 ft at 12:00AM Mar 28, 2024Observed: 132.58 ft at 12:15AM Mar 28, 2024Observed: 132.6 ft at 12:30AM Mar 28, 2024Observed: 132.62 ft at 12:45AM Mar 28, 2024Observed: 132.64 ft at 1:00AM Mar 28, 2024Observed: 132.66 ft at 1:15AM Mar 28, 2024Observed: 132.68 ft at 1:30AM Mar 28, 2024Observed: 132.7 ft at 1:45AM Mar 28, 2024Observed: 132.72 ft at 2:00AM Mar 28, 2024Observed: 132.73 ft at 2:15AM Mar 28, 2024Observed: 132.75 ft at 2:30AM Mar 28, 2024Observed: 132.76 ft at 2:45AM Mar 28, 2024Observed: 132.77 ft at 3:00AM Mar 28, 2024Observed: 132.79 ft at 3:15AM Mar 28, 2024Observed: 132.81 ft at 3:30AM Mar 28, 2024Observed: 132.82 ft at 3:45AM Mar 28, 2024Observed: 132.84 ft at 4:00AM Mar 28, 2024Observed: 132.85 ft at 4:15AM Mar 28, 2024Observed: 132.86 ft at 4:30AM Mar 28, 2024Observed: 132.88 ft at 4:45AM Mar 28, 2024Observed: 132.9 ft at 5:00AM Mar 28, 2024Observed: 132.91 ft at 5:15AM Mar 28, 2024Observed: 132.93 ft at 5:30AM Mar 28, 2024Observed: 132.94 ft at 5:45AM Mar 28, 2024Observed: 132.95 ft at 6:00AM Mar 28, 2024Observed: 132.96 ft at 6:15AM Mar 28, 2024Observed: 132.98 ft at 6:30AM Mar 28, 2024Observed: 132.99 ft at 6:45AM Mar 28, 2024Observed: 133 ft at 7:00AM Mar 28, 2024Observed: 133.02 ft at 7:15AM Mar 28, 2024Observed: 133.03 ft at 7:30AM Mar 28, 2024Observed: 133.04 ft at 7:45AM Mar 28, 2024Observed: 133.06 ft at 8:00AM Mar 28, 2024Observed: 133.07 ft at 8:15AM Mar 28, 2024Observed: 133.08 ft at 8:30AM Mar 28, 2024Observed: 133.09 ft at 8:45AM Mar 28, 2024Observed: 133.1 ft at 9:00AM Mar 28, 2024Observed: 133.12 ft at 9:15AM Mar 28, 2024Observed: 133.13 ft at 9:30AM Mar 28, 2024Observed: 133.14 ft at 9:45AM Mar 28, 2024Observed: 133.15 ft at 10:00AM Mar 28, 2024Observed: 133.16 ft at 10:15AM Mar 28, 2024Observed: 133.18 ft at 10:30AM Mar 28, 2024Observed: 133.19 ft at 10:45AM Mar 28, 2024Observed: 133.2 ft at 11:00AM Mar 28, 2024Observed: 133.22 ft at 11:15AM Mar 28, 2024Observed: 133.23 ft at 11:30AM Mar 28, 2024Observed: 133.24 ft at 11:45AM Mar 28, 2024Observed: 133.25 ft at 12:00PM Mar 28, 2024Observed: 133.27 ft at 12:15PM Mar 28, 2024Observed: 133.28 ft at 12:30PM Mar 28, 2024Observed: 133.29 ft at 12:45PM Mar 28, 2024Observed: 133.3 ft at 1:00PM Mar 28, 2024Observed: 133.32 ft at 1:15PM Mar 28, 2024Observed: 133.33 ft at 1:30PM Mar 28, 2024Observed: 133.34 ft at 1:45PM Mar 28, 2024Observed: 133.35 ft at 2:00PM Mar 28, 2024Observed: 133.37 ft at 2:15PM Mar 28, 2024Observed: 133.37 ft at 2:30PM Mar 28, 2024Observed: 133.39 ft at 2:45PM Mar 28, 2024Observed: 133.4 ft at 3:00PM Mar 28, 2024Observed: 133.41 ft at 3:15PM Mar 28, 2024Observed: 133.42 ft at 3:30PM Mar 28, 2024Observed: 133.43 ft at 3:45PM Mar 28, 2024Observed: 133.44 ft at 4:00PM Mar 28, 2024Observed: 133.45 ft at 4:15PM Mar 28, 2024Observed: 133.46 ft at 4:30PM Mar 28, 2024Observed: 133.47 ft at 4:45PM Mar 28, 2024Observed: 133.48 ft at 5:00PM Mar 28, 2024Observed: 133.49 ft at 5:15PM Mar 28, 2024Observed: 133.49 ft at 5:30PM Mar 28, 2024Observed: 133.5 ft at 5:45PM Mar 28, 2024Observed: 133.51 ft at 6:00PM Mar 28, 2024Observed: 133.52 ft at 6:15PM Mar 28, 2024Observed: 133.53 ft at 6:30PM Mar 28, 2024Observed: 133.54 ft at 6:45PM Mar 28, 2024Observed: 133.54 ft at 7:00PM Mar 28, 2024Observed: 133.55 ft at 7:15PM Mar 28, 2024Observed: 133.55 ft at 7:30PM Mar 28, 2024Observed: 133.55 ft at 7:45PM Mar 28, 2024Observed: 133.56 ft at 8:00PM Mar 28, 2024Observed: 133.56 ft at 8:15PM Mar 28, 2024Observed: 133.57 ft at 8:30PM Mar 28, 2024Observed: 133.57 ft at 8:45PM Mar 28, 2024Observed: 133.58 ft at 9:00PM Mar 28, 2024Observed: 133.58 ft at 9:15PM Mar 28, 2024Observed: 133.58 ft at 9:30PM Mar 28, 2024Observed: 133.59 ft at 9:45PM Mar 28, 2024Observed: 133.6 ft at 10:00PM Mar 28, 2024Observed: 133.6 ft at 10:15PM Mar 28, 2024Observed: 133.61 ft at 10:30PM Mar 28, 2024Observed: 133.61 ft at 10:45PM Mar 28, 2024Observed: 133.62 ft at 11:00PM Mar 28, 2024Observed: 133.62 ft at 11:15PM Mar 28, 2024Observed: 133.63 ft at 11:30PM Mar 28, 2024Observed: 133.63 ft at 11:45PM Mar 28, 2024Observed: 133.64 ft at 12:00AM Mar 29, 2024Observed: 133.64 ft at 12:15AM Mar 29, 2024Observed: 133.65 ft at 12:30AM Mar 29, 2024Observed: 133.65 ft at 12:45AM Mar 29, 2024Observed: 133.66 ft at 1:00AM Mar 29, 2024Observed: 133.66 ft at 1:15AM Mar 29, 2024Observed: 133.67 ft at 1:30AM Mar 29, 2024Observed: 133.67 ft at 1:45AM Mar 29, 2024Observed: 133.68 ft at 2:00AM Mar 29, 2024Observed: 133.68 ft at 2:15AM Mar 29, 2024Observed: 133.68 ft at 2:30AM Mar 29, 2024Observed: 133.69 ft at 2:45AM Mar 29, 2024Observed: 133.69 ft at 3:00AM Mar 29, 2024Observed: 133.7 ft at 3:15AM Mar 29, 2024Observed: 133.7 ft at 3:30AM Mar 29, 2024Observed: 133.71 ft at 3:45AM Mar 29, 2024Highest Observation: 133.72 ft at 4:00AM Mar 29, 2024Forecast: 134.34 ft 11:00AM Mar 29, 2024Forecast: 134.54 ft 5:00PM Mar 29, 2024Highest Forecast: 134.59 ft 11:00PM Mar 29, 2024Forecast: 134.53 ft 5:00AM Mar 30, 2024Forecast: 134.32 ft 11:00AM Mar 30, 2024Forecast: 134.05 ft 5:00PM Mar 30, 2024Forecast: 133.87 ft 11:00PM Mar 30, 2024Forecast: 133.74 ft 5:00AM Mar 31, 2024Forecast: 133.64 ft 11:00AM Mar 31, 2024Forecast: 133.54 ft 5:00PM Mar 31, 2024Forecast: 133.43 ft 11:00PM Mar 31, 2024Forecast: 133.32 ft 5:00AM Apr 01, 2024Forecast: 133.22 ft 11:00AM Apr 01, 2024Forecast: 133.12 ft 5:00PM Apr 01, 2024Forecast: 133.02 ft 11:00PM Apr 01, 2024Forecast: 132.94 ft 5:00AM Apr 02, 2024Forecast: 132.86 ft 11:00AM Apr 02, 2024Forecast: 132.78 ft 5:00PM Apr 02, 2024Forecast: 132.7 ft 11:00PM Apr 02, 2024Forecast: 132.62 ft 5:00AM Apr 03, 2024Forecast: 132.55 ft 11:00AM Apr 03, 2024Forecast: 132.48 ft 5:00PM Apr 03, 2024Forecast: 132.41 ft 11:00PM Apr 03, 2024Forecast: 132.35 ft 5:00AM Apr 04, 2024Forecast: 132.29 ft 11:00AM Apr 04, 2024Forecast: 132.23 ft 5:00PM Apr 04, 2024Forecast: 132.18 ft 11:00PM Apr 04, 2024Forecast: 132.13 ft 5:00AM Apr 05, 2024USGS--Water Resources of the United StatesCGMW1(plotting HGIRG) Graph Created (5:05AM Mar 29, 2024)ObservedForecast (issued 2:24PM Mar 28)Latest observed value: 133.72 ft at 4:00 AM PDT 29-Mar-2024. Flood Stage is 141 ft
Printable Image
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 near Grand Mound are issued routinely year-round.

Return to Area Map
Upstream Locations Upstream Gauge Downstream Gauge Downstream Gauge - at Rochester
Flood Categories (in feet)
Major Flood Stage: 144
Moderate Flood Stage: 142.5
Flood Stage: 141
Action Stage: 138.5
Low Stage (in feet): -9999

Historic Crests
(1) 147.26 ft on 12/04/2007
(2) 145.21 ft on 01/07/2022 (P)
(3) 142.88 ft on 01/14/2021 (P)
(4) 142.68 ft on 12/22/2019 (P)
(5) 142.59 ft on 03/02/2022 (P)
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 140.85 ft on 01/28/2024 (P)
(2) 142.28 ft on 12/07/2023 (P)
(3) 142.59 ft on 03/02/2022 (P)
(4) 145.21 ft on 01/07/2022 (P)
(5) 141.41 ft on 11/13/2021 (P)
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

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

Zoom Level:13
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
146 the Chehalis River in Thurston County will cause severe near record flooding, with deep and swift flood waters inundating the Independence Valley. Flooding will occur all along the river including headwaters, tributaries, and other streams within and near the Chehalis River Basin.
144.5 the Chehalis River in Thurston County will cause major flooding, inundating roads and farm lands in Independence Valley. Deep and swift flood waters will cover SR-12 and James, Independence and Moon Roads. Flooding will occur all along the river including headwaters, tributaries, and other streams within and near the Chehalis River Basin.
142.5 the Chehalis River in Thurston County will flood several roads in Independence Valley with swiftly moving water including SR-12 and James, Independence, Moon and Anderson Roads. Flood waters will cut off access to and from Chehalis Reservation and inundate nearby farm lands. Some residential structures may be threatened.
141 the Chehalis River in Thurston County will flood several roads in Independence Valley including James Road, Independence Road, and Moon road. Flood waters will also cover nearby farm lands.
139.5 the Chehalis River in Thurston County will locally spill out of its banks into nearby fields and over a few roads.
About This Location Collapse

Latitude: 46.775934° N, Longitude: 123.035692° W, Horizontal Datum: NAD27

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 141 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 141.00 Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 123.65 ft 137.65 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: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
Ask Questions/Webmaster
Page last modified: 2-Nov-2020 7:27 PM
Disclaimer
Credits
Glossary
Privacy Policy
About Us
Career Opportunities