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Hydrograph River at a Glance Download
Grays River near Rosburg Stage (ft)Flow (cfs)GRRW1(plotting HGIRG) Graph Created (1:49PM May 26, 2022)Flood Stage is 12 ft
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Tabular Data (UTC)
Tabular Data (PDT)
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Datum: Not Available
NOTE: Forecasts for the Grays River near Rosburg are issued as needed during times of high water, but are not routinely available.
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Flood Categories (in feet)
Major Flood Stage: 16
Moderate Flood Stage: 0
Flood Stage: 12
Action Stage: 11
Low Stage (in feet): 0

Historic Crests
(1) 16.50 ft on 12/03/2007
(2) 16.16 ft on 01/07/2022 (P)
(3) 16.15 ft on 01/07/2009
(4) 16.10 ft on 11/17/2015
(5) 16.03 ft on 11/19/2012
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(P): Preliminary values subject to further review.

Recent Crests
(1) 16.16 ft on 01/07/2022 (P)
(2) 15.27 ft on 11/12/2021 (P)
(3) 13.17 ft on 12/18/2018
(4) 13.40 ft on 12/29/2017
(5) 14.00 ft on 11/23/2017
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
Zoom Level:16
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Gauge LocationGauge Map Marker
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
16 expect major flooding of lowland areas and roads in the vicinity of Hwy 4 and Rosburg. Numerous road closures are likely. Some buildings in low areas near the river are threatened with flooding above this level.
14 expect widespread lowland flooding and numerous flooded roads near Rosburg and Hwy 4. This includes the roadway approaches to the Altoona Bridge over the Grays River.
12 expect some flooding of roads along and near the Grays River, including roadway approaches to the Altoona Bridge over the Grays, and portions of Covered Bridge Road, Barr-Durrah Road, and Loop Road near Rosburg and Hwy 4.
11 there may be some water in low areas and on some secondary roads in the vicinity of Hwy 4 and Rosburg.
(1) Dec 2007 flooding at Grays River gage location
(2) Washington Dept of Ecology river gage
About This Location Collapse

Latitude: 46.355000° N, Longitude: 123.581667° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 12 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
(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 Not Available Not Available  
Additional Information Collapse
Data is provided courtesy of the Washington Dept. of Ecology. For more information, click here.
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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
Portland Weather Forecast Office
5241 NE 122nd Avenue
Portland, OR 97230-1089
(503) 261-9246
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Page last modified: 2-Nov-2020 7:27 PM
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