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Hydrograph River at a Glance Download
Grande Ronde River at Troy Stage (ft)Flow (cfs)Observed: 4.19 ft at 5:45PM Feb 10, 2016Observed: 4.19 ft at 6:00PM Feb 10, 2016Observed: 4.19 ft at 6:15PM Feb 10, 2016Observed: 4.2 ft at 6:30PM Feb 10, 2016Observed: 4.2 ft at 6:45PM Feb 10, 2016Observed: 4.2 ft at 7:00PM Feb 10, 2016Observed: 4.2 ft at 7:15PM Feb 10, 2016Observed: 4.2 ft at 7:30PM Feb 10, 2016Observed: 4.2 ft at 7:45PM Feb 10, 2016Observed: 4.2 ft at 8:00PM Feb 10, 2016Observed: 4.21 ft at 8:15PM Feb 10, 2016Observed: 4.21 ft at 8:30PM Feb 10, 2016Observed: 4.21 ft at 8:45PM Feb 10, 2016Observed: 4.21 ft at 9:00PM Feb 10, 2016Observed: 4.21 ft at 9:15PM Feb 10, 2016Observed: 4.21 ft at 9:30PM Feb 10, 2016Observed: 4.2 ft at 9:45PM Feb 10, 2016Observed: 4.21 ft at 10:00PM Feb 10, 2016Observed: 4.21 ft at 10:15PM Feb 10, 2016Observed: 4.22 ft at 10:30PM Feb 10, 2016Observed: 4.22 ft at 10:45PM Feb 10, 2016Observed: 4.22 ft at 11:00PM Feb 10, 2016Observed: 4.21 ft at 11:15PM Feb 10, 2016Observed: 4.22 ft at 11:30PM Feb 10, 2016Observed: 4.21 ft at 11:45PM Feb 10, 2016Observed: 4.22 ft at 12:00AM Feb 11, 2016Observed: 4.22 ft at 12:15AM Feb 11, 2016Observed: 4.22 ft at 12:30AM Feb 11, 2016Observed: 4.23 ft at 12:45AM Feb 11, 2016Observed: 4.23 ft at 1:00AM Feb 11, 2016Observed: 4.23 ft at 1:15AM Feb 11, 2016Observed: 4.23 ft at 1:30AM Feb 11, 2016Observed: 4.23 ft at 1:45AM Feb 11, 2016Observed: 4.24 ft at 2:00AM Feb 11, 2016Observed: 4.23 ft at 2:15AM Feb 11, 2016Observed: 4.23 ft at 2:30AM Feb 11, 2016Observed: 4.23 ft at 2:45AM Feb 11, 2016Observed: 4.23 ft at 3:00AM Feb 11, 2016Observed: 4.24 ft at 3:15AM Feb 11, 2016Observed: 4.24 ft at 3:30AM Feb 11, 2016Observed: 4.24 ft at 3:45AM Feb 11, 2016Observed: 4.24 ft at 4:00AM Feb 11, 2016Observed: 4.25 ft at 4:15AM Feb 11, 2016Observed: 4.24 ft at 4:30AM Feb 11, 2016Observed: 4.24 ft at 4:45AM Feb 11, 2016Observed: 4.24 ft at 5:00AM Feb 11, 2016Observed: 4.24 ft at 5:15AM Feb 11, 2016Observed: 4.25 ft at 5:30AM Feb 11, 2016Observed: 4.24 ft at 5:45AM Feb 11, 2016Observed: 4.24 ft at 6:00AM Feb 11, 2016Observed: 4.25 ft at 6:15AM Feb 11, 2016Observed: 4.24 ft at 6:30AM Feb 11, 2016Observed: 4.25 ft at 6:45AM Feb 11, 2016Observed: 4.25 ft at 7:00AM Feb 11, 2016Observed: 4.25 ft at 7:15AM Feb 11, 2016Observed: 4.25 ft at 7:30AM Feb 11, 2016Observed: 4.25 ft at 7:45AM Feb 11, 2016Observed: 4.25 ft at 8:00AM Feb 11, 2016Observed: 4.26 ft at 8:15AM Feb 11, 2016Observed: 4.26 ft at 8:30AM Feb 11, 2016Observed: 4.26 ft at 8:45AM Feb 11, 2016Observed: 4.25 ft at 9:00AM Feb 11, 2016Observed: 4.26 ft at 9:15AM Feb 11, 2016Observed: 4.26 ft at 9:30AM Feb 11, 2016Observed: 4.25 ft at 9:45AM Feb 11, 2016Observed: 4.26 ft at 10:00AM Feb 11, 2016Observed: 4.26 ft at 10:15AM Feb 11, 2016Observed: 4.26 ft at 10:30AM Feb 11, 2016Observed: 4.26 ft at 10:45AM Feb 11, 2016Observed: 4.26 ft at 11:00AM Feb 11, 2016Observed: 4.26 ft at 11:15AM Feb 11, 2016Observed: 4.26 ft at 11:30AM Feb 11, 2016Observed: 4.25 ft at 11:45AM Feb 11, 2016Observed: 4.27 ft at 12:00PM Feb 11, 2016Observed: 4.27 ft at 12:15PM Feb 11, 2016Observed: 4.26 ft at 12:30PM Feb 11, 2016Observed: 4.26 ft at 12:45PM Feb 11, 2016Observed: 4.24 ft at 1:00PM Feb 11, 2016Observed: 4.27 ft at 1:15PM Feb 11, 2016Observed: 4.27 ft at 1:30PM Feb 11, 2016Observed: 4.27 ft at 1:45PM Feb 11, 2016Observed: 4.26 ft at 2:00PM Feb 11, 2016Observed: 4.26 ft at 2:15PM Feb 11, 2016Observed: 4.26 ft at 2:30PM Feb 11, 2016Observed: 4.27 ft at 2:45PM Feb 11, 2016Observed: 4.26 ft at 3:00PM Feb 11, 2016Observed: 4.27 ft at 3:15PM Feb 11, 2016Observed: 4.27 ft at 3:30PM Feb 11, 2016Observed: 4.27 ft at 3:45PM Feb 11, 2016Observed: 4.28 ft at 4:00PM Feb 11, 2016Observed: 4.28 ft at 4:15PM Feb 11, 2016Observed: 4.28 ft at 4:30PM Feb 11, 2016Observed: 4.27 ft at 4:45PM Feb 11, 2016Observed: 4.27 ft at 5:00PM Feb 11, 2016Observed: 4.27 ft at 5:15PM Feb 11, 2016Observed: 4.28 ft at 5:30PM Feb 11, 2016Observed: 4.28 ft at 5:45PM Feb 11, 2016Observed: 4.27 ft at 6:00PM Feb 11, 2016Observed: 4.28 ft at 6:15PM Feb 11, 2016Observed: 4.27 ft at 6:30PM Feb 11, 2016Observed: 4.28 ft at 6:45PM Feb 11, 2016Observed: 4.28 ft at 7:00PM Feb 11, 2016Observed: 4.29 ft at 7:15PM Feb 11, 2016Observed: 4.28 ft at 7:30PM Feb 11, 2016Observed: 4.29 ft at 7:45PM Feb 11, 2016Observed: 4.29 ft at 8:00PM Feb 11, 2016Observed: 4.28 ft at 8:15PM Feb 11, 2016Observed: 4.29 ft at 8:30PM Feb 11, 2016Observed: 4.29 ft at 8:45PM Feb 11, 2016Observed: 4.29 ft at 9:00PM Feb 11, 2016Observed: 4.3 ft at 9:15PM Feb 11, 2016Observed: 4.3 ft at 9:30PM Feb 11, 2016Observed: 4.3 ft at 9:45PM Feb 11, 2016Observed: 4.3 ft at 10:00PM Feb 11, 2016Observed: 4.3 ft at 10:15PM Feb 11, 2016Observed: 4.3 ft at 10:30PM Feb 11, 2016Observed: 4.31 ft at 10:45PM Feb 11, 2016Observed: 4.31 ft at 11:00PM Feb 11, 2016Observed: 4.31 ft at 11:15PM Feb 11, 2016Observed: 4.31 ft at 11:30PM Feb 11, 2016Observed: 4.31 ft at 11:45PM Feb 11, 2016Observed: 4.31 ft at 12:00AM Feb 12, 2016Observed: 4.31 ft at 12:15AM Feb 12, 2016Observed: 4.31 ft at 12:30AM Feb 12, 2016Observed: 4.32 ft at 12:45AM Feb 12, 2016Observed: 4.31 ft at 1:00AM Feb 12, 2016Observed: 4.31 ft at 1:15AM Feb 12, 2016Observed: 4.31 ft at 1:30AM Feb 12, 2016Observed: 4.32 ft at 1:45AM Feb 12, 2016Observed: 4.32 ft at 2:00AM Feb 12, 2016Observed: 4.32 ft at 2:15AM Feb 12, 2016Observed: 4.33 ft at 2:30AM Feb 12, 2016Observed: 4.32 ft at 2:45AM Feb 12, 2016Observed: 4.33 ft at 3:00AM Feb 12, 2016Observed: 4.33 ft at 3:15AM Feb 12, 2016Observed: 4.33 ft at 3:30AM Feb 12, 2016Observed: 4.33 ft at 3:45AM Feb 12, 2016Observed: 4.33 ft at 4:00AM Feb 12, 2016Observed: 4.33 ft at 4:15AM Feb 12, 2016Observed: 4.34 ft at 4:30AM Feb 12, 2016Observed: 4.35 ft at 4:45AM Feb 12, 2016Observed: 4.35 ft at 5:00AM Feb 12, 2016Observed: 4.34 ft at 5:15AM Feb 12, 2016Observed: 4.35 ft at 5:30AM Feb 12, 2016Observed: 4.36 ft at 5:45AM Feb 12, 2016Observed: 4.36 ft at 6:00AM Feb 12, 2016Observed: 4.35 ft at 6:15AM Feb 12, 2016Observed: 4.36 ft at 6:30AM Feb 12, 2016Observed: 4.37 ft at 6:45AM Feb 12, 2016Observed: 4.37 ft at 7:00AM Feb 12, 2016Observed: 4.36 ft at 7:15AM Feb 12, 2016Observed: 4.37 ft at 7:30AM Feb 12, 2016Observed: 4.37 ft at 7:45AM Feb 12, 2016Observed: 4.37 ft at 8:00AM Feb 12, 2016Observed: 4.38 ft at 8:15AM Feb 12, 2016Observed: 4.38 ft at 8:30AM Feb 12, 2016Observed: 4.39 ft at 8:45AM Feb 12, 2016Observed: 4.39 ft at 9:00AM Feb 12, 2016Observed: 4.39 ft at 9:15AM Feb 12, 2016Observed: 4.39 ft at 9:30AM Feb 12, 2016Observed: 4.38 ft at 9:45AM Feb 12, 2016Observed: 4.4 ft at 10:00AM Feb 12, 2016Observed: 4.4 ft at 10:15AM Feb 12, 2016Observed: 4.4 ft at 10:30AM Feb 12, 2016Observed: 4.41 ft at 10:45AM Feb 12, 2016Observed: 4.41 ft at 11:00AM Feb 12, 2016Observed: 4.41 ft at 11:15AM Feb 12, 2016Observed: 4.41 ft at 11:30AM Feb 12, 2016Observed: 4.42 ft at 11:45AM Feb 12, 2016Observed: 4.41 ft at 12:00PM Feb 12, 2016Observed: 4.41 ft at 12:15PM Feb 12, 2016Observed: 4.42 ft at 12:30PM Feb 12, 2016Observed: 4.42 ft at 12:45PM Feb 12, 2016Observed: 4.42 ft at 1:00PM Feb 12, 2016Observed: 4.42 ft at 1:15PM Feb 12, 2016Observed: 4.42 ft at 1:30PM Feb 12, 2016Observed: 4.43 ft at 1:45PM Feb 12, 2016Observed: 4.43 ft at 2:00PM Feb 12, 2016Observed: 4.43 ft at 2:15PM Feb 12, 2016Observed: 4.43 ft at 2:30PM Feb 12, 2016Observed: 4.43 ft at 2:45PM Feb 12, 2016Observed: 4.43 ft at 3:00PM Feb 12, 2016Observed: 4.44 ft at 3:15PM Feb 12, 2016Observed: 4.44 ft at 3:30PM Feb 12, 2016Observed: 4.44 ft at 3:45PM Feb 12, 2016Observed: 4.44 ft at 4:00PM Feb 12, 2016Observed: 4.44 ft at 4:15PM Feb 12, 2016Observed: 4.45 ft at 4:30PM Feb 12, 2016Observed: 4.44 ft at 4:45PM Feb 12, 2016Observed: 4.45 ft at 5:00PM Feb 12, 2016Observed: 4.45 ft at 5:15PM Feb 12, 2016Observed: 4.45 ft at 5:30PM Feb 12, 2016Observed: 4.46 ft at 5:45PM Feb 12, 2016Observed: 4.45 ft at 6:00PM Feb 12, 2016Observed: 4.46 ft at 6:15PM Feb 12, 2016Observed: 4.46 ft at 6:30PM Feb 12, 2016Observed: 4.46 ft at 6:45PM Feb 12, 2016Observed: 4.46 ft at 7:00PM Feb 12, 2016Observed: 4.46 ft at 7:15PM Feb 12, 2016Observed: 4.46 ft at 7:30PM Feb 12, 2016Observed: 4.46 ft at 7:45PM Feb 12, 2016Observed: 4.47 ft at 8:00PM Feb 12, 2016Observed: 4.48 ft at 8:15PM Feb 12, 2016Observed: 4.48 ft at 8:30PM Feb 12, 2016Observed: 4.47 ft at 8:45PM Feb 12, 2016Observed: 4.47 ft at 9:00PM Feb 12, 2016Observed: 4.48 ft at 9:15PM Feb 12, 2016Observed: 4.49 ft at 9:30PM Feb 12, 2016Observed: 4.49 ft at 9:45PM Feb 12, 2016Observed: 4.49 ft at 10:00PM Feb 12, 2016Observed: 4.49 ft at 10:15PM Feb 12, 2016Observed: 4.5 ft at 10:30PM Feb 12, 2016Observed: 4.5 ft at 10:45PM Feb 12, 2016Observed: 4.49 ft at 11:00PM Feb 12, 2016Observed: 4.5 ft at 11:15PM Feb 12, 2016Observed: 4.5 ft at 11:30PM Feb 12, 2016Observed: 4.51 ft at 11:45PM Feb 12, 2016Observed: 4.51 ft at 12:00AM Feb 13, 2016Observed: 4.52 ft at 12:15AM Feb 13, 2016Observed: 4.52 ft at 12:30AM Feb 13, 2016Observed: 4.52 ft at 12:45AM Feb 13, 2016Observed: 4.52 ft at 1:00AM Feb 13, 2016Observed: 4.53 ft at 1:15AM Feb 13, 2016Observed: 4.53 ft at 1:30AM Feb 13, 2016Observed: 4.53 ft at 1:45AM Feb 13, 2016Observed: 4.53 ft at 2:00AM Feb 13, 2016Observed: 4.53 ft at 2:15AM Feb 13, 2016Observed: 4.54 ft at 2:30AM Feb 13, 2016Observed: 4.54 ft at 2:45AM Feb 13, 2016Observed: 4.55 ft at 3:00AM Feb 13, 2016Observed: 4.55 ft at 3:15AM Feb 13, 2016Observed: 4.55 ft at 3:30AM Feb 13, 2016Observed: 4.56 ft at 3:45AM Feb 13, 2016Observed: 4.57 ft at 4:00AM Feb 13, 2016Observed: 4.57 ft at 4:15AM Feb 13, 2016Observed: 4.57 ft at 4:30AM Feb 13, 2016Observed: 4.57 ft at 4:45AM Feb 13, 2016Observed: 4.58 ft at 5:00AM Feb 13, 2016Observed: 4.59 ft at 5:15AM Feb 13, 2016Observed: 4.59 ft at 5:30AM Feb 13, 2016Observed: 4.59 ft at 5:45AM Feb 13, 2016Observed: 4.58 ft at 6:00AM Feb 13, 2016Observed: 4.59 ft at 6:15AM Feb 13, 2016Observed: 4.6 ft at 6:30AM Feb 13, 2016Observed: 4.6 ft at 6:45AM Feb 13, 2016Observed: 4.6 ft at 7:00AM Feb 13, 2016Observed: 4.61 ft at 7:15AM Feb 13, 2016Observed: 4.61 ft at 7:30AM Feb 13, 2016Observed: 4.61 ft at 7:45AM Feb 13, 2016Observed: 4.61 ft at 8:00AM Feb 13, 2016Observed: 4.62 ft at 8:15AM Feb 13, 2016Observed: 4.63 ft at 8:30AM Feb 13, 2016Observed: 4.62 ft at 8:45AM Feb 13, 2016Observed: 4.63 ft at 9:00AM Feb 13, 2016Observed: 4.63 ft at 9:15AM Feb 13, 2016Observed: 4.64 ft at 9:30AM Feb 13, 2016Observed: 4.65 ft at 9:45AM Feb 13, 2016Observed: 4.65 ft at 10:00AM Feb 13, 2016Observed: 4.65 ft at 10:15AM Feb 13, 2016Observed: 4.65 ft at 10:30AM Feb 13, 2016Observed: 4.67 ft at 10:45AM Feb 13, 2016Observed: 4.66 ft at 11:00AM Feb 13, 2016Observed: 4.67 ft at 11:15AM Feb 13, 2016Observed: 4.67 ft at 11:30AM Feb 13, 2016Observed: 4.67 ft at 11:45AM Feb 13, 2016Observed: 4.68 ft at 12:00PM Feb 13, 2016Observed: 4.68 ft at 12:15PM Feb 13, 2016Observed: 4.69 ft at 12:30PM Feb 13, 2016Observed: 4.69 ft at 12:45PM Feb 13, 2016Observed: 4.68 ft at 1:00PM Feb 13, 2016Observed: 4.7 ft at 1:15PM Feb 13, 2016Observed: 4.69 ft at 1:30PM Feb 13, 2016Observed: 4.7 ft at 1:45PM Feb 13, 2016Observed: 4.71 ft at 2:00PM Feb 13, 2016Observed: 4.71 ft at 2:15PM Feb 13, 2016Observed: 4.72 ft at 2:30PM Feb 13, 2016Observed: 4.72 ft at 2:45PM Feb 13, 2016Observed: 4.72 ft at 3:00PM Feb 13, 2016Observed: 4.72 ft at 3:15PM Feb 13, 2016Observed: 4.72 ft at 3:30PM Feb 13, 2016Observed: 4.73 ft at 3:45PM Feb 13, 2016Observed: 4.74 ft at 4:00PM Feb 13, 2016Highest Observation: 4.75 ft at 4:15PM Feb 13, 2016Observed: 4.74 ft at 4:30PM Feb 13, 2016Observed: 4.74 ft at 4:45PM Feb 13, 2016Highest Observation: 4.75 ft at 5:00PM Feb 13, 2016Forecast: 4.74 ft 10:00PM Feb 13, 2016Forecast: 4.89 ft 4:00AM Feb 14, 2016Forecast: 5.2 ft 10:00AM Feb 14, 2016Forecast: 5.66 ft 4:00PM Feb 14, 2016Forecast: 6.24 ft 10:00PM Feb 14, 2016Forecast: 6.86 ft 4:00AM Feb 15, 2016Forecast: 7.34 ft 10:00AM Feb 15, 2016Forecast: 7.59 ft 4:00PM Feb 15, 2016Highest Forecast: 7.66 ft 10:00PM Feb 15, 2016Forecast: 7.62 ft 4:00AM Feb 16, 2016Forecast: 7.51 ft 10:00AM Feb 16, 2016Forecast: 7.36 ft 4:00PM Feb 16, 2016Forecast: 7.21 ft 10:00PM Feb 16, 2016Forecast: 7.12 ft 4:00AM Feb 17, 2016Forecast: 7.06 ft 10:00AM Feb 17, 2016Forecast: 7.01 ft 4:00PM Feb 17, 2016Forecast: 6.97 ft 10:00PM Feb 17, 2016Forecast: 6.96 ft 4:00AM Feb 18, 2016Forecast: 7.02 ft 10:00AM Feb 18, 2016Forecast: 7.12 ft 4:00PM Feb 18, 2016Forecast: 7.2 ft 10:00PM Feb 18, 2016Forecast: 7.22 ft 4:00AM Feb 19, 2016Forecast: 7.18 ft 10:00AM Feb 19, 2016Forecast: 7.08 ft 4:00PM Feb 19, 2016Forecast: 6.97 ft 10:00PM Feb 19, 2016Forecast: 6.86 ft 4:00AM Feb 20, 2016Forecast: 6.77 ft 10:00AM Feb 20, 2016Forecast: 6.68 ft 4:00PM Feb 20, 2016USGS--Water Resources of the United StatesTRYO3(plotting HGIRG) Graph Created (5:33PM Feb 13, 2016)ObservedForecast (issued 1:44PM Feb 13)Latest observed value: 4.75 ft at 5:00 PM PST 13-Feb-2016. Flood Stage is 10 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (PST)
XML Data
RSS Files
Datum: Not Available
Metadata
NOTE: Forecasts for the Grande Ronde River at Troy are issued routinely year-round.
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Upstream Gauge - near Perry Upstream Gauge
Flood Categories (in feet)
Major Flood Stage: 12
Moderate Flood Stage: 11
Flood Stage: 10
Action Stage: 8
Low Stage (in feet): 0

Historic Crests
(1) 13.76 ft on 02/09/1996
(2) 12.65 ft on 01/01/1997
(3) 11.85 ft on 03/10/2014
(4) 11.25 ft on 12/23/1964
(5) 10.83 ft on 06/05/2010
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 11.85 ft on 03/10/2014
(2) 10.30 ft on 01/17/2011
(3) 10.83 ft on 06/05/2010
(4) 10.44 ft on 04/14/2002
(5) 9.51 ft on 05/26/1998
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
(1) -0.99 ft on 11/25/1993
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
16 Flooding along the left bank into the town of Troy.
11 Extensive flooding of fields around Troy are possible, but no residences are threatened.
10 Minor flooding of fields adjacent to the river from Elgin through Troy and downstream to the confluence of the Snake River.
9 Minor flooding in lowland fields from Elgin downstream through Troy and through southeast Washington to the Snake River.
About This Location Collapse

Latitude: 45.946389° N, Longitude: 117.448333° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 10 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 1585.98 ft 1595.98 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:

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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
Pendleton Weather Forecast Office
2001 NW 56th Drive
Pendleton, OR 97801
(541) 276-7832
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Page last modified: 13-Aug-2015 2:13 AM
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