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Hydrograph River at a Glance Download
Grande Ronde River at Troy Stage (ft)Flow (cfs)Observed: 5.56 ft at 3:15PM Mar 28, 2015Observed: 5.52 ft at 3:30PM Mar 28, 2015Observed: 5.51 ft at 3:45PM Mar 28, 2015Observed: 5.54 ft at 4:00PM Mar 28, 2015Observed: 5.56 ft at 4:15PM Mar 28, 2015Observed: 5.55 ft at 4:30PM Mar 28, 2015Observed: 5.56 ft at 4:45PM Mar 28, 2015Observed: 5.58 ft at 5:00PM Mar 28, 2015Observed: 5.56 ft at 5:15PM Mar 28, 2015Observed: 5.55 ft at 5:30PM Mar 28, 2015Observed: 5.57 ft at 5:45PM Mar 28, 2015Observed: 5.58 ft at 6:00PM Mar 28, 2015Observed: 5.58 ft at 6:15PM Mar 28, 2015Observed: 5.55 ft at 6:30PM Mar 28, 2015Observed: 5.56 ft at 6:45PM Mar 28, 2015Observed: 5.57 ft at 7:00PM Mar 28, 2015Observed: 5.58 ft at 7:15PM Mar 28, 2015Observed: 5.55 ft at 7:30PM Mar 28, 2015Observed: 5.58 ft at 7:45PM Mar 28, 2015Observed: 5.59 ft at 8:00PM Mar 28, 2015Observed: 5.56 ft at 8:15PM Mar 28, 2015Highest Observation: 5.6 ft at 8:30PM Mar 28, 2015Observed: 5.55 ft at 8:45PM Mar 28, 2015Observed: 5.59 ft at 9:00PM Mar 28, 2015Observed: 5.56 ft at 9:15PM Mar 28, 2015Observed: 5.59 ft at 9:30PM Mar 28, 2015Observed: 5.55 ft at 9:45PM Mar 28, 2015Observed: 5.59 ft at 10:00PM Mar 28, 2015Observed: 5.56 ft at 10:15PM Mar 28, 2015Observed: 5.53 ft at 10:30PM Mar 28, 2015Observed: 5.57 ft at 10:45PM Mar 28, 2015Observed: 5.56 ft at 11:00PM Mar 28, 2015Observed: 5.57 ft at 11:15PM Mar 28, 2015Observed: 5.56 ft at 11:30PM Mar 28, 2015Observed: 5.54 ft at 11:45PM Mar 28, 2015Observed: 5.56 ft at 12:00AM Mar 29, 2015Observed: 5.56 ft at 12:15AM Mar 29, 2015Observed: 5.53 ft at 12:30AM Mar 29, 2015Observed: 5.56 ft at 12:45AM Mar 29, 2015Observed: 5.55 ft at 1:00AM Mar 29, 2015Observed: 5.56 ft at 1:15AM Mar 29, 2015Observed: 5.55 ft at 1:30AM Mar 29, 2015Observed: 5.53 ft at 1:45AM Mar 29, 2015Observed: 5.53 ft at 2:00AM Mar 29, 2015Observed: 5.56 ft at 2:15AM Mar 29, 2015Observed: 5.53 ft at 2:30AM Mar 29, 2015Observed: 5.53 ft at 2:45AM Mar 29, 2015Observed: 5.53 ft at 3:00AM Mar 29, 2015Observed: 5.54 ft at 3:15AM Mar 29, 2015Observed: 5.55 ft at 3:30AM Mar 29, 2015Observed: 5.51 ft at 3:45AM Mar 29, 2015Observed: 5.5 ft at 4:00AM Mar 29, 2015Observed: 5.54 ft at 4:15AM Mar 29, 2015Observed: 5.54 ft at 4:30AM Mar 29, 2015Observed: 5.53 ft at 4:45AM Mar 29, 2015Observed: 5.51 ft at 5:00AM Mar 29, 2015Observed: 5.49 ft at 5:15AM Mar 29, 2015Observed: 5.5 ft at 5:30AM Mar 29, 2015Observed: 5.54 ft at 5:45AM Mar 29, 2015Observed: 5.53 ft at 6:00AM Mar 29, 2015Observed: 5.52 ft at 6:15AM Mar 29, 2015Observed: 5.54 ft at 6:30AM Mar 29, 2015Observed: 5.53 ft at 6:45AM Mar 29, 2015Observed: 5.5 ft at 7:00AM Mar 29, 2015Observed: 5.5 ft at 7:15AM Mar 29, 2015Observed: 5.51 ft at 7:30AM Mar 29, 2015Observed: 5.53 ft at 7:45AM Mar 29, 2015Observed: 5.51 ft at 8:00AM Mar 29, 2015Observed: 5.53 ft at 8:15AM Mar 29, 2015Observed: 5.5 ft at 8:30AM Mar 29, 2015Observed: 5.51 ft at 8:45AM Mar 29, 2015Observed: 5.5 ft at 9:00AM Mar 29, 2015Observed: 5.5 ft at 9:15AM Mar 29, 2015Observed: 5.52 ft at 9:30AM Mar 29, 2015Observed: 5.54 ft at 9:45AM Mar 29, 2015Observed: 5.51 ft at 10:00AM Mar 29, 2015Observed: 5.53 ft at 10:15AM Mar 29, 2015Observed: 5.53 ft at 10:30AM Mar 29, 2015Observed: 5.53 ft at 10:45AM Mar 29, 2015Observed: 5.53 ft at 11:00AM Mar 29, 2015Observed: 5.53 ft at 11:15AM Mar 29, 2015Observed: 5.51 ft at 11:30AM Mar 29, 2015Observed: 5.52 ft at 11:45AM Mar 29, 2015Observed: 5.54 ft at 12:00PM Mar 29, 2015Observed: 5.53 ft at 12:15PM Mar 29, 2015Observed: 5.52 ft at 12:30PM Mar 29, 2015Observed: 5.48 ft at 12:45PM Mar 29, 2015Observed: 5.47 ft at 1:00PM Mar 29, 2015Observed: 5.51 ft at 1:15PM Mar 29, 2015Observed: 5.51 ft at 1:30PM Mar 29, 2015Observed: 5.52 ft at 1:45PM Mar 29, 2015Observed: 5.52 ft at 2:00PM Mar 29, 2015Observed: 5.49 ft at 2:15PM Mar 29, 2015Observed: 5.53 ft at 2:30PM Mar 29, 2015Observed: 5.51 ft at 2:45PM Mar 29, 2015Observed: 5.5 ft at 3:00PM Mar 29, 2015Observed: 5.5 ft at 3:15PM Mar 29, 2015Observed: 5.53 ft at 3:30PM Mar 29, 2015Observed: 5.49 ft at 3:45PM Mar 29, 2015Observed: 5.52 ft at 4:00PM Mar 29, 2015Observed: 5.51 ft at 4:15PM Mar 29, 2015Observed: 5.5 ft at 4:30PM Mar 29, 2015Observed: 5.53 ft at 4:45PM Mar 29, 2015Observed: 5.51 ft at 5:00PM Mar 29, 2015Observed: 5.49 ft at 5:15PM Mar 29, 2015Observed: 5.51 ft at 5:30PM Mar 29, 2015Observed: 5.48 ft at 5:45PM Mar 29, 2015Observed: 5.51 ft at 6:00PM Mar 29, 2015Observed: 5.5 ft at 6:15PM Mar 29, 2015Observed: 5.5 ft at 6:30PM Mar 29, 2015Observed: 5.49 ft at 6:45PM Mar 29, 2015Observed: 5.52 ft at 7:00PM Mar 29, 2015Observed: 5.49 ft at 7:15PM Mar 29, 2015Observed: 5.52 ft at 7:30PM Mar 29, 2015Observed: 5.49 ft at 7:45PM Mar 29, 2015Observed: 5.49 ft at 8:00PM Mar 29, 2015Observed: 5.5 ft at 8:15PM Mar 29, 2015Observed: 5.47 ft at 8:30PM Mar 29, 2015Observed: 5.48 ft at 8:45PM Mar 29, 2015Observed: 5.51 ft at 9:00PM Mar 29, 2015Observed: 5.49 ft at 9:15PM Mar 29, 2015Observed: 5.51 ft at 9:30PM Mar 29, 2015Observed: 5.48 ft at 9:45PM Mar 29, 2015Observed: 5.49 ft at 10:00PM Mar 29, 2015Observed: 5.49 ft at 10:15PM Mar 29, 2015Observed: 5.48 ft at 10:30PM Mar 29, 2015Observed: 5.5 ft at 10:45PM Mar 29, 2015Observed: 5.48 ft at 11:00PM Mar 29, 2015Observed: 5.5 ft at 11:15PM Mar 29, 2015Observed: 5.48 ft at 11:30PM Mar 29, 2015Observed: 5.48 ft at 11:45PM Mar 29, 2015Observed: 5.48 ft at 12:00AM Mar 30, 2015Observed: 5.46 ft at 12:15AM Mar 30, 2015Observed: 5.47 ft at 12:30AM Mar 30, 2015Observed: 5.49 ft at 12:45AM Mar 30, 2015Observed: 5.52 ft at 1:00AM Mar 30, 2015Observed: 5.47 ft at 1:15AM Mar 30, 2015Observed: 5.51 ft at 1:30AM Mar 30, 2015Observed: 5.47 ft at 1:45AM Mar 30, 2015Observed: 5.46 ft at 2:00AM Mar 30, 2015Observed: 5.48 ft at 2:15AM Mar 30, 2015Observed: 5.49 ft at 2:30AM Mar 30, 2015Observed: 5.5 ft at 2:45AM Mar 30, 2015Observed: 5.47 ft at 3:00AM Mar 30, 2015Observed: 5.45 ft at 3:15AM Mar 30, 2015Observed: 5.49 ft at 3:30AM Mar 30, 2015Observed: 5.48 ft at 3:45AM Mar 30, 2015Observed: 5.48 ft at 4:00AM Mar 30, 2015Observed: 5.48 ft at 4:15AM Mar 30, 2015Observed: 5.48 ft at 4:30AM Mar 30, 2015Observed: 5.49 ft at 4:45AM Mar 30, 2015Observed: 5.45 ft at 5:00AM Mar 30, 2015Observed: 5.47 ft at 5:15AM Mar 30, 2015Observed: 5.48 ft at 5:30AM Mar 30, 2015Observed: 5.47 ft at 5:45AM Mar 30, 2015Observed: 5.46 ft at 6:00AM Mar 30, 2015Observed: 5.47 ft at 6:15AM Mar 30, 2015Observed: 5.45 ft at 6:30AM Mar 30, 2015Observed: 5.49 ft at 6:45AM Mar 30, 2015Observed: 5.45 ft at 7:00AM Mar 30, 2015Observed: 5.49 ft at 7:15AM Mar 30, 2015Observed: 5.48 ft at 7:30AM Mar 30, 2015Observed: 5.47 ft at 7:45AM Mar 30, 2015Observed: 5.48 ft at 8:00AM Mar 30, 2015Observed: 5.46 ft at 8:15AM Mar 30, 2015Observed: 5.47 ft at 8:30AM Mar 30, 2015Observed: 5.47 ft at 8:45AM Mar 30, 2015Observed: 5.47 ft at 9:00AM Mar 30, 2015Observed: 5.45 ft at 9:15AM Mar 30, 2015Observed: 5.46 ft at 9:30AM Mar 30, 2015Observed: 5.45 ft at 9:45AM Mar 30, 2015Observed: 5.45 ft at 10:00AM Mar 30, 2015Observed: 5.46 ft at 10:15AM Mar 30, 2015Observed: 5.46 ft at 10:30AM Mar 30, 2015Observed: 5.47 ft at 10:45AM Mar 30, 2015Observed: 5.45 ft at 11:00AM Mar 30, 2015Observed: 5.47 ft at 11:15AM Mar 30, 2015Observed: 5.44 ft at 11:30AM Mar 30, 2015Observed: 5.47 ft at 11:45AM Mar 30, 2015Observed: 5.47 ft at 12:00PM Mar 30, 2015Observed: 5.48 ft at 12:15PM Mar 30, 2015Observed: 5.46 ft at 12:30PM Mar 30, 2015Observed: 5.47 ft at 12:45PM Mar 30, 2015Observed: 5.46 ft at 1:00PM Mar 30, 2015Observed: 5.45 ft at 1:15PM Mar 30, 2015Observed: 5.47 ft at 1:30PM Mar 30, 2015Observed: 5.45 ft at 1:45PM Mar 30, 2015Observed: 5.47 ft at 2:00PM Mar 30, 2015Observed: 5.45 ft at 2:15PM Mar 30, 2015Observed: 5.48 ft at 2:30PM Mar 30, 2015Observed: 5.47 ft at 2:45PM Mar 30, 2015Observed: 5.46 ft at 3:00PM Mar 30, 2015Observed: 5.47 ft at 3:15PM Mar 30, 2015Observed: 5.47 ft at 3:30PM Mar 30, 2015Observed: 5.48 ft at 3:45PM Mar 30, 2015Observed: 5.46 ft at 4:00PM Mar 30, 2015Observed: 5.45 ft at 4:15PM Mar 30, 2015Observed: 5.48 ft at 4:30PM Mar 30, 2015Observed: 5.46 ft at 4:45PM Mar 30, 2015Observed: 5.45 ft at 5:00PM Mar 30, 2015Observed: 5.45 ft at 5:15PM Mar 30, 2015Observed: 5.45 ft at 5:30PM Mar 30, 2015Observed: 5.48 ft at 5:45PM Mar 30, 2015Observed: 5.45 ft at 6:00PM Mar 30, 2015Observed: 5.43 ft at 6:15PM Mar 30, 2015Observed: 5.44 ft at 6:30PM Mar 30, 2015Observed: 5.45 ft at 6:45PM Mar 30, 2015Observed: 5.43 ft at 7:00PM Mar 30, 2015Observed: 5.45 ft at 7:15PM Mar 30, 2015Observed: 5.45 ft at 7:30PM Mar 30, 2015Observed: 5.43 ft at 7:45PM Mar 30, 2015Observed: 5.44 ft at 8:00PM Mar 30, 2015Observed: 5.46 ft at 8:15PM Mar 30, 2015Observed: 5.44 ft at 8:30PM Mar 30, 2015Observed: 5.45 ft at 8:45PM Mar 30, 2015Observed: 5.45 ft at 9:00PM Mar 30, 2015Observed: 5.45 ft at 9:15PM Mar 30, 2015Observed: 5.45 ft at 9:30PM Mar 30, 2015Observed: 5.44 ft at 9:45PM Mar 30, 2015Observed: 5.43 ft at 10:00PM Mar 30, 2015Observed: 5.43 ft at 10:15PM Mar 30, 2015Observed: 5.43 ft at 10:30PM Mar 30, 2015Observed: 5.42 ft at 10:45PM Mar 30, 2015Observed: 5.43 ft at 11:00PM Mar 30, 2015Observed: 5.43 ft at 11:15PM Mar 30, 2015Observed: 5.43 ft at 11:30PM Mar 30, 2015Observed: 5.43 ft at 11:45PM Mar 30, 2015Observed: 5.43 ft at 12:00AM Mar 31, 2015Observed: 5.42 ft at 12:15AM Mar 31, 2015Observed: 5.41 ft at 12:30AM Mar 31, 2015Observed: 5.43 ft at 12:45AM Mar 31, 2015Observed: 5.43 ft at 1:00AM Mar 31, 2015Observed: 5.43 ft at 1:15AM Mar 31, 2015Observed: 5.45 ft at 1:30AM Mar 31, 2015Observed: 5.43 ft at 1:45AM Mar 31, 2015Observed: 5.41 ft at 2:00AM Mar 31, 2015Observed: 5.45 ft at 2:15AM Mar 31, 2015Observed: 5.41 ft at 2:30AM Mar 31, 2015Observed: 5.42 ft at 2:45AM Mar 31, 2015Observed: 5.43 ft at 3:00AM Mar 31, 2015Observed: 5.44 ft at 3:15AM Mar 31, 2015Observed: 5.43 ft at 3:30AM Mar 31, 2015Observed: 5.43 ft at 3:45AM Mar 31, 2015Observed: 5.41 ft at 4:00AM Mar 31, 2015Observed: 5.43 ft at 4:15AM Mar 31, 2015Observed: 5.43 ft at 4:30AM Mar 31, 2015Observed: 5.44 ft at 4:45AM Mar 31, 2015Observed: 5.4 ft at 5:00AM Mar 31, 2015Observed: 5.42 ft at 5:15AM Mar 31, 2015Observed: 5.43 ft at 5:30AM Mar 31, 2015Observed: 5.43 ft at 5:45AM Mar 31, 2015Observed: 5.41 ft at 6:00AM Mar 31, 2015Observed: 5.43 ft at 6:15AM Mar 31, 2015Observed: 5.44 ft at 6:30AM Mar 31, 2015Observed: 5.42 ft at 6:45AM Mar 31, 2015Observed: 5.43 ft at 7:00AM Mar 31, 2015Observed: 5.43 ft at 7:15AM Mar 31, 2015Observed: 5.43 ft at 7:30AM Mar 31, 2015Observed: 5.42 ft at 7:45AM Mar 31, 2015Observed: 5.44 ft at 8:00AM Mar 31, 2015Observed: 5.42 ft at 8:15AM Mar 31, 2015Observed: 5.41 ft at 8:30AM Mar 31, 2015Observed: 5.41 ft at 8:45AM Mar 31, 2015Observed: 5.42 ft at 9:00AM Mar 31, 2015Observed: 5.42 ft at 9:15AM Mar 31, 2015Observed: 5.44 ft at 9:30AM Mar 31, 2015Observed: 5.43 ft at 9:45AM Mar 31, 2015Observed: 5.41 ft at 10:00AM Mar 31, 2015Observed: 5.42 ft at 10:15AM Mar 31, 2015Observed: 5.39 ft at 10:30AM Mar 31, 2015Observed: 5.43 ft at 10:45AM Mar 31, 2015Observed: 5.43 ft at 11:00AM Mar 31, 2015Observed: 5.4 ft at 11:15AM Mar 31, 2015Observed: 5.42 ft at 11:30AM Mar 31, 2015Observed: 5.44 ft at 11:45AM Mar 31, 2015Observed: 5.42 ft at 12:00PM Mar 31, 2015Observed: 5.42 ft at 12:15PM Mar 31, 2015Observed: 5.44 ft at 12:30PM Mar 31, 2015Observed: 5.41 ft at 12:45PM Mar 31, 2015Observed: 5.43 ft at 1:00PM Mar 31, 2015Observed: 5.43 ft at 1:15PM Mar 31, 2015Observed: 5.42 ft at 1:30PM Mar 31, 2015Observed: 5.42 ft at 1:45PM Mar 31, 2015Observed: 5.42 ft at 2:00PM Mar 31, 2015Highest Forecast: 5.45 ft 5:00PM Mar 31, 2015Forecast: 5.43 ft 11:00PM Mar 31, 2015Forecast: 5.4 ft 5:00AM Apr 01, 2015Forecast: 5.33 ft 11:00AM Apr 01, 2015Forecast: 5.27 ft 5:00PM Apr 01, 2015Forecast: 5.2 ft 11:00PM Apr 01, 2015Forecast: 5.15 ft 5:00AM Apr 02, 2015Forecast: 5.09 ft 11:00AM Apr 02, 2015Forecast: 5.05 ft 5:00PM Apr 02, 2015Forecast: 5.01 ft 11:00PM Apr 02, 2015Forecast: 4.98 ft 5:00AM Apr 03, 2015Forecast: 4.95 ft 11:00AM Apr 03, 2015Forecast: 4.93 ft 5:00PM Apr 03, 2015Forecast: 4.9 ft 11:00PM Apr 03, 2015Forecast: 4.88 ft 5:00AM Apr 04, 2015Forecast: 4.86 ft 11:00AM Apr 04, 2015Forecast: 4.84 ft 5:00PM Apr 04, 2015Forecast: 4.82 ft 11:00PM Apr 04, 2015Forecast: 4.81 ft 5:00AM Apr 05, 2015Forecast: 4.79 ft 11:00AM Apr 05, 2015Forecast: 4.77 ft 5:00PM Apr 05, 2015Forecast: 4.76 ft 11:00PM Apr 05, 2015Forecast: 4.74 ft 5:00AM Apr 06, 2015Forecast: 4.73 ft 11:00AM Apr 06, 2015Forecast: 4.72 ft 5:00PM Apr 06, 2015Forecast: 4.7 ft 11:00PM Apr 06, 2015Forecast: 4.69 ft 5:00AM Apr 07, 2015Forecast: 4.67 ft 11:00AM Apr 07, 2015USGS--Water Resources of the United StatesTRYO3(plotting HGIRG) Graph Created (3:02PM Mar 31, 2015)ObservedForecast (issued 9:26AM Mar 31)Latest observed value: 5.42 ft at 2:00 PM PDT 31-Mar-2015. Flood Stage is 10 ft
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About this graph
Tabular Data (UTC)
Tabular Data (PDT)
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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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: 12-Feb-2015 9:31 PM
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