Grande Ronde River at Troy, OR

Eastern Oregon · USGS gauge 13333000 · Updated Oct 24, 2:37 PM PDT · USGS data, provisional

Fishable/Floatable719 cfs● steady (+7% in 24 h)

Reading time: Oct 24, 2:00 PM PDT · Provisional data

Flow is in a typical range for the date. Rivers are generally easiest to fish and float when they are near their normal flow, but this status says nothing about water clarity, hatches, hazards such as wood in the river, or dam releases.

Vs. normal for this date
28th percentile
Typical range (25th–75th)
700–950 cfs
Median for this date
814 cfs
7-day low / high
568 / 727 cfs

Plain-language explanation

Grande Ronde River at Troy is flowing at 719 cubic feet per second (cfs) as of Oct 24, 2:00 PM PDT. That is in the normal range for this time of year: lower than about 72% of the daily flows this gauge has recorded for this date (give or take 7 days) over 83 years of record (1944–2026).

The middle half of those historical flows runs from 700 to 950 cfs, with a median of 814 cfs; the lowest 10% of days are at or below 603 cfs and the highest 10% at or above 1,184 cfs.

Over the last 24 hours the flow has been steady (+7.5%). In the last 7 days it ranged from 568 to 727 cfs.

Why this status: Flow is within the range this gauge normally sees at this time of year (or the deviation is too small in absolute terms to matter).

Quick answers

Is the Grande Ronde River at Troy fishable today?

Flowcast's status for the Grande Ronde River at Troy is “Fishable/Floatable”: flow is 719 cfs, within the range this gauge normally sees at this time of year, at the 28th percentile for this date (as of Oct 24, 2:00 PM PDT). That describes flow only. It says nothing about water clarity, temperature, fish activity, access or fishing regulations.

What is the current flow of the Grande Ronde River at Troy?

719 cubic feet per second at USGS gauge 13333000 as of Oct 24, 2:00 PM PDT, provisional data.

Is the Grande Ronde River at Troy too high or too low right now?

Neither: it is inside the typical range for the date (700 to 950 cfs).

Is the Grande Ronde River at Troy rising or falling?

Over the last 24 hours the flow has been steady (+7.5%).

What is a normal flow for the Grande Ronde River at Troy in October?

For this date (give or take 7 days) the median is 814 cfs and the middle half of days runs 700 to 950 cfs, over 83 years of USGS record.

7-day trend

typical range for this date (25th-75th pct)544596648699751Sun 10/18Mon 10/19Tue 10/20Wed 10/21Thu 10/22Fri 10/23Sat 10/24

Hourly flow in cfs, Pacific time. The shaded band is the typical range (25th–75th percentile) for this date, shown when it falls within the chart.

Day (Pacific)Mean cfsPercentileStatus that day
Sun Oct 1859111thFishable/Floatable
Mon Oct 195889thToo low
Tue Oct 205889thToo low
Wed Oct 215848thToo low
Thu Oct 225868thToo low
Fri Oct 2366821stFishable/Floatable
Sat Oct 24 (so far)70726thFishable/Floatable

Seasonal context

1002005001,0002,0005,00010,00020,00050,000100,000JanFebMarAprMayJunJulAugSepOctNovDec

Shaded band: 10th–90th percentile of daily flows through the year; dashed line: median. Log scale. Dot: today's flow. Based on 83 years of USGS daily data (1944–2026).

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Official resources

Links go to the agencies' own websites and were checked as working. Flowcast does not summarize fishing or boating rules: regulations and closures change, and the agency pages are the authority.

About this gauge

USGS site
USGS-13333000
USGS name
Grande Ronde River At Troy, Or
Drainage area
3,275 sq mi
Location
45.9457, -117.4510
Record in this analysis
1944–2026

Typical uses

steelheadrafting

Notes: Largely free-flowing in this stretch; levels follow snowmelt and rain. (Hand-written general note, not from USGS data.)

Data from the U.S. Geological Survey (USGS). Readings are provisional and subject to revision. Flowcast statuses are automated comparisons with each gauge's own history, not safety ratings or fishing reports. Check local conditions, weather, regulations and closures before you go. Rivers can change quickly.

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