Rivermatics

USGS Streamgage 09272400

Green River at Ouray, Utah

Green River at Ouray, Utah is USGS streamgage 09272400 in Utah, monitoring river discharge in hydrologic subbasin 14040106. It sits on the Green River, alongside 8 other gauges Rivermatics tracks on the same river. It drains a watershed of about 31,060 square miles. Discharge records at this site go back to 2009. Typical flow runs near 2,551.9 cfs in July and 4,157 cfs in April, with the higher of the two arriving in April. Rivermatics issues a daily machine-learned flow outlook for this gauge, reaching 14 days ahead.

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Gauge details

State
Utah
Drainage area
31,060 sq mi
Gauge elevation
4,668 ft
Subbasin (HUC-8)
14040106
Coordinates
40.0848, -109.67584
USGS site number
09272400
Records begin
2009-05-27 (17 years)
Rivermatics forecast
14-day flow outlook

14-day flow forecast

Based on observations through for Green River at Ouray, Utah. Each day carries a median estimate and the band the model expects the flow to fall within — not a single number to plan against. Forecasts are re-issued daily; see the live screen for the current outlook.

Forecast daily mean discharge in cubic feet per second, by date
Date Low p10 Expected p50 High p90 Range
2,014 2,050 2,085
1,992 2,044 2,092
1,978 2,041 2,112
1,970 2,047 2,153
1,964 2,055 2,196
1,966 2,078 2,290
1,980 2,119 2,422
1,960 2,114 2,418
1,945 2,103 2,403
1,925 2,085 2,374
1,903 2,064 2,340
1,884 2,050 2,329
1,851 2,026 2,315
1,832 2,009 2,290

All values in cubic feet per second (cfs). Estimates only — do not use them for navigation or for any safety, rescue, or emergency decision.

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 17 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.

Historical monthly discharge percentiles in cubic feet per second
Month Low p10 Typical p50 High p90 Range
January 1,215.8 2,287.4 3,200
February 1,341.1 2,288.6 3,431.1
March 1,509 2,098.1 4,917.1
April 2,034.7 4,157 9,863
May 4,637.1 9,264.8 16,906.5
June 3,069 9,518 19,756.7
July 1,371.3 2,551.9 8,469.7
August 1,309 1,979 3,093.9
September 1,487 1,973 2,997
October 1,220.3 1,966.5 2,919.7
November 1,294 1,967 2,883
December 1,185.2 2,213.2 2,940.6

All values in cubic feet per second (cfs).

Common questions

When does Green River at Ouray, Utah normally run highest?
June, on the long-term record. The median daily flow that month is about 9,518 cfs, against 1,966.5 cfs in October, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for Green River at Ouray, Utah?
It depends on the month. In January, half of days historically fall near 2,287.4 cfs, with the middle 80% of days between 1,215.8 and 3,200 cfs. The month-by-month table on this page gives the full range.
How long has Green River at Ouray, Utah been measured?
Discharge records at USGS site 09272400 begin in 2009, about 17 years, covering roughly 6,280 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Is there a flow forecast for Green River at Ouray, Utah?
Yes. Rivermatics trains a machine-learned model — a temporal-fusion transformer — on this basin's observed flows, weather, and snowpack, and issues a daily flow outlook reaching 14 days ahead: a median estimate inside a confidence band, not a single number to bet on. Every forecast is scored against days the model never trained on, and that track record is published on the live gauge screen. Open live conditions to see the current outlook.
Where is Green River at Ouray, Utah?
The gauge sits at 40.0848, -109.67584, in Utah, in hydrologic subbasin 14040106, at an elevation of about 4,668 feet, draining roughly 31,060 square miles.
Can I use Green River at Ouray, Utah data for flood or safety decisions?
No. Rivermatics provides estimates, not guarantees, and the readings and forecasts here may be delayed, inaccurate, or wrong. Do not use them for navigation or for any safety, rescue, or emergency decision. Check the National Weather Service and USGS directly, and use your own judgment.

Upstream and downstream on the Green River

Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Green River in full.

Other gauges in this subbasin