Rivermatics

USGS Streamgage 09237450

Yampa River above Stagecoach Reservoir, CO

Yampa River above Stagecoach Reservoir, CO is USGS streamgage 09237450 in Colorado, monitoring river discharge in hydrologic subbasin 14050001. It sits on the Yampa River, alongside 7 other gauges Rivermatics tracks on the same river. It drains a watershed of about 206 square miles. Discharge records at this site go back to 1988. Typical flow runs near 84.3 cfs in July and 92.2 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.

View live conditions & forecast →

Gauge details

State
Colorado
Drainage area
206 sq mi
Gauge elevation
7,239 ft
Subbasin (HUC-8)
14050001
Coordinates
40.26426, -106.89177
USGS site number
09237450
Records begin
1988-10-01 (38 years)
Rivermatics forecast
14-day flow outlook

14-day flow forecast

Based on observations through for Yampa River above Stagecoach Reservoir, CO. 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
10.1 11.3 12.5
8.9 10.7 12.7
8 10.5 13.6
7.8 10.9 15.9
7.5 11.1 16.5
6.9 11.4 18.9
7.7 13 23.4
8.4 14.2 24.1
7.9 13.4 22.2
7.3 12.9 21.2
6.9 12.4 20.4
6.3 11.7 19.3
6 11.5 19.1
5.6 11.2 19

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 38 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 22 35.6 53.4
February 23.4 35.8 53.9
March 30.1 53.1 98.6
April 43.1 92.2 193.9
May 25 98.2 255
June 21.7 81.3 206.1
July 44.1 84.3 159.6
August 35.8 65.1 109.9
September 21.5 40.1 80.5
October 27.7 41 79.3
November 30.5 43.8 71.8
December 22.4 36.6 59.2

All values in cubic feet per second (cfs).

Common questions

When does Yampa River above Stagecoach Reservoir, CO normally run highest?
May, on the long-term record. The median daily flow that month is about 98.2 cfs, against 35.6 cfs in January, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for Yampa River above Stagecoach Reservoir, CO?
It depends on the month. In January, half of days historically fall near 35.6 cfs, with the middle 80% of days between 22 and 53.4 cfs. The month-by-month table on this page gives the full range.
How long has Yampa River above Stagecoach Reservoir, CO been measured?
Discharge records at USGS site 09237450 begin in 1988, about 38 years, covering roughly 9,200 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Is there a flow forecast for Yampa River above Stagecoach Reservoir, CO?
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 Yampa River above Stagecoach Reservoir, CO?
The gauge sits at 40.26426, -106.89177, in Colorado, in hydrologic subbasin 14050001, at an elevation of about 7,239 feet, draining roughly 206 square miles.
Can I use Yampa River above Stagecoach Reservoir, CO 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 Yampa River

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

Other gauges in this subbasin