USGS Streamgage 09115500
Tomichi Creek at Sargents, CO
Tomichi Creek at Sargents, CO is USGS streamgage 09115500 in Colorado, monitoring river discharge in hydrologic subbasin 14020003. It sits on the Tomichi Creek, alongside 1 other gauge Rivermatics tracks on the same river. It drains a watershed of about 148 square miles. Discharge records at this site go back to 1916. Typical flow runs near 51.4 cfs in July and 59.1 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
- 148 sq mi
- Gauge elevation
- 8,416 ft
- Subbasin (HUC-8)
- 14020003
- Coordinates
- 38.39503, -106.42262
- USGS site number
- 09115500
- Records begin
- 1916-10-01 (110 years)
- Rivermatics forecast
- 14-day flow outlook
14-day flow forecast
Based on observations through for Tomichi Creek at Sargents, 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.
| Date | Low p10 | Expected p50 | High p90 | Range |
|---|---|---|---|---|
| 7.6 | 8.1 | 8.9 | ||
| 7.2 | 8 | 9 | ||
| 7.1 | 8.1 | 10 | ||
| 7.4 | 8.9 | 12.4 | ||
| 7.9 | 10 | 14.8 | ||
| 8.7 | 11.8 | 20.1 | ||
| 8.8 | 11.9 | 18.7 | ||
| 8.3 | 10.8 | 15.6 | ||
| 7.8 | 10 | 14.1 | ||
| 7.7 | 9.9 | 14.1 | ||
| 7.5 | 9.6 | 13.7 | ||
| 7.2 | 9.3 | 13.1 | ||
| 7.1 | 9.2 | 13.1 | ||
| 7 | 9 | 12.8 |
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 110 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.
| Month | Low p10 | Typical p50 | High p90 | Range |
|---|---|---|---|---|
| January | 15 | 20.5 | 28.8 | |
| February | 14.9 | 21.2 | 29.3 | |
| March | 17.8 | 27.3 | 44.4 | |
| April | 33.2 | 59.1 | 117.8 | |
| May | 76.9 | 179 | 346.7 | |
| June | 53.8 | 157.3 | 360 | |
| July | 23.3 | 51.4 | 108.3 | |
| August | 18.1 | 35.1 | 63.1 | |
| September | 16.1 | 27.4 | 42.8 | |
| October | 21.1 | 29.7 | 42.6 | |
| November | 20.6 | 27.9 | 36.1 | |
| December | 17 | 22.9 | 30.7 |
All values in cubic feet per second (cfs).
Common questions
- When does Tomichi Creek at Sargents, CO normally run highest?
- May, on the long-term record. The median daily flow that month is about 179 cfs, against 20.5 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 Tomichi Creek at Sargents, CO?
- It depends on the month. In January, half of days historically fall near 20.5 cfs, with the middle 80% of days between 15 and 28.8 cfs. The month-by-month table on this page gives the full range.
- How long has Tomichi Creek at Sargents, CO been measured?
- Discharge records at USGS site 09115500 begin in 1916, about 110 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 Tomichi Creek at Sargents, 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 Tomichi Creek at Sargents, CO?
- The gauge sits at 38.39503, -106.42262, in Colorado, in hydrologic subbasin 14020003, at an elevation of about 8,416 feet, draining roughly 148 square miles.
- Can I use Tomichi Creek at Sargents, 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 Tomichi Creek
Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Tomichi Creek in full.
- Tomichi Creek at Sargents, CO this page
- Tomichi Creek at Gunnison, CO 1,061 sq mi