USGS Streamgage 09119000
Tomichi Creek at Gunnison, CO
Tomichi Creek at Gunnison, CO is USGS streamgage 09119000 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 1,061 square miles. Discharge records at this site go back to 1937. Typical flow runs near 130.9 cfs in July and 191.4 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, alongside daily high and low water-temperature forecasts.
View live conditions & forecast →
Gauge details
- State
- Colorado
- Drainage area
- 1,061 sq mi
- Gauge elevation
- 7,638 ft
- Subbasin (HUC-8)
- 14020003
- Coordinates
- 38.52111, -106.94096
- USGS site number
- 09119000
- Records begin
- 1937-10-01 (89 years)
- Rivermatics forecast
- 14-day flow outlook + water temperature
14-day flow forecast
Based on observations through for Tomichi Creek at Gunnison, 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 |
|---|---|---|---|---|
| 7.4 | 9.2 | 11.4 | ||
| 6.5 | 8.7 | 12.2 | ||
| 6.1 | 8.5 | 13.4 | ||
| 6.1 | 9.1 | 17.3 | ||
| 6.2 | 9.6 | 19.8 | ||
| 6.5 | 10.6 | 24.8 | ||
| 6.5 | 11.2 | 27.2 | ||
| 6.6 | 11.6 | 28.5 | ||
| 6.5 | 11.4 | 27.1 | ||
| 6.4 | 11.5 | 27.7 | ||
| 6.1 | 11 | 26.4 | ||
| 5.8 | 10.5 | 24.7 | ||
| 5.7 | 10.4 | 24.5 | ||
| 5.7 | 10.4 | 25.1 |
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 89 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 | 49.1 | 64.7 | 89.3 | |
| February | 50.7 | 68.1 | 90.4 | |
| March | 67.6 | 99.3 | 169.5 | |
| April | 83.1 | 191.4 | 442.9 | |
| May | 79.5 | 300.3 | 744.1 | |
| June | 86 | 351 | 900.4 | |
| July | 46.3 | 130.9 | 376.2 | |
| August | 66.8 | 141.3 | 273.8 | |
| September | 32.6 | 80.3 | 171.7 | |
| October | 46.7 | 85.4 | 148.9 | |
| November | 65.2 | 94.1 | 136.7 | |
| December | 54.5 | 72.9 | 102.5 |
All values in cubic feet per second (cfs).
Common questions
- When does Tomichi Creek at Gunnison, CO normally run highest?
- June, on the long-term record. The median daily flow that month is about 351 cfs, against 64.7 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 Gunnison, CO?
- It depends on the month. In January, half of days historically fall near 64.7 cfs, with the middle 80% of days between 49.1 and 89.3 cfs. The month-by-month table on this page gives the full range.
- How long has Tomichi Creek at Gunnison, CO been measured?
- Discharge records at USGS site 09119000 begin in 1937, about 89 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 Gunnison, 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. A companion model forecasts each day's water-temperature high and low. 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 Gunnison, CO?
- The gauge sits at 38.52111, -106.94096, in Colorado, in hydrologic subbasin 14020003, at an elevation of about 7,638 feet, draining roughly 1,061 square miles.
- Can I use Tomichi Creek at Gunnison, 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 148 sq mi
- Tomichi Creek at Gunnison, CO this page