USGS Streamgage 09136100
North Fk Gunnison River above Mouth near Lazear, CO
North Fk Gunnison River above Mouth near Lazear, CO is USGS streamgage 09136100 in Colorado, monitoring river discharge in hydrologic subbasin 14020004. It sits on the North Fork Gunnison River, alongside 2 other gauges Rivermatics tracks on the same river. It drains a watershed of about 969 square miles. Discharge records at this site go back to 2009. Typical flow runs near 158.5 cfs in July and 668.5 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
- 969 sq mi
- Gauge elevation
- 5,102 ft
- Subbasin (HUC-8)
- 14020004
- Coordinates
- 38.78517, -107.83342
- USGS site number
- 09136100
- Records begin
- 2009-04-16 (17 years)
- Rivermatics forecast
- 14-day flow outlook + water temperature
14-day flow forecast
Based on observations through for North Fk Gunnison River above Mouth near Lazear, 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 |
|---|---|---|---|---|
| 30 | 31.4 | 33.1 | ||
| 29.1 | 31.2 | 33.8 | ||
| 28.4 | 31.4 | 36.3 | ||
| 30.8 | 40.6 | 87 | ||
| 34.8 | 52.8 | 120 | ||
| 38.2 | 64.9 | 197 | ||
| 45.9 | 88.2 | 233 | ||
| 41.4 | 76 | 190 | ||
| 38.5 | 63 | 145 | ||
| 36.9 | 56.1 | 114 | ||
| 34.9 | 50.9 | 96.8 | ||
| 32.7 | 46.6 | 88.7 | ||
| 31 | 43.8 | 83.6 | ||
| 30.7 | 42.5 | 74.4 |
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.
| Month | Low p10 | Typical p50 | High p90 | Range |
|---|---|---|---|---|
| January | 81.2 | 133.9 | 185.3 | |
| February | 84.9 | 120 | 236.2 | |
| March | 110.4 | 187.8 | 510.5 | |
| April | 148.1 | 668.5 | 2,038.7 | |
| May | 359.9 | 1,345.3 | 3,792.6 | |
| June | 128.8 | 1,181.6 | 3,130 | |
| July | 63 | 158.5 | 966.9 | |
| August | 65.3 | 116.3 | 217.2 | |
| September | 50.5 | 129.2 | 235.3 | |
| October | 101.5 | 171.6 | 305.4 | |
| November | 98 | 166.8 | 234.8 | |
| December | 88.7 | 141.3 | 202.2 |
All values in cubic feet per second (cfs).
Common questions
- When does North Fk Gunnison River above Mouth near Lazear, CO normally run highest?
- May, on the long-term record. The median daily flow that month is about 1,345.3 cfs, against 116.3 cfs in August, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for North Fk Gunnison River above Mouth near Lazear, CO?
- It depends on the month. In January, half of days historically fall near 133.9 cfs, with the middle 80% of days between 81.2 and 185.3 cfs. The month-by-month table on this page gives the full range.
- How long has North Fk Gunnison River above Mouth near Lazear, CO been measured?
- Discharge records at USGS site 09136100 begin in 2009, about 17 years, covering roughly 6,321 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Is there a flow forecast for North Fk Gunnison River above Mouth near Lazear, 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 North Fk Gunnison River above Mouth near Lazear, CO?
- The gauge sits at 38.78517, -107.83342, in Colorado, in hydrologic subbasin 14020004, at an elevation of about 5,102 feet, draining roughly 969 square miles.
- Can I use North Fk Gunnison River above Mouth near Lazear, 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 North Fork Gunnison River
Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the North Fork Gunnison River in full.
- North Fork Gunnison River near Somerset, CO 525 sq mi
- North Fork Gunnison River below Paonia, CO 744 sq mi
- North Fk Gunnison River above Mouth near Lazear, CO this page
Other gauges in this subbasin
- North Fork Gunnison below Raven Gulch near Somerset
- Anthracite Creek near Somerset, CO
- Anthracite Creek above Mouth near Somerset
- North Fork Gunnison River near Somerset, CO
- Hubbard Creek at Highway 133 at Mouth near Bowie, CO
- North Fork Gunnison River below Paonia, CO
- Leroux Creek above Mouth near Hotchkiss, CO