USGS Streamgage 12391950
Clark Fork River below Cabinet Gorge Dam, ID
Clark Fork River below Cabinet Gorge Dam, ID is USGS streamgage 12391950 in Idaho, monitoring river discharge in hydrologic subbasin 17010213. It drains a watershed of about 22,067 square miles. Discharge records at this site go back to 1995. Typical flow runs near 20,880.6 cfs in July and 24,090 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
- Idaho
- Drainage area
- 22,067 sq mi
- Gauge elevation
- 2,145 ft
- Subbasin (HUC-8)
- 17010213
- Coordinates
- 48.08806, -116.07278
- USGS site number
- 12391950
- Records begin
- 1995-10-01 (31 years)
- Rivermatics forecast
- 14-day flow outlook
14-day flow forecast
Based on observations through for Clark Fork River below Cabinet Gorge Dam, ID. 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 |
|---|---|---|---|---|
| 7,863 | 10,545 | 13,819 | ||
| 7,649 | 11,464 | 15,980 | ||
| 7,222 | 11,019 | 15,615 | ||
| 6,779 | 10,520 | 15,217 | ||
| 6,867 | 10,630 | 15,381 | ||
| 6,755 | 10,548 | 15,378 | ||
| 6,771 | 10,547 | 15,137 | ||
| 6,611 | 10,360 | 14,831 | ||
| 6,372 | 10,079 | 14,700 | ||
| 6,485 | 10,391 | 15,458 | ||
| 6,352 | 10,172 | 15,257 | ||
| 6,041 | 9,659 | 14,766 | ||
| 5,956 | 9,542 | 14,906 | ||
| 5,888 | 9,577 | 15,467 |
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 31 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 | 7,321.3 | 13,596.8 | 20,012.9 | |
| February | 6,584.6 | 12,993.1 | 22,385.7 | |
| March | 6,740.3 | 14,274.2 | 27,980.6 | |
| April | 9,991 | 24,090 | 40,156.7 | |
| May | 25,445.2 | 43,374.2 | 76,009.7 | |
| June | 25,810 | 48,073.3 | 86,750 | |
| July | 11,362.3 | 20,880.6 | 37,332.3 | |
| August | 5,939.4 | 10,030.3 | 17,712.9 | |
| September | 5,639.3 | 8,324.3 | 14,070 | |
| October | 5,957.1 | 9,359.7 | 14,816.1 | |
| November | 6,573 | 11,799.7 | 19,780 | |
| December | 7,787.4 | 13,816.1 | 20,935.5 |
All values in cubic feet per second (cfs).
Common questions
- When does Clark Fork River below Cabinet Gorge Dam, ID normally run highest?
- June, on the long-term record. The median daily flow that month is about 48,073.3 cfs, against 8,324.3 cfs in September, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Clark Fork River below Cabinet Gorge Dam, ID?
- It depends on the month. In January, half of days historically fall near 13,596.8 cfs, with the middle 80% of days between 7,321.3 and 20,012.9 cfs. The month-by-month table on this page gives the full range.
- How long has Clark Fork River below Cabinet Gorge Dam, ID been measured?
- Discharge records at USGS site 12391950 begin in 1995, about 31 years, covering roughly 9,199 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Is there a flow forecast for Clark Fork River below Cabinet Gorge Dam, ID?
- 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 Clark Fork River below Cabinet Gorge Dam, ID?
- The gauge sits at 48.08806, -116.07278, in Idaho, in hydrologic subbasin 17010213, at an elevation of about 2,145 feet, draining roughly 22,067 square miles.
- Can I use Clark Fork River below Cabinet Gorge Dam, ID 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.