USGS Streamgage 12451000
Stehekin River at Stehekin, WA
Stehekin River at Stehekin, WA is USGS streamgage 12451000 in Washington, monitoring river discharge in hydrologic subbasin 17020009. It drains a watershed of about 321 square miles. Discharge records at this site go back to 1910. Typical flow runs near 2,268.7 cfs in July and 1,272.1 cfs in April, with the higher of the two arriving in July. Rivermatics issues a daily machine-learned flow outlook for this gauge, reaching 14 days ahead.
View live conditions & forecast →
Gauge details
- State
- Washington
- Drainage area
- 321 sq mi
- Gauge elevation
- 1,143 ft
- Subbasin (HUC-8)
- 17020009
- Coordinates
- 48.32958, -120.69177
- USGS site number
- 12451000
- Records begin
- 1910-12-01 (116 years)
- Rivermatics forecast
- 14-day flow outlook
14-day flow forecast
Based on observations through for Stehekin River at Stehekin, WA. 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 |
|---|---|---|---|---|
| 228 | 260 | 293 | ||
| 215 | 256 | 308 | ||
| 240 | 307 | 433 | ||
| 242 | 333 | 519 | ||
| 231 | 310 | 457 | ||
| 213 | 283 | 408 | ||
| 200 | 265 | 376 | ||
| 190 | 252 | 356 | ||
| 181 | 243 | 342 | ||
| 174 | 235 | 335 | ||
| 171 | 231 | 326 | ||
| 165 | 225 | 317 | ||
| 160 | 223 | 321 | ||
| 156 | 218 | 316 |
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 116 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 | 175.5 | 334.9 | 719.5 | |
| February | 178.4 | 306.4 | 855.1 | |
| March | 240.4 | 433.3 | 1,022.1 | |
| April | 633.9 | 1,272.1 | 2,508.7 | |
| May | 1,790 | 3,203.5 | 6,016.8 | |
| June | 2,124.7 | 3,749.3 | 6,375.3 | |
| July | 1,277.5 | 2,268.7 | 4,286.1 | |
| August | 700.2 | 1,089.2 | 1,874.5 | |
| September | 404.8 | 608.5 | 1,001.2 | |
| October | 262.6 | 468.8 | 1,129.5 | |
| November | 244.8 | 501.9 | 1,460.7 | |
| December | 204.1 | 380.5 | 1,038.7 |
All values in cubic feet per second (cfs).
Common questions
- When does Stehekin River at Stehekin, WA normally run highest?
- June, on the long-term record. The median daily flow that month is about 3,749.3 cfs, against 306.4 cfs in February, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Stehekin River at Stehekin, WA?
- It depends on the month. In January, half of days historically fall near 334.9 cfs, with the middle 80% of days between 175.5 and 719.5 cfs. The month-by-month table on this page gives the full range.
- How long has Stehekin River at Stehekin, WA been measured?
- Discharge records at USGS site 12451000 begin in 1910, about 116 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 Stehekin River at Stehekin, WA?
- 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 Stehekin River at Stehekin, WA?
- The gauge sits at 48.32958, -120.69177, in Washington, in hydrologic subbasin 17020009, at an elevation of about 1,143 feet, draining roughly 321 square miles.
- Can I use Stehekin River at Stehekin, WA 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.