USGS Streamgage 14242580
Toutle River at Tower Road near Silver Lake, WA
Toutle River at Tower Road near Silver Lake, WA is USGS streamgage 14242580 in Washington, monitoring river discharge in hydrologic subbasin 17080005. It drains a watershed of about 496 square miles. Discharge records at this site go back to 1981. Typical flow runs near 713.8 cfs in July and 2,446.3 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
- Washington
- Drainage area
- 496 sq mi
- Subbasin (HUC-8)
- 17080005
- Coordinates
- 46.335, -122.84083
- USGS site number
- 14242580
- Records begin
- 1981-03-24 (45 years)
- Rivermatics forecast
- 14-day flow outlook
14-day flow forecast
Based on observations through for Toutle River at Tower Road near Silver Lake, 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 |
|---|---|---|---|---|
| 251 | 258 | 265 | ||
| 254 | 267 | 289 | ||
| 299 | 393 | 606 | ||
| 333 | 449 | 650 | ||
| 300 | 369 | 484 | ||
| 277 | 319 | 386 | ||
| 260 | 294 | 346 | ||
| 249 | 280 | 328 | ||
| 241 | 271 | 316 | ||
| 234 | 263 | 303 | ||
| 230 | 258 | 294 | ||
| 227 | 255 | 291 | ||
| 222 | 251 | 287 | ||
| 219 | 248 | 285 |
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 45 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 | 1,333.2 | 2,896.5 | 7,047.7 | |
| February | 1,283.4 | 2,467.6 | 5,800 | |
| March | 1,405.8 | 2,579.4 | 5,219.7 | |
| April | 1,593.7 | 2,446.3 | 4,357 | |
| May | 1,213.7 | 1,975.8 | 3,526.8 | |
| June | 796.4 | 1,377.3 | 2,874.7 | |
| July | 446.4 | 713.8 | 1,251.6 | |
| August | 339.3 | 457.1 | 669.2 | |
| September | 290.6 | 399.9 | 722 | |
| October | 333.3 | 626 | 1,935.1 | |
| November | 688.2 | 2,149.3 | 5,421 | |
| December | 1,161.3 | 2,497.4 | 7,063.5 |
All values in cubic feet per second (cfs).
Common questions
- When does Toutle River at Tower Road near Silver Lake, WA normally run highest?
- January, on the long-term record. The median daily flow that month is about 2,896.5 cfs, against 399.9 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 Toutle River at Tower Road near Silver Lake, WA?
- It depends on the month. In January, half of days historically fall near 2,896.5 cfs, with the middle 80% of days between 1,333.2 and 7,047.7 cfs. The month-by-month table on this page gives the full range.
- How long has Toutle River at Tower Road near Silver Lake, WA been measured?
- Discharge records at USGS site 14242580 begin in 1981, about 45 years, covering roughly 9,201 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Is there a flow forecast for Toutle River at Tower Road near Silver Lake, 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 Toutle River at Tower Road near Silver Lake, WA?
- The gauge sits at 46.335, -122.84083, in Washington, in hydrologic subbasin 17080005, draining roughly 496 square miles.
- Can I use Toutle River at Tower Road near Silver Lake, 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.