USGS Streamgage 12116400
Cedar River at Powerplant at Cedar Falls, WA
Cedar River at Powerplant at Cedar Falls, WA is USGS streamgage 12116400 in Washington, monitoring river discharge in hydrologic subbasin 17110012. It sits on the Cedar River, alongside 6 other gauges Rivermatics tracks on the same river. It drains a watershed of about 84 square miles. Discharge records at this site go back to 2001. Typical flow runs near 52.3 cfs in July and 65.1 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
- Washington
- Drainage area
- 84 sq mi
- Gauge elevation
- 946 ft
- Subbasin (HUC-8)
- 17110012
- Coordinates
- 47.41871, -121.7815
- USGS site number
- 12116400
- Records begin
- 2001-10-01 (25 years)
- Rivermatics forecast
- 14-day flow outlook + water temperature
14-day flow forecast
Based on observations through for Cedar River at Powerplant at Cedar Falls, 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 |
|---|---|---|---|---|
| 34.7 | 35.8 | 36.9 | ||
| 36.1 | 40.6 | 60 | ||
| 34.9 | 38.2 | 55.9 | ||
| 34.4 | 37.8 | 60.2 | ||
| 33.9 | 37.5 | 64 | ||
| 33.4 | 37.1 | 61.1 | ||
| 32.8 | 36.5 | 56.2 | ||
| 32.6 | 36.4 | 55.7 | ||
| 32.4 | 36.2 | 53.1 | ||
| 32.4 | 36.3 | 54.3 | ||
| 32.4 | 36.9 | 65.7 | ||
| 32.6 | 38.3 | 68.8 | ||
| 33.4 | 40.2 | 71.5 | ||
| 32.2 | 38.7 | 70 |
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 25 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 | 42.2 | 88.5 | 663.8 | |
| February | 41.2 | 67.4 | 514.6 | |
| March | 39.2 | 58.6 | 445.4 | |
| April | 39.3 | 65.1 | 355 | |
| May | 37.4 | 73.5 | 368.7 | |
| June | 43.4 | 77.6 | 273.6 | |
| July | 37.3 | 52.3 | 113.5 | |
| August | 31.5 | 41.9 | 62.2 | |
| September | 35.6 | 43.1 | 94.5 | |
| October | 34.8 | 47.4 | 199.3 | |
| November | 38 | 75.8 | 540 | |
| December | 39.5 | 70.1 | 586.2 |
All values in cubic feet per second (cfs).
Common questions
- When does Cedar River at Powerplant at Cedar Falls, WA normally run highest?
- January, on the long-term record. The median daily flow that month is about 88.5 cfs, against 41.9 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 Cedar River at Powerplant at Cedar Falls, WA?
- It depends on the month. In January, half of days historically fall near 88.5 cfs, with the middle 80% of days between 42.2 and 663.8 cfs. The month-by-month table on this page gives the full range.
- How long has Cedar River at Powerplant at Cedar Falls, WA been measured?
- Discharge records at USGS site 12116400 begin in 2001, about 25 years, covering roughly 9,074 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Is there a flow forecast for Cedar River at Powerplant at Cedar Falls, 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. 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 Cedar River at Powerplant at Cedar Falls, WA?
- The gauge sits at 47.41871, -121.7815, in Washington, in hydrologic subbasin 17110012, at an elevation of about 946 feet, draining roughly 84 square miles.
- Can I use Cedar River at Powerplant at Cedar Falls, 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.
Upstream and downstream on the Cedar River
Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Cedar River in full.
- Cedar River below Bear Creek near Cedar Falls, WA 25 sq mi
- Cedar River near Cedar Falls, WA 41 sq mi
- Cedar River at Powerplant at Cedar Falls, WA this page
- Cedar River at Cedar Falls, WA 84 sq mi
- Cedar River near Landsburg, WA 121 sq mi
- Cedar River below Diversion near Landsburg, WA 134 sq mi
- Cedar River at Renton, WA 184 sq mi