USGS Streamgage 12433200
Chamokane Creek below Falls near Long Lake, WA
Chamokane Creek below Falls near Long Lake, WA is USGS streamgage 12433200 in Washington, monitoring river discharge in hydrologic subbasin 17010307. It sits on the Chamokane Creek, alongside 1 other gauge Rivermatics tracks on the same river. It drains a watershed of about 179 square miles. Discharge records at this site go back to 1971. Typical flow runs near 26.6 cfs in July and 98.9 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
- 179 sq mi
- Gauge elevation
- 1,431 ft
- Subbasin (HUC-8)
- 17010307
- Coordinates
- 47.86322, -117.85829
- USGS site number
- 12433200
- Records begin
- 1971-02-01 (55 years)
- Rivermatics forecast
- 14-day flow outlook
14-day flow forecast
Based on observations through for Chamokane Creek below Falls near Long 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 |
|---|---|---|---|---|
| 24.1 | 24.5 | 24.8 | ||
| 23.6 | 24.2 | 24.7 | ||
| 25 | 27.4 | 34.6 | ||
| 24.9 | 27.6 | 34.2 | ||
| 24.2 | 26.1 | 29.6 | ||
| 23.9 | 25.5 | 28 | ||
| 23.7 | 25.1 | 27.3 | ||
| 23.4 | 24.9 | 26.9 | ||
| 23.2 | 24.6 | 26.5 | ||
| 22.9 | 24.4 | 26.2 | ||
| 22.8 | 24.3 | 26.1 | ||
| 22.7 | 24.2 | 26.1 | ||
| 22.6 | 24.1 | 26 | ||
| 22.4 | 24 | 25.9 |
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 55 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 | 22.7 | 32.5 | 111.1 | |
| February | 24.6 | 46.4 | 187.6 | |
| March | 37.6 | 114 | 358.8 | |
| April | 35.3 | 98.9 | 320.6 | |
| May | 24.4 | 43.1 | 111 | |
| June | 21.1 | 30.9 | 66.1 | |
| July | 19.9 | 26.6 | 43.1 | |
| August | 19.3 | 26 | 35.6 | |
| September | 20 | 27.4 | 35.2 | |
| October | 21.3 | 28.5 | 37.3 | |
| November | 21.2 | 29.1 | 40.2 | |
| December | 20.7 | 30.1 | 58.7 |
All values in cubic feet per second (cfs).
Common questions
- When does Chamokane Creek below Falls near Long Lake, WA normally run highest?
- March, on the long-term record. The median daily flow that month is about 114 cfs, against 26 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 Chamokane Creek below Falls near Long Lake, WA?
- It depends on the month. In January, half of days historically fall near 32.5 cfs, with the middle 80% of days between 22.7 and 111.1 cfs. The month-by-month table on this page gives the full range.
- How long has Chamokane Creek below Falls near Long Lake, WA been measured?
- Discharge records at USGS site 12433200 begin in 1971, about 55 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 Chamokane Creek below Falls near Long 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 Chamokane Creek below Falls near Long Lake, WA?
- The gauge sits at 47.86322, -117.85829, in Washington, in hydrologic subbasin 17010307, at an elevation of about 1,431 feet, draining roughly 179 square miles.
- Can I use Chamokane Creek below Falls near Long 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.
Upstream and downstream on the Chamokane Creek
Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Chamokane Creek in full.
- Chamokane Creek near Springdale, WA 100 sq mi
- Chamokane Creek below Falls near Long Lake, WA this page