USGS Streamgage 12189500
Sauk River near Sauk, WA
Sauk River near Sauk, WA is USGS streamgage 12189500 in Washington, monitoring river discharge in hydrologic subbasin 17110006. It sits on the Sauk River, alongside 2 other gauges Rivermatics tracks on the same river. It drains a watershed of about 714 square miles. Discharge records at this site go back to 1911. Typical flow runs near 4,882.6 cfs in July and 3,556 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, alongside daily high and low water-temperature forecasts.
View live conditions & forecast →
Gauge details
- State
- Washington
- Drainage area
- 714 sq mi
- Gauge elevation
- 273 ft
- Subbasin (HUC-8)
- 17110006
- Coordinates
- 48.42456, -121.56846
- USGS site number
- 12189500
- Records begin
- 1911-04-01 (115 years)
- Rivermatics forecast
- 14-day flow outlook + water temperature
14-day flow forecast
Based on observations through for Sauk River near Sauk, 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 |
|---|---|---|---|---|
| 834 | 903 | 976 | ||
| 802 | 884 | 978 | ||
| 844 | 978 | 1,213 | ||
| 869 | 1,054 | 1,384 | ||
| 844 | 1,004 | 1,257 | ||
| 791 | 934 | 1,136 | ||
| 761 | 898 | 1,080 | ||
| 733 | 867 | 1,040 | ||
| 714 | 847 | 1,015 | ||
| 690 | 823 | 988 | ||
| 672 | 806 | 964 | ||
| 648 | 785 | 942 | ||
| 634 | 772 | 934 | ||
| 624 | 763 | 925 |
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 98 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 | 1,612.6 | 3,204.2 | 8,266.8 | |
| February | 1,575.2 | 2,854.1 | 6,847.9 | |
| March | 1,715.8 | 2,771.3 | 5,691.6 | |
| April | 2,259 | 3,556 | 6,359 | |
| May | 3,710 | 5,880.3 | 10,422.6 | |
| June | 4,425 | 7,158 | 11,713.3 | |
| July | 2,759.4 | 4,882.6 | 9,007.7 | |
| August | 1,599.4 | 2,337.4 | 4,378.7 | |
| September | 1,111.5 | 1,645.3 | 3,328 | |
| October | 968.2 | 2,024.8 | 5,793.5 | |
| November | 1,452 | 3,412 | 9,164 | |
| December | 1,727.4 | 3,438.7 | 8,757.7 |
All values in cubic feet per second (cfs).
Common questions
- When does Sauk River near Sauk, WA normally run highest?
- June, on the long-term record. The median daily flow that month is about 7,158 cfs, against 1,645.3 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 Sauk River near Sauk, WA?
- It depends on the month. In January, half of days historically fall near 3,204.2 cfs, with the middle 80% of days between 1,612.6 and 8,266.8 cfs. The month-by-month table on this page gives the full range.
- How long has Sauk River near Sauk, WA been measured?
- Discharge records at USGS site 12189500 begin in 1911, about 115 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 Sauk River near Sauk, 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 Sauk River near Sauk, WA?
- The gauge sits at 48.42456, -121.56846, in Washington, in hydrologic subbasin 17110006, at an elevation of about 273 feet, draining roughly 714 square miles.
- Can I use Sauk River near Sauk, 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 Sauk River
Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Sauk River in full.
- Sauk River Ab White Chuck River near Darrington, WA 152 sq mi
- Sauk River at Darrington, WA 293 sq mi
- Sauk River near Sauk, WA this page