USGS Streamgage 10224000
Sevier River near Lynndyl, UT
Sevier River near Lynndyl, UT is USGS streamgage 10224000 in Utah, monitoring river discharge in hydrologic subbasin 16030005. It sits on the Sevier River, alongside 4 other gauges Rivermatics tracks on the same river. It drains a watershed of about 5,966 square miles. Discharge records at this site go back to 1914. Typical flow runs near 375.8 cfs in July and 201.6 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
- Utah
- Drainage area
- 5,966 sq mi
- Gauge elevation
- 4,671 ft
- Subbasin (HUC-8)
- 16030005
- Coordinates
- 39.4819, -112.39383
- USGS site number
- 10224000
- Records begin
- 1914-04-25 (112 years)
- Rivermatics forecast
- 14-day flow outlook
14-day flow forecast
Based on observations through for Sevier River near Lynndyl, UT. 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 |
|---|---|---|---|---|
| 16.2 | 29.3 | 43.9 | ||
| 13.5 | 30.3 | 56.4 | ||
| 13.2 | 30.3 | 60.5 | ||
| 12.4 | 30 | 63.1 | ||
| 11.1 | 28.7 | 63.7 | ||
| 10.7 | 28.5 | 67.4 | ||
| 10.9 | 28.9 | 67.7 | ||
| 11.5 | 31.6 | 72.3 | ||
| 9.6 | 27 | 66.7 | ||
| 8.7 | 24.9 | 64.9 | ||
| 8.8 | 24.8 | 65.8 | ||
| 8 | 22.5 | 63.9 | ||
| 7.5 | 21.1 | 64 | ||
| 8 | 22.4 | 65.2 |
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 84 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 | 11.5 | 32.4 | 212.9 | |
| February | 11.4 | 35 | 500.1 | |
| March | 14.4 | 41.8 | 531.1 | |
| April | 34.4 | 201.6 | 606.9 | |
| May | 218.6 | 503 | 794.3 | |
| June | 144.9 | 399 | 718.6 | |
| July | 195.5 | 375.8 | 645.4 | |
| August | 79.5 | 279.8 | 548.1 | |
| September | 25.6 | 73.8 | 202.7 | |
| October | 25.5 | 50.2 | 113.4 | |
| November | 25.2 | 47.6 | 99.9 | |
| December | 15.7 | 37.3 | 122.3 |
All values in cubic feet per second (cfs).
Common questions
- When does Sevier River near Lynndyl, UT normally run highest?
- May, on the long-term record. The median daily flow that month is about 503 cfs, against 32.4 cfs in January, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Sevier River near Lynndyl, UT?
- It depends on the month. In January, half of days historically fall near 32.4 cfs, with the middle 80% of days between 11.5 and 212.9 cfs. The month-by-month table on this page gives the full range.
- How long has Sevier River near Lynndyl, UT been measured?
- Discharge records at USGS site 10224000 begin in 1914, about 112 years, covering roughly 9,130 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Is there a flow forecast for Sevier River near Lynndyl, UT?
- 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 Sevier River near Lynndyl, UT?
- The gauge sits at 39.4819, -112.39383, in Utah, in hydrologic subbasin 16030005, at an elevation of about 4,671 feet, draining roughly 5,966 square miles.
- Can I use Sevier River near Lynndyl, UT 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 Sevier River
Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Sevier River in full.
- Sevier River at Hatch, UT 340 sq mi
- Sevier River near Kingston, UT 1,131 sq mi
- Sevier River below San Pitch River near Gunnison, UT 4,921 sq mi
- Sevier River near Juab, UT 5,165 sq mi
- Sevier River near Lynndyl, UT this page