USGS Streamgage 06926510
Osage River below St. Thomas, MO
Osage River below St. Thomas, MO is USGS streamgage 06926510 in Missouri, monitoring river discharge in hydrologic subbasin 10290111. It sits on the Osage River, alongside 5 other gauges Rivermatics tracks on the same river. It drains a watershed of about 14,584 square miles. Discharge records at this site go back to 1996. Typical flow runs near 7,693.2 cfs in July and 12,190.7 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
- Missouri
- Drainage area
- 14,584 sq mi
- Gauge elevation
- 538 ft
- Subbasin (HUC-8)
- 10290111
- Coordinates
- 38.42144, -92.20825
- USGS site number
- 06926510
- Records begin
- 1996-06-14 (30 years)
- Rivermatics forecast
- 14-day flow outlook
14-day flow forecast
Based on observations through for Osage River below St. Thomas, MO. 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 |
|---|---|---|---|---|
| 2,650 | 5,138 | 8,271 | ||
| 1,954 | 4,532 | 9,089 | ||
| 1,566 | 4,200 | 9,807 | ||
| 1,323 | 4,094 | 10,990 | ||
| 1,205 | 3,692 | 11,763 | ||
| 1,045 | 3,448 | 12,327 | ||
| 1,128 | 3,567 | 12,733 | ||
| 921 | 3,161 | 12,502 | ||
| 871 | 3,029 | 11,535 | ||
| 930 | 2,812 | 10,800 | ||
| 895 | 2,461 | 10,033 | ||
| 885 | 2,369 | 9,804 | ||
| 888 | 2,474 | 10,580 | ||
| 825 | 2,071 | 9,419 |
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 30 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 | 959.7 | 4,634.5 | 32,916.1 | |
| February | 1,956.1 | 8,331.7 | 29,300 | |
| March | 1,912.6 | 9,184.5 | 35,219.4 | |
| April | 1,688.1 | 12,190.7 | 37,326.7 | |
| May | 1,501 | 24,793.5 | 48,764.5 | |
| June | 1,590.4 | 25,370 | 39,333.3 | |
| July | 1,340.7 | 7,693.2 | 45,422.6 | |
| August | 1,052.2 | 3,201 | 24,574.2 | |
| September | 955.5 | 2,029.7 | 21,830 | |
| October | 773.7 | 1,747.4 | 20,764.5 | |
| November | 632 | 1,450.3 | 25,840 | |
| December | 805 | 1,963.9 | 20,716.1 |
All values in cubic feet per second (cfs).
Common questions
- When does Osage River below St. Thomas, MO normally run highest?
- June, on the long-term record. The median daily flow that month is about 25,370 cfs, against 1,450.3 cfs in November, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Osage River below St. Thomas, MO?
- It depends on the month. In January, half of days historically fall near 4,634.5 cfs, with the middle 80% of days between 959.7 and 32,916.1 cfs. The month-by-month table on this page gives the full range.
- How long has Osage River below St. Thomas, MO been measured?
- Discharge records at USGS site 06926510 begin in 1996, about 30 years, covering roughly 9,076 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Is there a flow forecast for Osage River below St. Thomas, MO?
- 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 Osage River below St. Thomas, MO?
- The gauge sits at 38.42144, -92.20825, in Missouri, in hydrologic subbasin 10290111, at an elevation of about 538 feet, draining roughly 14,584 square miles.
- Can I use Osage River below St. Thomas, MO 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 Osage River
Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Osage River in full.
- Osage River above Schell City, MO 5,410 sq mi
- Osage River at Taberville, MO 5,670 sq mi
- Osage River at Warsaw, MO 11,500 sq mi
- Osage River near Bagnell, MO 14,000 sq mi
- Osage River at Tuscumbia, MO 14,070 sq mi
- Osage River below St. Thomas, MO this page