USGS Streamgage 06191500
Yellowstone River at Corwin Springs, MT
Yellowstone River at Corwin Springs, MT is USGS streamgage 06191500 in Montana, monitoring river discharge in hydrologic subbasin 10070002. It sits on the Yellowstone River, alongside 9 other gauges Rivermatics tracks on the same river. It drains a watershed of about 2,615 square miles. Discharge records at this site go back to 1889. Typical flow runs near 6,330 cfs in July and 1,398.3 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
- Montana
- Drainage area
- 2,615 sq mi
- Gauge elevation
- 5,084 ft
- Subbasin (HUC-8)
- 10070002
- Coordinates
- 45.11212, -110.79367
- USGS site number
- 06191500
- Records begin
- 1889-08-01 (137 years)
- Rivermatics forecast
- 14-day flow outlook + water temperature
14-day flow forecast
Based on observations through for Yellowstone River at Corwin Springs, MT. 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 |
|---|---|---|---|---|
| 1,409 | 1,483 | 1,541 | ||
| 1,377 | 1,461 | 1,524 | ||
| 1,346 | 1,435 | 1,504 | ||
| 1,322 | 1,416 | 1,491 | ||
| 1,295 | 1,392 | 1,464 | ||
| 1,271 | 1,373 | 1,447 | ||
| 1,258 | 1,363 | 1,442 | ||
| 1,236 | 1,344 | 1,419 | ||
| 1,217 | 1,327 | 1,405 | ||
| 1,204 | 1,314 | 1,393 | ||
| 1,190 | 1,300 | 1,381 | ||
| 1,176 | 1,289 | 1,372 | ||
| 1,167 | 1,279 | 1,364 | ||
| 1,154 | 1,269 | 1,356 |
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 137 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 | 600.2 | 832.4 | 1,103.5 | |
| February | 556.7 | 815.4 | 1,085.9 | |
| March | 664.2 | 913.2 | 1,173.2 | |
| April | 950.5 | 1,398.3 | 2,569 | |
| May | 2,953.5 | 5,716.8 | 10,953.9 | |
| June | 6,097 | 10,625.3 | 17,770 | |
| July | 3,297.1 | 6,330 | 10,312.3 | |
| August | 1,760 | 2,949.7 | 4,477.7 | |
| September | 1,233.3 | 1,833.3 | 2,663 | |
| October | 1,018.5 | 1,425.2 | 2,072.9 | |
| November | 847.1 | 1,152.3 | 1,561.7 | |
| December | 685.9 | 944.7 | 1,251 |
All values in cubic feet per second (cfs).
Common questions
- When does Yellowstone River at Corwin Springs, MT normally run highest?
- June, on the long-term record. The median daily flow that month is about 10,625.3 cfs, against 815.4 cfs in February, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Yellowstone River at Corwin Springs, MT?
- It depends on the month. In January, half of days historically fall near 832.4 cfs, with the middle 80% of days between 600.2 and 1,103.5 cfs. The month-by-month table on this page gives the full range.
- How long has Yellowstone River at Corwin Springs, MT been measured?
- Discharge records at USGS site 06191500 begin in 1889, about 137 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 Yellowstone River at Corwin Springs, MT?
- 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 Yellowstone River at Corwin Springs, MT?
- The gauge sits at 45.11212, -110.79367, in Montana, in hydrologic subbasin 10070002, at an elevation of about 5,084 feet, draining roughly 2,615 square miles.
- Can I use Yellowstone River at Corwin Springs, MT 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 Yellowstone River
Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Yellowstone River in full.
- Yellowstone River at Yellowstone Lake Outlet YNP 995 sq mi
- Yellowstone River at Corwin Springs, MT this page
- Yellowstone River near Livingston, MT 3,551 sq mi
- Yellowstone River at Billings, MT 11,807 sq mi
- Yellowstone River at Forsyth, MT 40,152 sq mi
- Yellowstone River at Miles City, MT 48,288 sq mi
- Yellowstone River at Glendive, MT 66,731 sq mi
- Yellowstone River near Sidney, MT 69,099 sq mi
- Yellowstone River at Big Timber, MT
- Yellowstone River at Springdale, MT