USGS Streamgage 06450500
Little White River below White River, SD
Little White River below White River, SD is USGS streamgage 06450500 in South Dakota, monitoring river discharge in hydrologic subbasin 10140203. It sits on the Little White River, alongside 3 other gauges Rivermatics tracks on the same river. It drains a watershed of about 1,549 square miles. Discharge records at this site go back to 1930. Typical flow runs near 93.8 cfs in July and 196.7 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
- South Dakota
- Drainage area
- 1,549 sq mi
- Gauge elevation
- 1,916 ft
- Subbasin (HUC-8)
- 10140203
- Coordinates
- 43.60139, -100.74944
- USGS site number
- 06450500
- Records begin
- 1930-05-11 (96 years)
- Rivermatics forecast
- 14-day flow outlook
14-day flow forecast
Based on observations through for Little White River below White River, SD. 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 |
|---|---|---|---|---|
| 60.3 | 63.7 | 67.1 | ||
| 57.1 | 62 | 66.8 | ||
| 56.1 | 62.3 | 69.9 | ||
| 59.9 | 71.7 | 107 | ||
| 59.6 | 75.2 | 112 | ||
| 59.7 | 75.4 | 110 | ||
| 66.7 | 94 | 172 | ||
| 77.1 | 176 | 598 | ||
| 83.7 | 182 | 523 | ||
| 74.7 | 132 | 292 | ||
| 71.6 | 110 | 203 | ||
| 68.2 | 99.4 | 168 | ||
| 64.8 | 91.4 | 147 | ||
| 63.2 | 87.4 | 134 |
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 77 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 | 57.7 | 93.2 | 168.4 | |
| February | 73.6 | 125.2 | 239.6 | |
| March | 102.1 | 194 | 431.1 | |
| April | 110.4 | 196.7 | 429.8 | |
| May | 98 | 181.1 | 409.4 | |
| June | 73.1 | 146.5 | 357.9 | |
| July | 47.6 | 93.8 | 216.3 | |
| August | 41.4 | 73.1 | 150.9 | |
| September | 45.1 | 72.7 | 123.4 | |
| October | 58.4 | 83.6 | 133.2 | |
| November | 61.7 | 94.9 | 145.7 | |
| December | 56.6 | 94.4 | 159.1 |
All values in cubic feet per second (cfs).
Common questions
- When does Little White River below White River, SD normally run highest?
- April, on the long-term record. The median daily flow that month is about 196.7 cfs, against 72.7 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 Little White River below White River, SD?
- It depends on the month. In January, half of days historically fall near 93.2 cfs, with the middle 80% of days between 57.7 and 168.4 cfs. The month-by-month table on this page gives the full range.
- How long has Little White River below White River, SD been measured?
- Discharge records at USGS site 06450500 begin in 1930, about 96 years, covering roughly 9,146 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Is there a flow forecast for Little White River below White River, SD?
- 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 Little White River below White River, SD?
- The gauge sits at 43.60139, -100.74944, in South Dakota, in hydrologic subbasin 10140203, at an elevation of about 1,916 feet, draining roughly 1,549 square miles.
- Can I use Little White River below White River, SD 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 Little White River
Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Little White River in full.
- Little White River near Martin, SD 313 sq mi
- Little White River near Vetal, SD 607 sq mi
- Little White River near Rosebud, SD 1,033 sq mi
- Little White River below White River, SD this page