USGS Streamgage 06810000
Nishnabotna River above Hamburg, IA
Nishnabotna River above Hamburg, IA is USGS streamgage 06810000 in Iowa, monitoring river discharge in hydrologic subbasin 10240004. It drains a watershed of about 2,806 square miles. Discharge records at this site go back to 1917. Typical flow runs near 1,155.6 cfs in July and 1,000.2 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
- Iowa
- Drainage area
- 2,806 sq mi
- Gauge elevation
- 933 ft
- Subbasin (HUC-8)
- 10240004
- Coordinates
- 40.60119, -95.6445
- USGS site number
- 06810000
- Records begin
- 1917-06-17 (109 years)
- Rivermatics forecast
- 14-day flow outlook
14-day flow forecast
Based on observations through for Nishnabotna River above Hamburg, IA. 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 |
|---|---|---|---|---|
| 1,354 | 1,779 | 2,573 | ||
| 999 | 1,358 | 2,142 | ||
| 870 | 1,156 | 1,765 | ||
| 800 | 1,061 | 1,803 | ||
| 777 | 1,086 | 2,242 | ||
| 888 | 1,693 | 5,000 | ||
| 972 | 2,438 | 7,582 | ||
| 1,103 | 2,651 | 6,972 | ||
| 1,126 | 2,465 | 5,930 | ||
| 1,051 | 2,129 | 4,854 | ||
| 953 | 1,791 | 3,990 | ||
| 848 | 1,511 | 3,429 | ||
| 803 | 1,380 | 3,180 | ||
| 751 | 1,239 | 2,715 |
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 104 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 | 95.1 | 384.3 | 1,595.8 | |
| February | 144.3 | 618.3 | 2,544.5 | |
| March | 262.6 | 1,025.8 | 4,422.3 | |
| April | 233.2 | 1,000.2 | 3,581 | |
| May | 200.2 | 1,354.2 | 5,430.6 | |
| June | 264.2 | 1,676.7 | 7,118.7 | |
| July | 193.3 | 1,155.6 | 3,969.4 | |
| August | 146.1 | 703.2 | 2,562.9 | |
| September | 117.3 | 502.4 | 2,474.7 | |
| October | 109.8 | 424.2 | 2,276.5 | |
| November | 154.1 | 455.7 | 1,992.7 | |
| December | 110.8 | 379.1 | 1,684.2 |
All values in cubic feet per second (cfs).
Common questions
- When does Nishnabotna River above Hamburg, IA normally run highest?
- June, on the long-term record. The median daily flow that month is about 1,676.7 cfs, against 379.1 cfs in December, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Nishnabotna River above Hamburg, IA?
- It depends on the month. In January, half of days historically fall near 384.3 cfs, with the middle 80% of days between 95.1 and 1,595.8 cfs. The month-by-month table on this page gives the full range.
- How long has Nishnabotna River above Hamburg, IA been measured?
- Discharge records at USGS site 06810000 begin in 1917, about 109 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 Nishnabotna River above Hamburg, IA?
- 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 Nishnabotna River above Hamburg, IA?
- The gauge sits at 40.60119, -95.6445, in Iowa, in hydrologic subbasin 10240004, at an elevation of about 933 feet, draining roughly 2,806 square miles.
- Can I use Nishnabotna River above Hamburg, IA 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.