Grand River near Sumner
Observed Mon, Sep 21, 9:45 PM CDT
- Flood stage
- 26.00 ft
- Record crest
- 42.52 ft1993
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 40.00 ft |
| Moderate flood | 28.00 ft |
| Minor flood | 26.00 ft |
| Action | 21.00 ft |
- 52.00 ftWater reaches the road surface of State Highway 139 bridge.
- 45.00 ftWater reaches the bottom of State Highway 139 bridge.
- 44.00 ftWater reaches the bottom of the Burlington Northern Railroad bridge which is located just upstream from the State Highway 139 bridge.
- 40.00 ftHomes in northeast Sumner begin to flood.
- 37.00 ftState Highway 139 floods a half mile east of Sumner.
- 28.00 ftRural roads are under water.
- 26.00 ftRural land adjacent to the river is flooded.
- 23.00 ftBottomland 1 to 2 miles south of the gage begins to flood.
Flood outlook
Chance of flooding, September to November
| Category | Chance |
|---|---|
| Minor flooding | 49% |
| Moderate flooding | 45% |
| Major flooding | 7% |
The three-month chances are the River Forecast Centers’ long-range flood outlook, issued August 26, 2026.
Crest history
315 crests on NOAA’s list since 1909.
| # | Date | Stage |
|---|---|---|
| 1 | July 10, 1993 | 42.52 ft |
| 2 | May 30, 2019 | 41.35 ft |
| 3 | June 28, 2008 | 40.02 ft |
| 4 | May 10, 2007 | 39.97 ft |
| 5 | May 13, 2002 | 39.57 ft |
| 6 | June 8, 1947 | 39.50 ft |
| 7 | September 15, 2008 | 39.20 ft |
| 8 | May 29, 1996 | 39.15 ft |
| 9 | May 15, 2010 | 39.11 ft |
| 10 | April 20, 2013 | 39.09 ft |
| 11 | October 12, 2018 | 38.87 ft |
| 12 | June 9, 2010 | 38.85 ft |
| 13 | May 19, 1995 | 38.80 ft |
| 14 | May 30, 2013 | 38.78 ft |
| 15 | October 7, 1998 | 38.56 ft |
| 16 | September 12, 2014 | 38.53 ft |
| 17 | June 7, 2001 | 38.50 ft |
| 18 | March 28, 1973 | 38.40 ft |
| 19 | April 7, 2017 | 38.23 ft |
| 20 | June 16, 1967 | 37.80 ft |
| 21 | June 11, 1984 | 37.68 ft |
| 22 | May 18, 2009 | 37.36 ft |
| 23 | October 13, 1985 | 37.20 ft |
| 24 | April 1, 1960 | 37.20 ft |
| 25 | December 16, 2015 | 37.16 ft |
Most recent crests
- June 13, 2026: 37.13 ft
- June 7, 2026: 32.05 ft
- May 20, 2026: 37.04 ft
- April 28, 2026: 29.87 ft
- July 27, 2025: 32.60 ft
- June 26, 2025: 32.20 ft
- May 21, 2025: 27.11 ft
- February 1, 2025: 27.46 ft
- May 15, 2024: 29.52 ft
- May 8, 2024: 30.84 ft
Nearby
Upstream, downstream and the gauges around this one.
What this means
Forecasts by the Missouri Basin River Forecast Center. Forecasts are issued as needed during times of high water, but are not routinely available. Stage may be affected by ice. River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time. River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.
Sources
Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.