Snake River (NW MN) at Alvarado
Observed Wed, Sep 23, 12:30 PM CDT
- Flood stage
- 106.00 ft
- Record crest
- 110.88 ft1997
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 110.00 ft |
| Moderate flood | 108.00 ft |
| Minor flood | 106.00 ft |
| Action | 105.00 ft |
- 116.00 ftWater level reaches First Avenue.
- 114.60 ftTop of the levee elevation at gage (814.84 ft).
- 114.00 ftWater level reaches Highway 1.
- 113.00 ftHighway 220 is overtopped south of Alvarado. Sandbagging begins on South Road.
- 112.50 ftWater levels reach East Railroad.
- 112.00 ftWater levels reach West Railroad.
- 111.00 ftFlooding begins in unprotected areas of Alvarado.
- 110.00 ftMAJOR FLOOD STAGE. Flooding between Hwy 1 and railroad grade due to backwater. Inspections of the dike begin.
- 108.00 ftMODERATE FLOOD STAGE. Overland flooding of local agricultural land.
- 106.00 ftMINOR FLOOD STAGE. Storm sewer flood gates are closed.
- 105.00 ftACTION STAGE/FORECAST SERVICE STAGE.
- 104.00 ftGatewell "B" elevation (804.24 ft).
- 103.00 ftGatewell "A" elevation (803.24 ft).
- 93.36 ftChannel bottom (793.6 ft).
Flood outlook
Chance of flooding, September to November
| Category | Chance |
|---|---|
| Minor flooding | Under 5% |
| Moderate flooding | Under 5% |
| Major flooding | Under 5% |
The three-month chances are the River Forecast Centers’ long-range flood outlook, issued August 28, 2026.
Crest history
43 crests on NOAA’s list since 1945.
| # | Date | Stage |
|---|---|---|
| 1 | April 20, 1997 | 110.88 ft |
| 2 | April 20, 1979 | 110.84 ft |
| 3 | April 4, 2006 | 110.75 ft |
| 4 | March 1, 1966 | 110.34 ft |
| 5 | May 1, 1950 | 110.04 ft |
| 6 | March 1, 1969 | 109.94 ft |
| 7 | May 15, 2022 | 109.85 ft |
| 8 | April 11, 2020 | 109.84 ft |
| 9 | March 1, 1965 | 109.84 ft |
| 10 | October 14, 2019 | 109.68 ft |
| 11 | March 18, 2010 | 109.66 ft |
| 12 | August 26, 1999 | 109.64 ft |
| 13 | March 26, 2009 | 109.63 ft |
| 14 | April 23, 2018 | 109.61 ft |
| 15 | April 24, 1956 | 109.33 ft |
| 16 | April 25, 1956 | 109.29 ft |
| 17 | March 1, 1975 | 108.94 ft |
| 18 | March 9, 1983 | 108.84 ft |
| 19 | April 12, 1955 | 108.79 ft |
| 20 | April 12, 2019 | 108.54 ft |
| 21 | April 2, 2005 | 108.30 ft |
| 22 | March 27, 1987 | 107.84 ft |
| 23 | March 31, 1986 | 107.84 ft |
| 24 | April 19, 2023 | 107.65 ft |
| 25 | April 28, 2013 | 107.60 ft |
Most recent crests
- March 30, 2026: 106.57 ft
- April 30, 2025: 99.83 ft
- June 20, 2024: 105.24 ft
- April 19, 2023: 107.65 ft
- May 15, 2022: 109.85 ft
- May 20, 2021: 101.14 ft
- April 11, 2020: 109.84 ft
- October 14, 2019: 109.68 ft
- April 12, 2019: 108.54 ft
- April 23, 2018: 109.61 ft
Nearby
Upstream, downstream and the gauges around this one.
What this means
Forecasts by the North Central River Forecast Center. Forecasts are issued as needed during times of high water, but are not routinely available. 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. 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. Stage may be affected by ice during winter months.
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.