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Snake River (NW MN) at Alvarado

Highest listed crest 110.88 ftFlood stage 106.0 ft36 crests since 1945

The Snake River (NW MN) at Alvarado crested at major flood stage 5 times among the 36 crests the National Weather Service lists from 1945 to 2026. The highest, 110.88 ft on April 20, 1997, was major flooding, 4.88 feet above flood stage.

The gauge

Highest listed crest
110.88 ft
April 20, 1997
Flood stage
106.0 ft
Major flooding from 110.0 ft
Crests at major
5
29th of 120 gauges in Minnesota
Most recent flood crest
March 30, 2026
106.57 ft, minor flooding
Location
Marshall County
Minnesota

Flood stages

The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.

Flood categories, Snake River (NW MN) at Alvarado
Action stage105.02Jun 20, 2024The level at which the NWS or its partners begin to take action
Flood stage (minor)106.07Mar 30, 2026Minimal or no property damage, but possibly some public threat
Moderate flood stage108.014May 15, 2022Some inundation of structures and roads near the stream
Major flood stage110.05Apr 4, 2006Extensive inundation of structures and roads

Every listed crest

36 crests from 1945 to 2026. Filled: at or above flood stage. Hover a crest for its date and stage.

Listed crests at the Snake River (NW MN) at Alvarado, 1945 to 2026 020406080100120ft Flood stage 106.0 ftMajor 110.0 ft Mar 30, 1945: 10.72 ft, below flood stage; 642 cubic feet per secondMay 1, 1950: 110.04 ft, major flooding; 3,260 cubic feet per secondApr 14, 1954: 104.78 ft, below flood stage; 92 cubic feet per secondApr 12, 1955: 108.79 ft, moderate flooding; 330 cubic feet per secondApr 24, 1956: 109.33 ft, moderate floodingMar 1, 1965: 109.84 ft, moderate floodingMar 1, 1966: 110.34 ft, major floodingMar 1, 1969: 109.94 ft, moderate flooding; 5,550 cubic feet per secondMar 1, 1975: 108.94 ft, moderate flooding; 2,600 cubic feet per secondApr 20, 1979: 110.84 ft, major flooding; 3,410 cubic feet per secondApr 20, 1997: 110.88 ft, major floodingAug 26, 1999: 109.64 ft, moderate floodingFeb 29, 2000: 107.14 ft, minor floodingApr 2, 2005: 108.30 ft, moderate floodingApr 4, 2006: 110.75 ft, major floodingMar 29, 2007: 105.98 ft, action stageFeb 19, 2008: 104.50 ft, below flood stageMar 26, 2009: 109.63 ft, moderate floodingMar 18, 2010: 109.66 ft, moderate floodingMar 25, 2011: 106.33 ft, minor floodingMar 15, 2012: 103.85 ft, below flood stage; 500 cubic feet per secondApr 28, 2013: 107.60 ft, minor flooding; 1,120 cubic feet per secondApr 16, 2014: 106.30 ft, minor flooding; 900 cubic feet per secondMay 18, 2015: 101.57 ft, below flood stage; 345 cubic feet per secondJul 21, 2016: 104.10 ft, below flood stage; 590 cubic feet per secondMar 31, 2017: 106.10 ft, minor flooding; 779 cubic feet per secondApr 23, 2018: 109.61 ft, moderate floodingApr 12, 2019: 108.54 ft, moderate floodingOct 14, 2019: 109.68 ft, moderate floodingApr 11, 2020: 109.84 ft, moderate floodingMay 20, 2021: 101.14 ft, below flood stageMay 15, 2022: 109.85 ft, moderate flooding; 1,880 cubic feet per secondApr 19, 2023: 107.65 ft, minor flooding; 981 cubic feet per secondJun 20, 2024: 105.24 ft, action stageApr 30, 2025: 99.83 ft, below flood stageMar 30, 2026: 106.57 ft, minor flooding Highest, 110.88 ft, Apr 20, 1997 1960198020002020

Crests at or above flood stage, by decade

Crests at or above flood stage per decade, Snake River (NW MN) at Alvarado 1940s: 0 1950s: 3 1960s: 3 1970s: 2 1980s: 0 1990s: 2 2000s: 4 2010s: 8 8 2020s: 4 1940s1950s1960s1970s1980s1990s2000s2010s2020s
  1. These are the crests the local National Weather Service office lists for the gauge: the highest on record and recent crests. Lesser floods between them may be missing, so counts by decade are a floor.
  2. Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable.
  3. 3 crests measured on an earlier gauge datum are left out: 108.84 ft on Mar 9, 1983; 107.84 ft on Mar 31, 1986; 107.84 ft on Mar 27, 1987.

Highest crests

Highest listed crests, Snake River (NW MN) at Alvarado
1Apr 20, 1997110.88+4.88Major—
2Apr 20, 1979110.84+4.84Major3,410
3Apr 4, 2006110.75+4.75Major—
4Mar 1, 1966110.34+4.34Major—
5May 1, 1950110.04+4.04Major3,260
6Mar 1, 1969109.94+3.94Moderate5,550
7May 15, 2022109.85+3.85Moderate1,880
8Mar 1, 1965109.84+3.84Moderate—
9Apr 11, 2020109.84+3.84Moderate—
10Oct 14, 2019109.68+3.68Moderate—
11Mar 18, 2010109.66+3.66Moderate—
12Aug 26, 1999109.64+3.64Moderate—
13Mar 26, 2009109.63+3.63Moderate—
14Apr 23, 2018109.61+3.61Moderate—
15Apr 24, 1956109.33+3.33Moderate—
16Mar 1, 1975108.94+2.94Moderate2,600
17Apr 12, 1955108.79+2.79Moderate330
18Apr 12, 2019108.54+2.54Moderate—
19Apr 2, 2005108.30+2.30Moderate—
20Apr 19, 2023107.65+1.65Minor981
21Apr 28, 2013107.60+1.60Minor1,120
22Feb 29, 2000107.14+1.14Minor—
23Mar 30, 2026106.57+0.57Minor—
24Mar 25, 2011106.33+0.33Minor—
25Apr 16, 2014106.30+0.30Minor900
26Mar 31, 2017106.10+0.10Minor779
27Mar 29, 2007105.98−0.02Action—
28Jun 20, 2024105.24−0.76Action—
29Apr 14, 1954104.78−1.22Below flood stage92
30Feb 19, 2008104.50−1.50Below flood stage—
31Jul 21, 2016104.10−1.90Below flood stage590
32Mar 15, 2012103.85−2.15Below flood stage500
33May 18, 2015101.57−4.43Below flood stage345
34May 20, 2021101.14−4.86Below flood stage—
35Apr 30, 202599.83−6.17Below flood stage—
36Mar 30, 194510.72−95.28Below flood stage642

Gauges on the Snake River (NW MN)

In USGS station-number order, which runs downstream within a river basin.

Flood gauges on the Snake River (NW MN)
WarrenMN67.073.01 ft, May 13, 20220
Alvarado this gaugeMN106.0110.88 ft, Apr 20, 19975

Other gauges in Marshall County

Flood gauges in Marshall County
Oslo26.038.37 ft, Apr 1, 200918
Warren67.073.01 ft, May 13, 20220

Marshall County: every hazard · River floods across the country · Minnesota

NOAA National Water Prediction Service, gauge ALVM5, retrieved October 30, 2026. Stages in feet on the gauge's own datum, not elevation. Crests are as the National Weather Service lists them; preliminary values may be revised.