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Advanced Hydrologic Prediction Service
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This probabilistic forecast is issued by the North Central River Forecast Center.
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About this graph
Forecasts for the Snake River (NW MN) at Alvarado are issued as needed during times of high water, but are not routinely available.
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Upstream Gauge - above Warren Upstream Gauge Downstream Gauge Downstream Gauge - at Drayton
Zoom Level:14
Flood Categories (in feet)
Major Flood Stage: 110
Moderate Flood Stage: 108
Flood Stage: 106
Action Stage: 105
Low Stage (in feet): -9999

Historic Crests
(1) 110.88 ft on 04/20/1997
(2) 110.84 ft on 04/20/1979
(3) 110.75 ft on 04/04/2006
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(P): Preliminary values subject to further review.

Recent Crests
(1) 109.80 ft on 05/15/2022 (P)
(2) 101.14 ft on 05/20/2021 (P)
(3) 110.05 ft on 04/11/2020 (P)
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
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Gauge LocationGauge Map Marker
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
116 Water level reaches First Avenue.
114.6 Top of the levee elevation at gage (814.84 ft).
114 Water level reaches Highway 1.
113 Highway 220 is overtopped south of Alvarado. Sandbagging begins on South Road.
112.5 Water levels reach East Railroad.
112 Water levels reach West Railroad.
111 Flooding begins in unprotected areas of Alvarado.
110 MAJOR FLOOD STAGE. Flooding between Hwy 1 and railroad grade due to backwater. Inspections of the dike begin.
108 MODERATE FLOOD STAGE. Overland flooding of local agricultural land.
106 MINOR FLOOD STAGE. Storm sewer flood gates are closed.
104 Gatewell "B" elevation (804.24 ft).
103 Gatewell "A" elevation (803.24 ft).
93.36 Channel bottom (793.6 ft).

Other Real-time and/or Archive Data Sources:

Additional Information Collapse
Collaborative Agencies Collapse
The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
Eastern North Dakota/Grand Forks Weather Forecast Office
4797 Technology Circle
Grand Forks, ND 58203
(701) 772-0720
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Page last modified: 2-Nov-2020 7:29 PM
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