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Weather Forecast Office Boise, ID

Northwest River Forecast Center

Hydrograph

River at a Glance

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About this graph

Tabular Data (UTC)

Tabular Data (MDT)

Datum: NGVD29

Metadata

NOTE: Forecasts for the Malheur River at Vale are issued routinely year-round.

Vertical datum height surveyed by the USGS

Return to Area Map

Upstream Gauge

Downstream Gauge

Flood Categories (in feet)

Major Flood Stage:	23
Moderate Flood Stage:	21
Flood Stage:	19.5
Action Stage:	19
Low Stage (in feet):	-9999

Historic Crests
(1) 24.58 ft on 02/24/1957
(2) 23.80 ft on 02/22/1982
(3) 23.31 ft on 03/19/1993
(4) 22.58 ft on 01/18/2011
(5) 22.05 ft on 01/01/2006
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 16.52 ft on 03/25/2019 (P)
(2) 11.52 ft on 09/03/2018
(3) 11.55 ft on 10/20/2017
(4) 21.23 ft on 02/22/2017
(5) 18.56 ft on 02/16/2016
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.

Show FEMA's National Flood Hazard Layers

Zoom Level:14

	Gauge Location	Disclaimer
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

If you notice any errors in the below information, please contact our Webmaster
24	The river level will be about three feet from overtopping the levee which protects the city of Vale from major flooding. Even though there is still approximately three feet between the surface of the river and the top of the levee, any rise above 24 feet will exceed the safe design capacity of the levee. Major flooding of other areas within the 100 year flood plain between Harper and Ontario is likely.
23	Water may begin flowing over Highway 20 near Harper. Numerous roads crossing the river between Harper and Ontario will be flooded with water entering houses near the 36th Street Bridge in Ontario. Foothill and Lagoon Drive near Vale may flood if Willow Creek is running high. Extensive inundation of farmland will occur between Harper and Ontario.
22	Extensive flooding of farmland between Harper and Ontario will occur. Numerous roads near the river will be flooded including Harper Bridge Road near Harper, Airport Road and Russel Road near Vale, Butte Drive between Vale and Ontario, and the 36th Street Bridge area just upstream from Ontario including Malheur Drive. Some houses may be surrounded by water. The river crest will take about 12 hours to move downstream from Harper to Vale, and another 8 hours to move from Vale to Ontario.
21	Flood waters will rise above low spots on Copeland Road near Harper. Butte Drive will be flooded with water greater than 1 foot deep. Flood waters will cover portions of Airport Road and Russel Road southwest of Vale. The area near the 36th Street Bridge upstream from Ontario will flood with water flowing over low spots on Malheur Drive. Debris damming on the 36th Street Bridge may be a problem.
20.5	Flooding of some county roads near the river will occur, including Westfall Road near Harper.
19.5	The river will begin spilling over its bank flooding farmland between Vale and Ontario. Water will begin approaching low spots on Butte Drive. Water will approach the 36th Street Bridge upstream from Ontario about 8 hours after flood stage is exceeded near Vale.
Photos (1) VALO3 gauge equipment. (2) Cross channel view from right bank. (3) Downstream view from gauge. (4) Upstream view from gauge. (5) Upstream view toward Nevada Canal diversion.

About This Location

Latitude: 43.987500° N, Longitude: 117.218889° W, Horizontal Datum: NAD83/WGS84

River Stage Reference Frame	Gauge Height	Flood Stage	Uses
NWS stage	0 ft	19.5 ft	Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum	Elevation (gauge height = 0)	Elevation (gauge height = flood stage)	Elevation information source
NAVD88	Not Available	Not Available	Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29	2220 ft	2239.5 ft	Older USGS topographic maps, NGVD29 benchmarks
MSL	Not Available	Not Available	Older USGS topographic maps, MSL benchmarks
Other	Not Available	Not Available

Current/Historical Observations:

U.S. Geological Survey (USGS) Data and Site Info for Vale

Additional Information

The vertical datum for this gauge was lowered 10 feet on February 12, 2015 to avoid negative gauge heights.

Resources

Hydrologic Resources

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Collaborative Agencies

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
Boise Weather Forecast Office
NIFC Building 3807
Boise, ID 83705-5354
(208) 334-9860
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Page last modified: 1-Mar-2019 12:33 AM

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