Major Flood
39 ft
Current Water Level
Gage Height
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Streamflow
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Last Reading
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FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
38 ft
Minor Flood
35.5 ft
Action Stage
33.5 ft
What Floods at Each Level
39 ft
This will produce major flooding of residential and commercial areas, highways and pastures from Teanaway downstream to Ellensburg, especially in the town of Thorp.
38 ft
At this level, flooding of roads and pastures in the vicinity of the river will occur. The Ellensburg water supply pumphouse is threatened.
36.5 ft
There will be flooding in pastures along the river.
35.5 ft
At this level, there will be minor flooding in areas along the river from Teanaway to Ellensburg including Irene Rienhart Park in Ellensburg.
33.5 ft
At this stage, the river is near bankfull at Ellensburg. Lowland flooding is possible in the low areas along the river.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Nov 14, 1906 | 41.1 ft | 41,000 cfs |
| May 28, 1948 | 38.98 ft | 27,800 cfs |
| Feb 8, 1996 | 38.77 ft | 27,200 cfs |
About This Gauge
USGS Site
NWS LID
UMTW1
River
Yakima River
County
Kittitas, WA
Coordinates
46.8626°N, 120.4801°W
Get Flood Alerts for Yakima River
StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.
Frequently Asked Questions
What is the current water level of Yakima River at Umtanum?
The Yakima River at Umtanum gauge is maintained by USGS (site 12484500) and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for Yakima River at Umtanum?
The NWS-defined flood stage for Yakima River at Umtanum is 35.5 feet. Action stage begins at 33.5 feet. Moderate flooding starts at 38 feet, and major flooding at 39 feet.
How do I get alerts when Yakima River rises?
Download StormCast free on Google Play, go to River Gauges, and add Yakima River at Umtanum to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category.
Where is the Yakima River at Umtanum gauge located?
The gauge is located in Kittitas County, Washington at coordinates 46.8626°N, 120.4801°W. USGS site number: 12484500. Data is provided by the U.S. Geological Survey and the National Weather Service.
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Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey