River Levels Streamgages Weather

Total streamflow across the Yakima River was last observed at 3,600 cfs, and is expected to yield approximately 7,141 acre-ft of water today; about 75% of normal. Average streamflow for this time of year is 4,773 cfs, with recent peaks last observed on 2011-05-18 when daily discharge volume was observed at 78,140 cfs.

Maximum discharge along the river is currently at the Yakima River At Umtanum reporting a streamflow rate of 3,600 cfs. However, the streamgauge with the highest stage along the river is the Yakima River Above Ahtanum Creek At Union Gap with a gauge stage of 41.29 ft. This river is monitored from 4 different streamgauging stations along the Yakima River, the highest being situated at an altitude of 1,338 ft, the Yakima River At Umtanum.

The Yakima River is a tributary of the Columbia River that flows through Washington State. It stretches for 214 miles and has a rich history, having been home to various Native American tribes for centuries. It is also a popular destination for fly-fishing enthusiasts, as it is home to a variety of fish species, including trout, salmon, and steelhead.

The river's hydrology has been impacted by human activity, including the construction of dams and reservoirs. The Yakima River Basin Storage Alliance has worked to create reservoirs and dams that provide irrigation water to farms and ranches in the region, while also helping to protect the river's ecosystem.

Some of the most notable reservoirs on the Yakima River include the Cle Elum Lake Reservoir and the Bumping Lake Reservoir. The Yakima River also supports a variety of recreational activities, including camping, hiking, and rafting.

July 20, 2024







Last Updated 2024-07-20
Discharge Volume 7,141 ACRE-FT
Streamflow 3,600.0 cfs
-20.0 cfs (-0.55%)
Percent of Normal 75.43%
Maximum 78,140.0 cfs
Seasonal Avg 4,773 cfs
Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Yakima River At Umtanum
USGS 12484500
3600 cfs 32.55 ft -0.55
Yakima River Above Ahtanum Creek At Union Gap
USGS 12500450
3110 cfs 41.29 ft -4.31
Yakima River At Mabton
USGS 12508990
1150 cfs 11.08 ft 6.48
Yakima River At Kiona
USGS 12510500
1280 cfs 3.46 ft 3.23

Regional Streamflow


Cubic Feet Per Second


Cubic Feet Per Second


Cubic Feet Per Second


Cubic Feet Per Second

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Historical River Levels

The Yakima River is a tributary of the Columbia River in south central and eastern Washington state, named for the indigenous Yakama people. The length of the river from headwaters to mouth is 214 miles (344 km), with an average drop of 9.85 feet per mile (1.866 m/km). It is the longest river entirely in Washington state.

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