Yakima River at Kiona, WA
River level and flood forecast · Benton County
The river is 9.3 ft below flood stage (13 ft).
Forecast to fall to 3.3 ft by Mon, Oct 19, 11 PM.
Flow: 1,270 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Mon, Oct 12, 8:43 AM. Forecasts change as rain falls and as upstream water arrives.
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An email when the National Weather Service forecasts Yakima River at Kiona to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 16 ft |
| Moderate flood stage | 14.5 ft |
| Flood stage | 13 ft |
| Action stage | 11 ft |
| Record crest (December 23, 1933) | 21.57 ft |
What floods at each level
From the National Weather Service, highest first.
- 20 ftThere will be flooding of in the RV Park in Benton City along the river. There will extensive flooding in the West Richland area from Twin Bridge to the Columbia River, including the West Richland Golf Course and along Kingston...Hyde and Jones roads.
- 16 ftThere will be flooding of in the RV Park in Benton City along the river. There will extensive flooding in the West Richland area from Twin Bridge to the Columbia River, including the West Richland Golf Course and along Kingston...Hyde and Jones roads.
- 14.5 ftAt this level, there will be moderate flooding of farmland, roads and some residential areas...especially in the West Richland area.
- 13 ftThere will be minor flooding of pastures and roads adjacent to the river...especially in low lying areas of West Richland.
Highest crests on record
- 21.57 ft — December 23, 1933
- 20.98 ft — February 11, 1996
- 18.65 ft — January 18, 1974
- 17.2 ft — May 31, 1948
- 16.52 ft — December 6, 1975
Recent crests: 13.37 ft (March 23, 2026) · 16.16 ft (December 13, 2025) · 13.53 ft (February 18, 2016) · 14.71 ft (December 12, 2015) · 15.3 ft (May 18, 2011)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (KIOW1); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.