YAKIMA − AT KIONA (KIOW1)
   State:  Washington
   County:  Yakima
   Latitude:  46 15' 11" North
   Longitude:  119 28' 37" West
   Elevation:  454 ft

   Supporting NWS Forecast Office: WFO Pendleton

   
Click for NWS Official River Forecasts for KIOW1

   Action Stage:  
11 ft
   Flood Stage:  
13 ft
   Moderate Flood Stage:  
14.5 ft
   Major Flood Stage:  
16 ft
Daily Historical Statistics for June 20, 2025
Mean Stage: 5.50 ft  Mean Flow: 4180 cfs
Max Stage: 12.47 ft  Max Flow: 16500 cfs (1974)
Min Stage:  2.47 ft   Min Flow: 546 cfs (1977)

Statistics based on water years: 1934-2023
* statistics estimated based on current rating

Record Stage: 
21.57 ft
Record Flow: 
67000 cfs
Date of Record: 
December 23, 1933

The 4-10 Day Trend Forecast is based on model guidance and uncertainty during this period is greater.

Hydrograph plot for KIOW1


For Data Used In Plot   "label


Hydrograph plot for KIOW1


For Data Used In Plot   "label