Walla Walla River near Touchet
Highest listed crest 20.58 ftFlood stage 13.0 ft15 crests since 1964
The Walla Walla River near Touchet crested at major flood stage 4 times among the 15 crests the National Weather Service lists from 1964 to 2026. The highest, 20.58 ft on February 10, 1996, was major flooding, 7.58 feet above flood stage.
The gauge
- Highest listed crest
- 20.58 ft
- February 10, 1996; 32,500 cubic feet per second
- Flood stage
- 13.0 ft
- Major flooding from 17.0 ft
- Crests at major
- 4
- 27th of 70 gauges in Washington
- Most recent flood crest
- March 15, 2026
- 15.79 ft, moderate flooding
Flood stages
The thresholds the National Weather Service uses for this gauge today, and how many listed crests reached each.
| Action stage | 10.0 | 0 | — |
| Flood stage (minor) | 13.0 | 8 | Dec 31, 2017 |
| Moderate flood stage | 15.0 | 3 | Mar 15, 2026 |
| Major flood stage | 17.0 | 4 | Feb 7, 2020 |
Every listed crest
15 crests from 1964 to 2026. Filled: at or above flood stage. Hover a crest for its date and stage.
Crests at or above flood stage, by decade
- These are the crests the local National Weather Service office lists for the gauge: the highest on record and recent crests. Lesser floods between them may be missing, so counts by decade are a floor.
- Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable.
Highest crests
| 1 | Feb 10, 1996 | 20.58 | +7.58 | Major |
| 2 | Feb 7, 2020 | 20.26 | +7.26 | Major |
| 3 | Dec 22, 1964 | 18.90 | +5.90 | Major |
| 4 | Jan 1, 1997 | 17.08 | +4.08 | Major |
| 5 | Mar 15, 2026 | 15.79 | +2.79 | Moderate |
| 6 | Feb 12, 1985 | 15.54 | +2.54 | Moderate |
| 7 | Apr 10, 2019 | 15.45 | +2.45 | Moderate |
| 8 | Feb 24, 1986 | 14.91 | +1.91 | Minor |
| 9 | Jan 9, 2009 | 14.87 | +1.87 | Minor |
| 10 | Dec 31, 2017 | 14.20 | +1.20 | Minor |
| 11 | Jan 6, 1969 | 14.07 | +1.07 | Minor |
| 12 | Jan 30, 1965 | 13.72 | +0.72 | Minor |
| 13 | Jan 17, 2011 | 13.60 | +0.60 | Minor |
| 14 | Feb 21, 1982 | 13.26 | +0.26 | Minor |
| 15 | May 5, 1993 | 13.00 | 0.00 | Minor |
Walla Walla County: every hazard · River floods across the country · Washington
NOAA National Water Prediction Service, gauge TCHW1, retrieved October 30, 2026. Stages in feet on the gauge's own datum, not elevation. Crests are as the National Weather Service lists them; preliminary values may be revised.