Rivers in Oklahoma
Arkansas River at Ralston
Below flood stage
3.73ftStage
Observed Mon, Sep 21, 11:00 PM CDT
- Flood stage
- 16.00 ft
- Record crest
- 23.00 ft1923
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 21.00 ft |
| Moderate flood | 18.00 ft |
| Minor flood | 16.00 ft |
| Action | 16.00 ft |
- 24.00 ftvery severe flooding occurs. The Ralston sewage treatment plant levees may be overtopped when the stage reaches 24 feet. This is an extremely dangerous and life threatening situation.
- 22.00 ftsevere agricultural flooding occurs. Water levels are within 2 feet of topping the Ralston sewage treatment levees when the stage reaches 22 feet. This is a dangerous situation.
- 21.00 ftsevere agricultural flooding occurs. Water levels need to be patrolled as the levees around the Ralston sewage treatment plant are topped when the stage reaches 24 feet. This is a dangerous situation.
- 20.00 ftsevere agricultural flooding occurs. The levee around the Ralston sewage treatment plant may need to be patrolled.
- 18.00 ftmoderate inundation of farmlands occurs mainly along the north bank.
- 16.00 ftminor agricultural flooding occurs on the north bank.
Flood outlook
Chance of flooding, September to November
| Category | Chance |
|---|---|
| Minor flooding | 11% |
| Moderate flooding | 7% |
| Major flooding | Under 5% |
The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 21, 2026.
Crest history
195 crests on NOAA’s list since 1923.
| # | Date | Stage |
|---|---|---|
| 1 | June 11, 1923 | 23.00 ft |
| 2 | October 13, 1973 | 22.98 ft |
| 3 | April 25, 1944 | 22.82 ft |
| 4 | November 18, 1964 | 22.60 ft |
| 5 | November 15, 1964 | 22.60 ft |
| 6 | October 4, 1986 | 22.20 ft |
| 7 | May 23, 2019 | 22.14 ft |
| 8 | May 26, 2019 | 22.03 ft |
| 9 | May 25, 2019 | 21.99 ft |
| 10 | October 5, 1959 | 21.62 ft |
| 11 | July 3, 1951 | 21.45 ft |
| 12 | May 20, 1957 | 21.41 ft |
| 13 | May 8, 1961 | 21.22 ft |
| 14 | July 16, 1951 | 20.28 ft |
| 15 | July 1, 1957 | 19.88 ft |
| 16 | May 12, 1993 | 19.69 ft |
| 17 | April 19, 1945 | 19.55 ft |
| 18 | October 2, 1945 | 19.48 ft |
| 19 | March 12, 1973 | 19.41 ft |
| 20 | May 21, 2019 | 19.26 ft |
| 21 | May 20, 1951 | 19.23 ft |
| 22 | October 6, 1926 | 18.70 ft |
| 23 | November 5, 1974 | 18.62 ft |
| 24 | June 24, 1942 | 18.54 ft |
| 25 | April 16, 1947 | 18.50 ft |
Most recent crests
- June 25, 2026: 16.47 ft
- June 18, 2025: 16.50 ft
- June 9, 2025: 15.27 ft
- May 26, 2019: 22.03 ft
- May 25, 2019: 21.99 ft
- May 23, 2019: 22.14 ft
- May 21, 2019: 19.26 ft
- May 12, 2019: 17.93 ft
- October 12, 2018: 16.18 ft
- September 16, 2008: 16.39 ft
Nearby
Upstream, downstream and the gauges around this one.
What this means
Forecasts by the Arkansas-Red Basin RFC. Forecasts are issued as needed during times of high water, but are not routinely available. River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.
Sources
Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.