| 25.0 | Widespread flooding occurs in low lying areas. The town of Portis and the bridge on Highway 281 are not threatened by flooding. A record flood of 28.5 feet occurred in July of 1951. | | 20.0 | Water floods agricultural lowlands. | | 15.0 | The southeast bank overflows into agricultural and pasture lowlands. Water rises over county road 362. |
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1) 30.41 ft on 07/12/1951
2) 25.71 ft on 05/25/2008
3) 23.43 ft on 07/21/1993
4) 23.00 ft on 05/29/1995
5) 22.95 ft on 08/16/1968
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Low water records are unavailable.
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