| Flood Impacts |
| 30.0 | Union encounters widespread flooding at this level as well as a large expanse of the reach. |
| 29.0 | Highway 73/75 near the gage floods. The western part of Union near the railroad tracks (LaRue Street) begin to flood. Some basements of low lying homes and some industrial businesses along these tracks flood. |
| 28.0 | State Highway 34 west of Union floods. Upstream at Nehawka, flooding enters the town as well. |
| 27.0 | The overflow channel near the railroad tracks on the outskirts of Union fills. |
| 25.0 | A larger portion of the reach encounters addtional lowland flooding. |
| 23.0 | Minor lowland flooding begins. |
