25' - Water levels reach the top of the emergency dike.
24' - Water overtops the levee downtown.
22' - Water levels reach the designed dike protection level.
20.77' - The water reaches the flood of record set in 1965.
20.5' - Railroad lines go under water.
17' - Some railroad lines may become inoperative.
16.6' - Lock and Dam 6 goes out of operation.
16' - Lock and Dam 5A goes out of operation.
13' - Prairie Island Park begins to flood. Pumping operations are underway by the city of Winona, and dike patrols are started.
12.5' - Spillway lot and Saint Charles Street boat launch is barricaded.
10.5' - Pumping stations are put into operation along Washington, Kansas, and High Forest streets.
10' - Olmstead Street Pumping Station is put into operation.
9' - East Riverfront Street along Levee Park is closed due to flooding.