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Mississippi River below Lock and Dam 5a - Winona

Critical Stages
650' - Action
655' - Flood
659' - Moderate
661' - Major

Latest Observation

Updated: 2:15 AM CST 12/16/25

Status: No Flooding

Stage: 645.9 ft

Flow: 20 kcfs

Forecast

Forecast not available for this location.

TimeStage (ft)Flow (kcfs)
2:15 AM 12/16 645.9 20
2:00 AM 12/16 645.9 20
1:45 AM 12/16 645.9 20
1:30 AM 12/16 645.9 20
1:15 AM 12/16 645.9 20
1:00 AM 12/16 645.9 20
12:45 AM 12/16 645.9 20
12:30 AM 12/16 645.9 20
12:15 AM 12/16 645.9 20
12:00 AM 12/16 645.9 20
11:45 PM 12/15 645.9 20
11:30 PM 12/15 645.9 20
11:15 PM 12/15 645.9 20
11:00 PM 12/15 645.89 19.7
10:45 PM 12/15 645.9 20
10:30 PM 12/15 645.89 19.7
10:15 PM 12/15 645.89 19.7
10:00 PM 12/15 645.89 19.7
9:45 PM 12/15 645.89 19.7
9:30 PM 12/15 645.89 19.7
9:15 PM 12/15 645.89 19.7
9:00 PM 12/15 645.9 20
8:45 PM 12/15 645.89 19.7
8:30 PM 12/15 645.89 19.7
8:15 PM 12/15 645.89 19.7
8:00 PM 12/15 645.89 19.7
7:45 PM 12/15 645.89 19.7
7:30 PM 12/15 645.89 19.7
7:15 PM 12/15 645.89 19.7
7:00 PM 12/15 645.89 19.7
Hydrograph for Mississippi River below Lock and Dam 5a - Winona
664' - Water reaches the top of the protective earthen levee.
663.35' - Water levels reach the flood of record.
663' - Lock walls go underwater.
660' - Lock and dam 5A closes to navigation.
651' - Water begins to impact campsites along river upstream at Merrick State Park.
DateStage (ft)
Apr 19, 1965 663.35
Apr 17, 2001 661.95
Apr 11, 1997 661.6
Apr 19, 1969 661.37
Apr 26, 2023 660.51
Apr 20, 1952 659.9
Apr 18, 1951 659.26
Apr 3, 2019 658.75
Apr 6, 1967 658.69
Jun 26, 1993 658.28
Apr 7, 1986 658.24
Apr 15, 2011 658.17
May 7, 1954 658.13
May 2, 1975 658.06
Jul 2, 2024 657.63
Jul 2, 2014 657
Jun 22, 1943 656.7
May 25, 2019 656.55
Apr 25, 1996 656.34
Mar 20, 1973 656.08

Data provided by the National Weather Service.