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Lake Water Levels

The above chart provides a weekly 'snapshot' of water levels on Mississippi Lake.


During periods of rapid change in water levels (spring runoff or severe storms) the chart may be updated at more frequent intervals. Throughout most of the year, the levels should track within the target range (black lines). During the spring runoff, there is no target range due to the variability in timing of spring melt and ice conditions.  Through most of the summer we would expect to see a gradual decline in levels (within the target range).

Historical Data:  the above data is available in tabular and chart format for the years:

                              2016, 2017, and 2018

                              2019, 2020

The Mississippi Lake water level chart is produced by MLA, using information gathered by the Mississippi Valley Conservation Authority (MVCA).  Here are direct links to the MVCA website for additional information regarding the entire Mississippi River Watershed:


FLOOD WARNING information.  It is important to note that severe storms, with subsequent heavy rainfall, may result in fairly rapid increases in water levels.  Consult the MVCA for detailed information and guidance regarding flooding conditions;

Water Levels elsewhere in the Watershed. MVCA tracks lake levels and stream flow throughout the watershed. 


Mailing Lists to subscribe directly to MVCA for information regarding a variety of topics.

Notes for 2021

22 Feb 2021


15 Feb 2021


8 Feb 2021


1 Feb 2021


25 Jan 2021


18 Jan 2021


11 Jan 2021


4 Jan 2021


28 Dec 2020


21 Dec 2020


14 Dec 2020


7 Dec 2020


Level has dropped slightly to 134.08 MASL


Level has dropped to 134.09 MASL.


Level has dropped to 134.14 MASL.


Level has dropped to 134.19 MASL.


Level has dropped to 134.21 MASL.


Level has dropped to 134.25 MASL.


Level has dropped a bit; now at 134.33 MASL.


Level has come up some more with recent precipitation; now at 134.40 MASL.


Level has come up sharply with the recent rainfall; now at 134.33 MASL.


Level has dropped to 134.19 MASL.


Level has dropped a bit; now at 134.24 MASL.


Level is up sharply with all the precitation in the past week; now at 134.27 MASL.