The Lake Mississippi 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.

 

The following 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:  this is the data used to compile the above chart, updated to 2017, provided in tabular and chart format.

 

Notes for 2017

16 Oct 17    Levels are down to 133.97 MASL; approaching the minimum target level for this time of year.

9 Oct 17      Levels have dropped to just below normal; now at 134.04 MASL

2 Oct 17      Levels have dropped to normal for this time of year; now at 134.08 MASL

26 Sept 17  Levels are still dropping; now at 134.11 MASL

18 Sept 17  Levels are still slowly dropping; now at 134.14 MASL

11 Sept 17  Levels are down a tad; now at 134.15 MASL

4 Sept 17    Levels continue to drop; now at 134.17 MASL

28 Aug 17   Levels continue to drop; now at 134.24 MASL

21 Aug 17   Levels are up a tad, now at 134.27 MASL

14 Aug 17   Levels continue to drop; now at 134.25 MASL.

8 Aug 17     MVCA has issued a Flood Watch Termination. 

7 Aug 17     Levels have dropped to 134.30 MASL, getting closer to normal.

31 July 17   Levels are higher after all the rain last week, but have started to drop again, now at 134.46 MASL.

28 July 17   MVCA has issued a Flood Watch Update for Dalhousie Lake

24 July 17   Levels have dropped to 134.42 MASL. Let's hope we don't get all the rain predicted!

17 July 17   Levels peaked (again) July 15 and have started to drop; now at 134.55 MASL

12 July 17   MVCA issued a Flood Watch for Little Marble Lake and Dalhousie Lake

10 July 17   More rain and higher levels; up to 134.51 MASL. When will it end? 

                    MVCA issued a High Water Statement on 2 July 2017, and a 10 Jul 2017 update.

3 July 17     Just when everything was getting to normal conditions, we have had significant rainfall which has raised levels to 134.43 MASL.

26 June 17  Lake levels are close to average for this time of year, now at 134.29 MASL

19 June 17  Lake levels are slowly decreasing; now at 134.32 MASL.

12 June 17  Lake levels are holding steady at 134.47 MASL.

5 June 17    Lake levels are up a tad after all the rain; now at 134.47 MASL.

29 May 17   Lake Levels are still dropping, now at 134.45 MASL

22 May 17   Lake levels are still dropping, now at 134.75 MASL.

15 May 17   MVCA has issued a Flood Warning Termination, but advises that water levels will remain high for the next 7-10 days.

15 May 17  Levels peaked at 135.28 MASL on May 12 and have now dropped to 135.22 MASL. I have had many inquiries about how this compares

                   with previous years, so I have added a box (upper right) indicating this year's 2 peaks and peaks for the the 3 previous years with

                   higher levels.

12 May 17  MVCA has issued Flood Warning #3

9 May 17    MVCA has issued Flood Warning #2, quote: "Water levels on Mississippi Lake continue to climb and are expected to increase

                    another 10 to 20 cm before leveling off on Friday."

8 May 17   Water levels are up significantly, now at 134.97 MASL

7 May 17   MVCA has issued Flood Warning Update #1

6 May 17   MVCA has issued a Flood Warning as a result of continued significant rain fall.

2 May 17   MVCA has issued a Flood Outlook as a result of significant recent rainfall

1 May 17   Water levels are still dropping; now at 134.59 MASL.

25 Apr 17  View the MVCA Flood Watch Termination, issued 25 Apr 17

24 Apr 17  Water levels have dropped significantly, now at 134.83 MASL.

18 Apr 17   MVCA Flood Watch #4, quote: "Levels on Mississippi Lake are expected to continue to decline through the week"

17 Apr 17  Water levels peaked at 135.15 MASL on April 13; have now dropped to 135.11 MASL.

12 Apr 17   MVCA Flood Watch #3, quote:  Water levels on Dalhousie and Mississippi Lake could increase by 10 to 15 cm over the weekend.

10 Apr 17  Levels are still rising and should peak in a few days; now at 135.03 MASL.

3 Apr 17     Levels are rising agin; now at 134.47 MASL.

27 Mar 17  Levels continue to drop, now at 134.39 MASL.

20 Mar 17  Levels have dropped to 134.47 MASL; not too surprising with the colder weather.

13 Mar 17  Levels are still rising, now at 134.65 MASL

6 Mar 17    Levels are rising rapidly, now at 134.59 MASL

27 Feb 17  Levels are rising due to recent rainfall; now at 134.32 MASL

21 Feb 17  Levels are holding at 134.22 MASL

6 Feb 17    Levels have dropped a bit to 134.17 MASL and are now in the target zone

23 Jan 17  Levels are holding at 134.27 MASL. MVCA has declared end of drought

16 Jan 17  Levels are now up to 134.28 MASL

9 Jan 17    All the recent precipitation has helped raise lake levels to 134.17 MASL

6 Jan 17     Lake levels have increased to 134.1 MASL

5 Jan 17     Watershed conditions have improved to Level I / Minor Drought levels. 

                  View the latest MVCA Low Water Update #11, issued 5 Jan 2017. 

 

 

 

 

 

 

 

 

 

 

Notes for 2016

27 Dec 16   Levels are holding at 134.05 MASL. Happy New Year everyone.

19 Dec 16    Levels have stabilized at 134.05 MASL. Merry Christmas everyone and all the best in the New Year.

12 Dec 16   Levels are up to 134.05 MASL, the highest the lake has been since mid-June

5 Dec 16     Levels are up to 134.02 MASL due to recent rain and snow

21 Nov 16   Levels are up a tad to 133.99 MASL

14 Nov 16    Levels have dropped to 133.96 MASL

7 Nov 16     Levels have dropped to 133.97 MASL

2 Nov 16     Levels are back down to 133.98 MASL 

                         The SEVERE DROUGHT continues.  View MVCA Low Water Update #8, issued 2 Nov 16.   

24 Oct 16    Levels are up to 134.0 MASL due to all the rain this weekend

17 Oct 16    Levels are down to 133.96 MASL

         Level III / SEVERE Drought conditions DEEPEN - View MVCA Low Water Update #7, issued 17 Oct 16.

10 Oct 16    Levels holding at 133.98 MASL

3 Oct 16      Levels holding at 133.98 MASL

29 Sep 16    We're still in SEVERE DROUGHT conditions.  View MVCA Low Water Update #6, issued 29 Sep 16.     

20 Sep 16    Levels up a bit to 133.98 MASL.

14 Sep 16    The SEVERE DROUGHT CONTINUES.   View MVCA Low Water Update #5, issued 14 Sep 16 

12 Sep 16    Levels up a tad to 133.97 MASL.

5 Sep 16      Levels have dropped to 133.96 MASL

29 Aug 16    Levels have dropped back to 133.98 MASL.

29 Aug 16    The drought continues, despite recent rainfall.  View the latest MVCA Statement, Low Water Update #4, issued 25 Aug 16.

22 Aug 16    All the rain has helped get levels up to 134.01 MASL

16 Aug 16    Levels are up a bit to 134.0 MASL

11 Aug 16    View the latest MVCA Watersheds Statement regarding SEVERE DROUGHT conditions

8 Aug 16      Levels are holding at 133.97 MASL

2 Aug 16      Levels are holding at 133.97 MASL

26 July 16    View the latest MVCA Watershed Statement, issued 26 July, regarding the current drought.

25 July 16    Levels are back down to 133.97 MASL.

18 July 16    Levels are up a bit more.

11 July 16    For the 1st time this season water levels are up a tad (1 cm)

4 July 16      Water levels down a tad

30 June 16   Drought conditions persist.  We need rain !  View the latest MVCA Watersheds Statement, issued 30 June.

27 June 16   Levels have dropped below historical levels for this time of year.

20 June 16   Levels have dropped to near historical lows. With little rain in the forecast, the situation will get worse before it gets better.

     Please consult the latest MVCA Watersheds Statement regarding the current Drought Conditions

13 June 16   Levels are still dropping; not enough rain to help and little rain in the forecast. We need a lot of rain to bring levels back to normal.

6 June 16     Levels are near historic lows for this time of year. The rain yesterday should help bring levels up

30 May 16    Levels are still dropping and are well below target levels. We need substantial rainfall to bring flows and levels up 

24 May 16    Levels are below average and almost down to last year's very low levels. Rain later this week should help.

16 May 16    Levels are below average but still above last year at this time

9 May 16      Levels are still dropping; we need rain!

2 May 16      Levels have dropped to the target range.

25 April 16   Levels and flows are dropping and are approaching target levels

18 April 16   Levels and flows are dropping

15 Apr 16     Flood watch termination

11 Apr 16     MVCA has issued update #3 to the Flood Watch

11 Apr 16     Lake Level peaked at 134.89 masl on April 7, 2016

7 Apr 16       MVCA has issued update #2 to the Flood Watch

5 Apr 16       MVCA has issued an update to the Flood Watch

4 Apr 16       MVCA has issued update #1 to the Flood Watch

3 Apr 16       MVCA has issued a Flood Watch for the Mississippi River system. 


 

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