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.

This 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 2018, provided in tabular and chart format.

Notes for 2019

7 Oct  19   Levels holding at 133.99 MASL.

30 Sep 19  Levels down a bit at 133.99 MASL.

24 Sep 19  Levels up a bit with the rain; now at 134.00 MASL.

19 Sep 19  Updated chart to correct formatting. Lake level now at 133.99 MASL

                  MVCA has issued a Level 1 Low Water Statement (Minor Drought)

16 Sep 19  the lake is at the minimum target level for this time of the year, at 134.00 MASL

12 Sep 19  Levels remain generally stable, now at 134.02 MASL

2 Sep 19    data not available

26 Aug 19  Levels are down slightly to 133.98 MASL

19 Aug 19 Levels are stable at 134.0 MASL.

12 Aug 19 Levels have stabilized, now at 134.0 MASL.

5 Aug 19   Levels are slightly lower, now at 133.99 MASL.

29 Jul 19  Levels are getting very low, now down to 134.0 MASL.

22 Jul 19  Levels are still dropping, now at 134.03 MASL.

15 Jul 19  Levels are still dropping, now at 134.07 MASL.

8 July 19  Levels are still dropping; now at 134.1 MASL.

2 July 19  Levels are a bit below average for the first time this summer at 134.16 MASL.

24 Jun 19 Levels have dropped a bit; now at 134.24 MASL

17 Jun 19 Due to all the rain last week, levels have decreased only slightly to 134.28 MASL

10 Jun 19 MVCA levels have not been updated today; yesterday's level was 134.30 MASL.

3 June 19  Levels are still dropping slowly; now at 134.39 MASL.

27 May 19 Levels are still dropping very slowly, now at 134.47 MASL.

21 May 19 Levels are slowly dropping, now at 134.59 MASL. They are still very high for this time of year.

17 May 19 MVCA has issued a High Water Update #1 statement

13 May 19 Levels are gradually dropping, now at 134.72 MASL

6 May 19   Levels have dropped to 135.1 MASL. This is pretty close to the peak level last year!

4 May 19   Levels have dropped significantly, now at 135.24 MASL.

3 May 19   MVCA has issued a Flood Warning Termination statement

29 Apr 19  The lake peaked April 25 at 135.66 MASL. Flows  and levels are decreasing and the level is now 135.54 MASL.

27 Apr 19   MVCA has issued Flood Waring Update #6 for the watetshed

23 Apr 19   MVCA has issued Flood Warning Update #3 for the watershed

22 Apr 19  Levels still rising but tapering off a bit; now at 135.49 MASL

21 Apr 19  MVCA has issued a Flood Warning Update #2 for the watershed

20 Apr 19  Levels are very high at 135.36 MASL. This is nearly as high as 2014 (135.42 MASL) but still much below the 1998 peak of 135.73 MASL

                  MVCA has issued a Flood Warning Update #1 for the watershed

17 Apr 19   MVCA has upgraded its flood watch to a Flood Warning for Mississippi Lake

15 Apr 19  Levels are up sharply, now at 134.83 MASL.

MVCA has issued a Flood Watch statement for Mississippi Lake

8 April 19  Levels continue to increase, now at 134.6 MASL.

5 Apr 19    MVCA has issued a Water Safety Update #3 statement

4 Apr 19    Levels and flows are rapidly increasing; Lake Level now at 134.38 MASL.

2 Apr 19    MVCA has issued another Water Safety Update statement

29 Mar 19  MVCA has issued a Water Safety Update #2 statement

25 Mar 19  Levels and flows are increasing. Lake level now at 134.18 MASL.

19 Mar 19  Levels holding at 134.09 MASL. The warmer weather got postponed to this week.

MVCA has issued a Flood Outlook Update statement, valid until 27 Mar 19.

11 Mar 19  Lake levels have dropped to 134.09 MASL. We can expect levels to start to rise with the milder weather later this week.

5 Mar 19    MVCA has issued a Flood Outlook Statement, valid until 18 Mar 19.

4 Mar 19    Lake Levels are stable at 134.13 MASL.

25 Feb 19  Levels are stable at 134.12 MASL.

18 Feb 19  Levels are stable at 134.13 MASL.

13 Feb 19  Lake levels up a tad at 134.13 MASL

4 Feb 19    Lake levels stable at 134.11 MASL

28 Jan 19  Lake levels are stable at 134.10 MASL.

21 Jan 19  Lake levels are now within the target limits at 134.12 MASL

14 Jan 19  Lake levels have dropped to 134.21 MASL.

11 Jan 19   MVCA has issued a Water Safety Statement regarding frazil ice, valid until 15 Jan 19

 7 Jan 19  Lake levels still high at 134.30 MASL.

 

 

Notes for 2018

31 Dec 18  Lake levels are still rising, up to 134.32 MASL.

27 Dec 18  Lake levels are up significantly after all the rain last week, now at 134.27 MASL.

17 Dec 18  Lake level is down a bit, now at 134.17 MASL.

10 Dec 18  Lake level is up to 134.19 MASL. Where was all this water when we needed it last summer?

03 Dec 18  Levels have risen sharply with all the rain and snow, now at 134.15 MASL

See MVCA Low Water Level Termination Notice

26 Nov 18  Levels have settled back to 134.01 MASL.

19 Nov 18  Levels rose with all the precipitation then settled back to 134.04 MASL.

5 Nov 18    Levels are up after all the rain; now at 134.04 MASL.

29 Oct 18   Levels are up a bit after the snow & rain; now at 133.99 MASL.

22 Oct 18   Levels have dropped to 133.98 MASL.

15 Oct 18   Levels up a bit after the rain last week; now at 134.01 MASL.

8 Oct  18    Levels down a bit to 133.99 MASL

1 Oct 18     Levels holding at 134.0 MASL

24 Sept 18 The rain brought levels up a bit; now at 134.0 MASL.

17 Sept 18 Levels are holding at 133.96 MASL.

10 Sept 18 Levels still dropping; now at 133.96 MASL.

4 Sept 18   Rain brought the lake up a few cm, but then it dropped back to 133.97 MASL.

27 Aug 18  Rain early in the week brought the lake up to 134.0 MASL, but then it dropped back down; now at 133.97 MASL.

20 Aug 18  Levels still dropping; now at 133.97 MASL.

15 Aug 18  MVCA Minor Drought Update #2 Statement

13 Aug 18  Levels are still dropping, now at 133.98 MASL.

8 Aug 18    Levels are dropping again, now at 133.99 MASL.

3 Aug 18    MVCA Minor Drought Update # 1 Statement

30 July 18  Lake levels recovered somewhat from all the rain last week but are dropping again. After peaking at 134.06 MASL on July 26, they have dropped to 134.01 MASL.

27 July 18  The recent rain has brought levels up a bit (134.06 MASL) but flows are still low and we still need rain.

26 Jul 18    MVCA has issued an Update #1 to their Low Water Advisory

23 July 18  Levels are still dropping and very near historical lows; now at 133.97 MASL.

16 July 18  Levels are still dropping, now at 134.01 MASL. 

9 July 18    Levels are still dropping, now at 134.04 MASL.

4 Jul 18      MVCA has issued a LOW WATER Advisory, effective until 16 Jul 2018.

2 July 18    Water level still dropping, now at 134.08 MASL. Did I say we need rain?

25 June 18 Water level still dropping, now at 134.12 MASL. We could use some rain!

18 June 18 Levels are a little below average for this time of year, now at 134.17 MASL

11 June 18 Levels are holding close to normal for this time of year, now at 134.22 MASL.

6 June 18   Levels are still dropping, although this rain will probably bring them up a bit. Now at 134.22 MASL.

28 May 18  Levels are still dropping; just a tad below average for this time of year at 134.29 MASL.

21 May 18  Levels are dropping; now in the target range at 134.46 MASL.

14 May 18  Lake levels are dropping, now at 134.65 MASL. This is still much higher than average for this time of year. 

11 May 18  MVCA has terminated its Flood Watch and Flood Warning for the watershed.

7 May 18    Mississippi Lake peaked on May 3 at 135.09 MASL. It has been dropping steadily since then but problems with the MVCA lake guage have prevented getting an updated level. I estimate the lake is about 134.96 MASL. ***Gauge is fixed, level now at 134.96 MASL.***

30 Apr 18   Levels are rising rapidly; now at 135.01 MASL. MVCA expects lake to increase to between 135.2 and 135.25 MASL over the next two days.

28 Apr 18   MVCA has issued a Flood Warning Update #1

23 Apr 18   Levels are rising quickly; now at 134.66 MASL

17 Apr 18   Levels are up a bit; now at 134.44 MASL.

09 Apr 18   Levels rising slowly; now at 134.42 MASL

03 Apr 18   Levels are rising, now at 134.36 MASL.

26 Mar 18  Levels have dropped a tad, now at 134.20 MASL.

19 Mar 18  Levels have dropped some more; now at 134.28 MASL.

12 Mar 18  Levels have dropped a bit, now at 134.40 MASL

7 Mar 18    Levels are rising, now at 134.45 MASL

26 Feb 18  With the rain and mild weather, levels are rising; now at 134.35 MASL

19 Feb 18  Levels are stable at 134.17 MASL.

05 Feb 18  Levels holding at 134.24 MASL

29 Jan 18  Levels are stable at 134.24 MASL.

23 Jan 18  Levels are up a tad; now at 134.26 MASL.

15 Jan 18  Levels have increased sharply after the thaw and rain last week; now at 134.23 MASL.

9 Jan 18    Levels have dropped a bit in the past 2 weeks, now at 134.11 MASL.

 

 

 

 

 

Notes for 2017

27 Dec 17  Levels still dropping, now at 134.19 MASL.

20 Dec 17  Levels are still dropping, now at 134.23 MASL.

12 Dec 17  Levels are still dropping, now at 134.30 MASL.

4 Dec 17    Levels now down to 134.33 MASL.

27 Nov 17  Water levels are still declining; now at 134.38 MASL.

20 Nov 17  Water levels are slowly declining; now at 134.44 MASL.

13 Nov 17  Water levels have peaked and are now slowly declining; now at 134.50 MASL.

6 Nov 17    Water levels have increased 51 cm (20") in the last 8 days, now at 134.46 MASL.

1 Nov 17    MVCA has issued a Watershed Conditions Statement regarding recent rainfall

30 Oct 17   Levels have increased significantly with all the rain; now at 134.06 MASL

23 Oct 17   Levels continue to drop; now at 133.92 MASL.

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. 

 

for 2016 and earlier water level data, please proceed to our ARCHIVE page

 

 

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