Lake Ontario water level breaks new record

According to the International Joint Commission, Lake Ontario has reached a record 75.90 m (249.02 ft), exceeding the previous record peak of 75.88 m (248.95 ft), which was set in 2017. The Commission says Lake Ontario water levels will continue rising gradually over the month of June, but is expected to reach this year’s peak within a few weeks. 

The Commission says that the amount of additional rise will be driven mainly by how much precipitation falls across the basin, with an additional 2 to 8 cm (0.8 to 3.1 inches) forecast under the most likely scenarios. 

Periods of localized, higher levels are possible during storms and wind events, a number of which have been observed recently.

To better understand impacts, members from the International Lake Ontario – St. Lawrence River Board and Commissioners from the International Joint Commission have been touring, and will continue to tour the affected areas while conducting reviews with local elected officials.

Outflows from Lake Ontario, intended to slow water levels from rising, continue to be increased as rapidly as conditions allow.  Ottawa River flows have been declining slowly, but remain very high.  The Ottawa River discharges into the St. Lawrence River and combines with the water released from Lake Ontario near Montreal. This is causing high levels in the lower St. Lawrence River, where many areas have been flooded since April. 

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7 thoughts on “Lake Ontario water level breaks new record

  • June 16, 2019 at 9:54 pm
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    just open up the dam, stop the ships and fix this problem, I had enough of this

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    • June 18, 2019 at 10:14 am
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      Yes! Why isn’t anyone talking about this?!

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  • June 17, 2019 at 12:17 pm
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    Didn’t the governor of new York threaten to sue you guys? Open the dam already, stop trying to play God!

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  • June 18, 2019 at 9:15 am
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    If they open the dam the negative effect downstream would far outweigh the positive effect along Lake Ontario. Montreal would be flooded.

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  • June 18, 2019 at 5:32 pm
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    It’s obvious that the person controlling the water levels does not live on or near the shore of Lake Ontario…

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  • June 19, 2019 at 12:45 pm
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    In future, we have to start lowering the Lake Ontario water level in September, and not wait until March.
    Let’s be prepared for extra water in the lake.

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  • June 20, 2019 at 9:29 am
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    water runs down hill and Montreal is at the bottom, and less of them then us on lake Ontario

    Reply

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