International Lake Ontario - St. Lawrence River Board

Lake Ontario Outflow Changes

 

Outflows from Lake Ontario are established on a weekly basis by the International Lake Ontario - St. Lawrence River Board in accordance with the current regulation plan and the International Joint Commission's Orders of Approval. The table below displays the outflow changes that have occurred this year. All flows are reported in cubic metres per second.

To view outflow change records from previous years, please use the links below:

Flow Changes - 2016

Flow Changes - 2015

Flow Changes - 2014

Flow Changes - 2013

Flow Changes - 2012

Flow Changes - 2011