Latest Water Level News

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TSW Releases Drawdown Forecast September 15 2025

Check your lakes for the forecast. The values are for some lakes are approaching the average mark while others continue in the below average trend. 

Flow reductions on the Gull River

Trent-Severn Waterway National Historic Site

September 12, 2025 – Haliburton, Ontario – Parks Canada is advising the public that flow reductions are currently taking place on the Gull River between Moore Lake (Elliot Falls Dam) and Coboconk Dam. These reductions are being carried out to conduct maintenance work at the control structures.

As […]

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TSW Releases Drawdown Forecast September 8 2025

The march to winter set continues and many lakes are still ahead of where we normally are. Just over a month until the end of the drawdown season. 

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TSW Releases Drawdown Forecast September 2 2025

As the drawdown is continuing on most reservoirs to maintain minimum flows downstream, the conditions on most lakes remain from 2 to 4 weeks ahead of the normal date for current levels.

UPDATED LOW WATER LEVEL ADVISORY

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Further to the CEWF alert of August 19th, the latest TSW 2-week drawdown forecast puts our lakes at 2 to 4 weeks ahead of a ‘normal’ year, with the drawdown continuing.

This means we are currently experiencing water levels similar to what we would usually see in mid to late September.  

Shallow passages, […]

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TSW Releases Drawdown Forecast August 25 2025

The lower than normal lake levels continue. As we round out the summer we would like to remind everybody that the lower lake levels could affect your boat launches and docks. Take this information in to account when deciding when to take boats and docks […]