The Lake Simcoe Region Conservation Authority advises that the water levels in Lake Simcoe are approaching 219.2 m and are higher than average for this time of year and are expected to continue rising.
Forecasts are predicting approximately 50 mm of rain over the next 5 days for the Lake Simcoe region. Current winds are northwest at 17 km/hr with gusts up to 27 km/hr. Winds are forecast to shift to southwest on Sunday with speeds of 36 km/hr and gusts up to 59 km/hr, increasing the risk of storm surge along the northeast shoreline.
Rainfall combined with flows working through the system continues to drive lake levels upward. These higher-than-average water levels are posing a significant risk of flooding along the Lake Simcoe shoreline. Flooding has been reported in some localized low-lying areas, including the Jackson’s Point and Ramara areas. There is a high risk of dike failures in the Keswick, Kolbar and Bradford polders. Depending on wind conditions, there may be localized storm surge/seiche effects, leading to increased flooding.
Given the anticipated rainfall over the next 5 days and current saturated conditions within the watershed, the water levels in Lake Simcoe are expected to rise further in the coming days.
Lake Simcoe Water Level
Currently the lake level is approximately 4 centimetres higher than the average annual high-water level. The current water level in Lake Simcoe is 219.19 m and is expected to increase.
The following is a summary of the recent water levels on Lake Simcoe:
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April 10, 2026 (Current): 219.19 m
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April 8, 2026: 219.19 m
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March 31, 2026: 219.06 m
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March 5, 2026: 218.75 m
Water Safety
Please exercise extreme caution around all bodies of water. Please alert any children under your care to stay away from all watercourses and other bodies of water; and supervise their activities.
Residents, especially in the historically flood-prone areas, are advised to take necessary precautions to protect themselves, their pets, and their property.
This Shoreline Hazard Watch – High Risk will be in effect through April 24th, 2026, or until otherwise updated. This statement replaces the April 2nd, 2026, statement due to expire on April 16th, 2026.