Watershed Conditions - Flood Outlook

Flood Outlook
The water level in Lake Simcoe is above average for this time of year.  There is an increased potential for flooding of low-lying lands adjacent to the lake.   The risk of flooding may be increased in localized areas due to wave action from winds acting on the shoreline.  The above average water levels combined with wave action have the potential to cause increased shoreline erosion which may lead to unstable shorelines.   
The high lake levels may impact the dykes in the polder areas.  Polders are low-lying lands adjacent to bodies of water and protected by dykes.
With the recent water conditions, residents are reminded of the following:
  • Be sure to check your sump pump regularly to ensure it is working properly.
  • If you do experience flooding in your basement, be minful of electrical hazards that may be present
  • Keep ditches, culverts, drains and catch basins free of any debris to prevent any possible flooding
  • To report road flooding, please call 905-476-4301
A summary of recent Lake Simcoe water levels can be found below: 
Date                  Lake Simcoe Water Level 
                         (metres above sea level)
June 21, 2017     219.18
June 26, 2017     219.23
June 30, 2017     219.24
July 2, 2017        219.24
July 3, 2017        219.23
Current Water Level:
July 4, 2017        219.23
The following table summarizes the weather forecast for the next four days including expected precipitation (Environment Canada):
Date     Weather Forecast
July 4, 2017 Sunny.  Becoming a mix of sun and cloud this afternoon.  High 25.
July 5, 2017   Sunny.  High 27.  Night: Cloudy periods.  Low 16.
July 6, 2017 Cloudy with 40 percent chance of showers.  High 26.  Night: Cloudy with 40 percent chance of showers.  Low 18.
July 7, 2017   A mix of sun and cloud with 30 percent chance of showers.  High 24.  Night: Cloudy with 30 percent chance of showers.  Low 14.

Based on the above forecast and lake level data, it is anticipated that the water level in Lake Simcoe is will decline over the next couple of days.

Please exercise extreme caution along the shoreline and supervise children under your care.

Contact Us

26557 Civic Centre Rd, RR 2
Keswick, ON  L4P 3G1

T: 905-476-4301 / 705-437-2210
F: 905-476-8100

Hours of Operation

Monday to Friday
8:30 a.m. to 4:30 p.m.