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Lake Simcoe Region Conservation Authority

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 Current Flood Status

Flood Outlook
Flood Outlook

Lake Simcoe Region Conservation Authority
120 Bayview Parkway, Newmarket, Ont., L3Y 3W3
Telephone: (905) 895-1281 Fax: (905) 853-5881

Issued to the following groups:

1) Municipalities and Local Conservation Authorities
2) School Boards and Police
3) Media
4)  LSRCA Board of Directors and all LSRCA Employees

Date: February 16, 2018
Time: 1:30 p.m.

The Lake Simcoe Region Conservation Authority advises that warmer weather accompanied by rainfall is expected to begin to move through the watershed on Sunday, February 18th.   This weather system is expected to bring temperatures well above seasonal values with daytime highs climbing towards +5 to +10C by Monday afternoon.   Rainfall amounts of 10-15 mm are predicted on Monday with an addition 10-15 mm of rainfall potential for both Tuesday and Wednesday. 

Currently, portions of the watershed have a considerable snow pack.   Due to the four day duration of the expected thaw, a significant reduction of this snow pack will occur.  The expected rainfall coupled with the amount of ice and snow in storm drainage systems will increase the potential for blockage and ice jams, especially in the vicinity of culverts and bridges.  This may result in localized flooding in some areas.

Also, warmer than normal temperatures will reduce or eliminate ice cover in our creeks and rivers, resulting in dangerous ice conditions.   Children and pets should be warned to stay away from all watercourses.

This Watershed Conditions Statement will be in effect through Friday, February 23rd, 2018.
For further information, please contact the following person at (905) 895-1281:

Marianne Maertens, P.Eng.
Duty Officer

Watershed Conditions Statement – Flood Outlook:  Early notice of the potential for flooding based on weather forecasts calling for heavy rain, snow melt, high wind or conditions that could lead to high runoff, cause ice jams, lakeshore flooding or erosion.