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Lake Simcoe Region Conservation Authority

Lake Simcoe Region Conservation Authority > Watershed Health > Flood Forecasting

Flood Forecasting & Warning

Flooded street.jpg

Lake Simcoe Region Conservation Authority (LSRCA) maintains a flood forecasting and warning system to provide early warning of possible risks to people and property from flooding.

We provide local municipalities, school boards, police, fire and the public with advance notice, information and advice so that they can respond to potential flooding and flood-related emergencies.

We use stream gauges, weather stations, snowpack measurements, weather forecasts and computer models to determine the potential for flooding. When spring melt or severe storms are anticipated, LSRCA estimates the severity, location and timing of possible flooding.

Follow us on Twitter @LSRCA for the latest flood information within the Lake Simcoe watershed.

Flood Level Bulletins - Definitions

Lake Simcoe Conservation Authority issues three levels of messages to advise municipalities and watershed residents of the potential threat to public safety or property damage.


Normal Conditions: No flood conditions exist.


Water Safety: High flows, unsafe banks, melting ice or other factors could be dangerous for recreational users such as anglers, canoeists, hikers, children, pets, etc. Flooding is not expected.


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

 

Flood Watch: Flooding is possible to occur in the near future in specific watercourses or municipalities. Municipalities, emergency services and individual landowners in flood-prone areas should prepare for possible flooding.

 

Flood Warning: Flooding is imminent or already occurring in specific watercourses or municipalities. Municipalities and individuals should take action to deal with flood conditions. This may include road closures and evacuations.