Flood Forecasting and Warning Program

Information about the Flood Forecasting and Warning Program, which prepares provincial and local authorities in the event of a flood.

Current flood information

Flood information updated as of: August 16, 2019 - 08:52 am

Ontario flood map


Locally issued flood messages

Issued by MNRF Districts and Conservation Authorities

MNRF Districts

None

Conservation Authorities

River Regulatory Agencies

Provincial flood messages

Issued to Local Authorities by the Surface Water Monitoring Centre

 

MNRF Districts

None

Conservation Authorities

None

MNRF Southern Region

Water levels and flows across the region are within seasonal values and ranges.

Forecast rainfall over the next five days ranges from 10 to 30 mm. Amounts will be higher where thunderstorms develop.

Great Lakes water levels remain near or above all time high values. Given the above normal water levels on the Great Lakes, wind action and storm surge may pose additional risk at thresholds not normally considered a concern.

MNRF Northeastern Region

Water levels and flows across the region are within seasonal values and ranges.

Forecast rainfall over the next five days ranges from 10 to 30 mm mm. Amounts will be higher where thunderstorms develop.

Great Lakes water levels remain near or above all time high values. Given the above normal water levels on the Great Lakes, wind action and storm surge may pose additional risk at thresholds not normally considered a concern.

MNRF Northwestern Region

Water levels and flows remain in the seasonal range for most of the region.

Forecast rainfall over the next five days ranges from 10 to 30 mm. Amounts will be higher where thunderstorms develop.

Great Lakes water levels remain near or above all time high values. Given the above normal water levels on the Great Lakes, wind action and storm surge may pose additional risk at thresholds not normally considered a concern.

Flood Message Definitions

Provincial flood messages

There are 2 types of provincial flood messages:

  • the Provincial Flood Watch, which provides consistent and timely technical information about the potential for flooding
  • the Provincial Watershed Conditions Statement, which provides information on provincial watershed conditions as they relate to flood potential, and an outlook on expected spring flood conditions

Local flood messages

There are 3 types of local flood messages:

  • flood warning: flooding is imminent or already occurring
  • flood watch: there is the potential for flooding
  • watershed conditions statements: flood Outlook (an early notice of the potential for flooding based on heavy rain, snow melt etc.) and water safety information.

Who to contact for flood information

Your local Conservation Authority is responsible for local flood messaging.

Your local municipality is responsible for on-the-ground flood response.

If you live in a community that is not serviced by a conservation authority, any flood watches or flood warnings in your area are issued by the nearest Ministry of Natural Resources and Forestry district office.

 

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Updated: May 16, 2019