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.
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Current flood information
Flood information updated as of: September 25, 2017 - 9:30 am
Ontario flood map
Locally issued flood messages
Issued by MNRF Districts and Conservation Authorities
MNRF Districts
None
Conservation Authorities
- Cataraqui Region - Flood Watch for Lake Ontario / Upper St. Lawrence River - September 7, 2017
- Hamilton - Watershed Conditions Statement – Flood Outlook - July 31, 2017
- Lower Trent - Flood Watch for Lake Ontario / Bay of Quinte
River Regulatory Agencies
- Drier conditions, record-high outflows starting to bring relieve to Lake Ontario - September 7, 2017
Provincial Message
Issued to Local Authorities by the Surface Water Monitoring Centre
MNRF Districts
Chapleau, Cochrane, Dryden, Fort Frances, Hearst, Kenora, Kirkland Lake, Nipigon, Red Lake, Sioux Lookout, Thunder Bay, Timmins, Wawa
Conservation Authorities
Lakehead Region, Mattagami Region
MNRF Southern Region
Stream flow conditions across the region are within the seasonal range. The five day forecast calls for 0-25mm of rain across the region.
MNRF Northeastern Region
Stream flow conditions across the region within the seasonal range. The five day forecast calls for 0-50mm of rain across the region.
Moderate thunderstorms may develop on Monday and Tuesday, which could contribute an additional 25 mm per day over the region.
MNRF Northwestern Region
Stream flow conditions across the region are within the seasonal range. The five day forecast calls for some very wet weather in the range of 10-30mm for the region.
Moderate thunderstorms may develop on Monday and Tuesday, which could contribute an additional 25 mm per day over the southern portions of the region.
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.
