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: September 19, 2017 - 10:30 am
Ontario flood map
Locally issued flood messages
Issued by MNRF Districts and Conservation Authorities
- Cataraqui Region - Flood Watch for Lake Ontario / Upper St. Lawrence River - September 7, 2017 12:00 pm
- Hamilton Region - Watershed Conditions Statement – Flood Outlook - July 31, 2017
- Lower Trent - Flood Watch for Lake Ontario / Bay of Quinte - August 25, 2017 1:00 pm
- Quinte - Flood Watch for Lake Ontario / Bay of Quinte - September 5, 2017 9:30 am
River Regulatory Agencies
- Drier conditions, record-high outflows starting to bring relief to Lake Ontario - September 7, 2017
Issued to Local Authorities by the Surface Water Monitoring Centre
MNRF Southern Region
Stream flow conditions across the region are within the seasonal range. The three day forecast calls for 5-10mm of rain across the region.
Slow moving/ high moisture thunderstorms may produce additional precipitation in excess of 20mm today and tomorrow.
MNRF Northeastern Region
Stream flow conditions across the region are elevated from weekend precipitation. The five day forecast calls for 5-10mm of rain across the region.
MNRF Northwestern Region
Stream flow conditions across the region are within the seasonal range. The three day forecast calls for 20-30mm of rain across the region. Friday and Saturday are also forecast to recieve heavy precipitation, these amounts will be updated later in the week.
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.