Flood Forecasting and Warning System

One of the most important responsibilities of Conservation Authorities is to protect people and property from flooding. Information gathered from our system of streamflow gauges, snow courses and weather stations allows us to prepare water level and flow forecasts which are used to warn watershed residents of potential flooding.

See our Flood Resources for additional information from other reputable sites.

Current Advisories and Statements 

Notice of Flood Watch Cancellation-Mattagami River-June 4, 2019

MNR&F Flood Watch for Minisinakwa Lake and Gogama has been CANCELLED-May 31, 2019

Recent Advisories and Statements

Flood Watch for the Mattagami River-May 28, 2019

MNR&F Flood Watch extension for Minisinakwa Lake and Gogama (MNR&F Timmins District)-May 24, 2019

Flood Warning Update – Mattagami River-May 21, 2019

Flood Watch Cancelled – Porcupine Lake-May 14, 2019

Flood Warning Update – Mattagami River-May 14, 2019

Flood Warning -Mattagami River and Porcupine Lake-May 10, 2019

Flood Warning – Mattagami River and Porcupine Lake-May 3, 2019

Flood Warning – Porcupine Lake and Mattagami River – April 26 2019

Watershed Conditions Statement Flood Watch – April 25 2019

Watershed Conditions Statement Flood Outlook – April 23, 2019

Watershed Conditions Statement Water Safety – April 22, 2019

Watershed Conditions – 2019

Upper Mattagami River Watershed Statistics – May 15, 2019

Upper Mattagami River Watershed Statistics – May 2, 2019

Upper Mattagami River Watershed Statistics – April 16, 2019

Upper Mattagami River Watershed Statistics – April 2, 2019

Upper Mattagami River Watershed Statistics – March 18 2019

Upper Mattagami River Watershed Statistics – March 5 2019

Flood Warning System Messages

The MRCA issues five types of messages depending on conditions: 

 

NORMAL – No flood conditions to report.

 

WATERSHED CONDITIONS STATEMENT – Water Safety

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

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 other conditions that could lead to high runoff, cause ice jams, lakeshore flooding or erosion.

FLOOD WATCH

Flooding is possible in specific watercourses or municipalities. Municipalities, emergency services and individual landowners in flood-prone areas should prepare.

FLOOD WARNING

Flooding is imminent or already occurring in specific watercourses or municipalities.