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

There are no flood messages at this time.

Recent Advisories and Statements

The Water Conditions Statement – Water Safety has been cancelled. Waterways have returned to safe levels.

Water Conditions Statement-Mattagami River  and Porcupine Lake_October 16 2018

Flood Warning – Mattagami River_October 11 2018

Watershed Condition Statement-Water Safety_October 10, 2018

Watershed Conditions – 2018

Upper Mattagami River Watershed Statistics – 04.18.2018
Upper Mattagami River Watershed Statistics – 04.03.2018
Upper Mattagami River Watershed Statistics – 03.19.2018
Upper  Mattagami River Watershed Statistics – 03.05.2018

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.