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Flood Forecasting

Current Flood Status:

Return to Normal
March 7, 2017

Water levels in the region have dropped considerably over the past couple of days. Flooding is not expected in the near future. We continue to advise caution near creeks and rivers where stream flow may increase with rainfall plus snow melt.

Water Safety Statement
Feb 28, 2017

The Raisin Region Conservation Authority is advising caution near local rivers and creeks. Water levels are currently high, and water is moving quickly. Water is contained within the river banks for the most part, and flooding is not expect. There may be areas of ponding or nuisance flooding in low-lying areas.

Environment Canada has issued the following special weather statement for our area.

Rain is expected to spread across southern Ontario from west to east tonight and taper off on Wednesday. Although rainfall amounts are not expected to be overly significant, the ground has a reduced ability to absorb further rainfall due to recent rains and snowmelt. General rainfall amounts of 15 to 25 millimetres are likely, though isolated spots may see higher amounts, especially in areas that receive thunderstorms. Caution is advised near creeks and rivers where stream flow is expected to increase. Ponding of water may occur in some areas as well.

A water safety statement indicates high flows, unsafe banks, melting ice or other factors that could be dangerous for recreational users such as anglers, canoeists, hikers, children, pets, etc. 

The RRCA will continue to monitor water levels throughout the region, and post updates as required.


Please see flood status messages.


Flood Forecasting and Warning in the RRCA

The Ontario Ministry of Natural Resources and Forestry (MNRF) is responsible for flood related emergencies.

Flood forecasting and warning has been delegated to Conservation Authorities.
If a local emergency is declared, MNRF will work directly with the municipality and in consultation with the Conservation Authority.

The Raisin Region Conservation Authority monitors water levels throughout Cornwall; South Glengarry; and large portions of North Glengarry and South Stormont.

About Flood Forcasting Notices

Depending on watershed conditions, the flood status will be one of the following:

No flood conditions exist.

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.

In the event of a flood status of anything other than normal, the RRCA will issue a media release and advise our member municipalities.

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Raisin Region Conservation Authority
18045 County Road #2, P.O. Box 429, Cornwall, ON, K6H 5T2
Tel. 613-938-3611   Fax. 613-938-3221