Flood Forecasting and Warning

Status: Flood Watch

Wednesday, March 23, 2022 (1:00 PM)

Status: Flood Watch

The Raisin Region Conservation Authority (RRCA) is issuing a Flood Watch for the RRCA jurisdiction. A Flood Watch is issued when flooding of roads or dwellings has not yet occurred but is possible under forecast weather conditions.

Intense rainfall is forecast for the early hours of Thursday, March 24. Further rainfall is forecast for the early hours of Friday, March 25. In total, 15-35 mm of rainfall is forecast. Watershed conditions are already wet and water levels remain elevated following the recent snowmelt and rainfall.

Following the forecast rain event, water levels will increase and could exceed the highest water levels of the past week.

Across the RRCA jurisdiction:

  • Worsened nuisance flooding of low-lying areas is expected.

In South Glengarry:

  • High risk of flooding of the low point of Chapel Road, between the Beaudette River and Caber Road
  • Risk of flooding of McGillivray Road near Boileau Lane

In North Glengarry:

  • Properties in flood-prone areas downstream of Mill Pond will see water collecting and backing up over the next 48 hours.
  • The water levels of Loch Garry, Middle Lake, and Mill Pond are being actively managed.

Residents in areas regularly affected by spring flooding should take precautions to protect their property, such as:

  • Securing items that might float away as flows increase
  • Removing items from sheds, garages, basements, or lower floors that could be subject to flooding
  • Ensuring sump pump is clear, in good working condition, and has a backwater valve
  • Ensuring easy access to a portable backup generator and pump

This statement is in effect until Monday, March 28, 2022, at 4:00 PM. This statement replaces the Flood Outlook Statement issued on March 21. The RRCA will continue monitoring water levels and weather forecasts as part of the Flood Forecasting and Warning program. Updates will be provided as conditions change.

For more information: Halya Petzold, Resource Specialist, (613) 938-3611 ext. 244, halya.petzold@rrca.on.ca

Media contact: Vincent Pilon, Public Information Coordinator, (613) 938-3611 ext. 229, vincent.pilon@rrca.on.ca

Forwarded to: RRCA Flood Forecasting and Warning Directory

About 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 precipitation and water levels throughout Cornwall, South Glengarry, and large portions of North Glengarry and South Stormont.

About Flood Forecasting Notices

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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