Maitland Conservation is issuing a Watershed Conditions Statement – Water Safety for all municipalities in the Maitland and Nine Mile River watersheds.
A Colorado Low storm system is tracking towards the Great Lakes region today (March 31st), bringing moisture in the form of rain to Southern Ontario. As of early this afternoon the Maitland watershed has received 10 – 15 mm. Light showers are forecasted to continue this afternoon before intensifying tonight. Showers are then expected to taper off Saturday evening (April 1st) with concluding rainfall totals reaching 30 – 40 mm.
Based on the current precipitation forecast and watershed conditions, major flooding is not expected. Watercourses will respond quickly due to saturated soils and river levels that are already elevated from last week’s rain and snowmelt. Water levels are again likely to reach or exceed bankfull conditions resulting in ponding and minor flooding in typical low-lying areas.
Municipal officials are encouraged to monitor low-lying and flood prone roads. Residents are reminded to use caution near all watercourses. Slippery and unstable streambanks, and cold and fast-flowing water will create hazardous conditions.
There is the potential for greater rainfall amounts due to embedded thunderstorms through this evening. Maitland Conservation will continue to monitor conditions and provide an update if warranted.
This message is in effect until the afternoon of Tuesday April 4, 2023.
Contact:
Jeff Winzenried, Flood Forecasting Supervisor
[email protected]
Types of Flood Messages:
Watershed Conditions Statement – Water Safety – General watershed conditions are being assessed for high runoff potential that could lead to flooding, and to remind the public of general river safety issues.
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. Municipalities and individuals should take action to deal with flood conditions. This may include road closures and evacuations.