MVCA upgrades WC watershed statement to flood watch

WEST CARLETON – The Mississippi Valley Conservation Authority (MVCA) has released an early update to last week’s (March 4) Flood Outlook Statement, upgrading conditions to a Flood Watch Statement today (March 9).

A Flood Watch Statement indicates that flooding is possible in specific watercourses or municipalities.

“Municipalities, emergency services and individual landowners in flood prone areas should prepare,” the MVCA released in a statement Monday. “Warmer temperatures and rainfall over the weekend have resulted in rising water levels within the Carp River watershed.”

Above-freezing temperatures are expected to continue, with rainfall forecast between March 10 and March 11. Total rainfall amounts of 20 to 35 millimetres are anticipated during this period. Daytime temperatures are expected to remain above freezing through March 11, which may contribute to continued snowmelt and increased runoff. Temperatures are expected to drop below freezing beginning March 12.

“Snowpack remains in parts of the watershed, and continued melting is expected with the forecasted warm temperatures and rainfall,” the MVCA said. “Ground conditions are saturated, which will limit infiltration and increase runoff. Unstable ice conditions may also be present and could lead to the formation of ice jams.”

Rivers and streams may experience higher water levels, fast flowing water and slippery or unstable banks. Lake and river ice may weaken, mobilize, and elevate the risk for localized ice jam formation. Roads, driveways, and properties in flood-prone areas could be impacted with localized ponding or minor flooding.

“Residents are advised to exercise caution when near rivers, streams, and other waterbodies due to high flows and slippery conditions,” the MVCA said. “Parents are encouraged to remind children about these dangers and provide appropriate supervision.”

Residents in flood prone areas are advised to maintain close watch on water levels and flows and take the necessary precautions to protect their property by:

• Ensuring sump pumps are clear, in good working condition and have a backwater valve.
• Having a portable generator and backup pump available.
• Ensuring downspouts are clear and the outlet is at least 3 meters from any structure.
• Removing or securing items that might float away if flows increase.
• Removing valuable items from basements or lower floors that could be subject to flooding.
• Keeping emergency phone numbers handy.
• Familiarizing yourself with your municipality’s emergency preparedness plan.

“This message is in effect until March 16, or until an update has been issued,” the MVCA said.

Daily water levels and flows are available on the MVCA website at www.mvc.on.ca/water-levels.