MVCA issues flood warning for upper Mississippi

APRIL 28, 2018 MISSISSIPPI VALLEY WATERSHED—The Mississippi Valley Conservation Authority is extending the area encompassed by the FLOOD WARNING to include the upper Mississippi Valley watershed including Mazinaw Lake, Little Marble Lake, Marble Lake and Ardoch Village. With rainfall overnight and additional rainfall in the forecast for tomorrow, flows and levels are expected to continue to increase into next week.

Spring run-off on the river last year.

Levels in the Snow Road area above Dalhousie Lake have begun to drop but may increase again with additional rainfall.

Flows in the upper Clyde River and the Fall River watersheds had begun to drop but may also start to increase again depending on how much rainfall those areas receive.

Flows within the Indian and Carp Rivers have been dropping steadily over the last two days but are beginning to increase again with the rainfall overnight.

With the increased flows in the upper watershed, residents on Mississippi Lake can expect levels to increase as much as 40 cm over the next three to four days bringing levels to 135.20 m. This would be comparable to levels reached on the lake in 2017. Flows on the Mississippi River are not expected to peak until late next week. Flows and levels throughout the watershed will remain higher than normal over the next two weeks.

Residents are strongly urged to remind children of the dangers of hypothermia from cold water and playing near fast flowing rivers and creeks.

Residents in low lying areas, historically susceptible to flooding, should take the necessary precautions to protect their property, such as:

  • Ensuring sump pumps are clear and in good working condition
  • Removing or securing items that might float away as flows increase

This FLOOD WARNING UPDATE is valid through April 30, 2018. Additional statements will be issued when or if conditions are expected to change significantly from this outlook.

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

The Mississippi Valley Conservation Authority flood forecasting and warning program monitors weather conditions, snowpack water content, estimates expected river flows and water levels and issues flood advisories or warnings as required. MVCA provides early warning and continuous monitoring to municipal and provincial emergency response personnel through a flood event.

Contact: Gord Mountenay, C.E.T.
Water Management Supervisor
613-253-0006 ext. 233
info@mvc.on.ca            www.mvc.on.ca