Manitoba Transportation and Infrastructure’s Hydrologic Forecast Centre reports the risk of spring flooding is low to moderate for most Manitoba rivers throughout the spring period. Spring flood risk is largely dependent on weather conditions from now until the melt is done.
At this time, the centre advises most lakes are expected to be within their desired operating ranges after the spring runoff and the risk of flooding along Manitoba lakes is low. A moderate risk of flooding is in effect for the Assiniboine River main stem from Russell to Brandon, Souris River, Qu’Appelle River and Interlake region (including the Fisher River and Icelandic River). A low (minor) flood risk is in effect for the Red River, Pembina River, Rat River, Roseau River, Winnipeg River, Saskatchewan River, Churchill River, Carrot River and Swan River, and the Whiteshell Lakes area.
The Hydrologic Forecast Centre is monitoring a precipitation system that could bring up to 15 cm of snow over the weekend to most central and southern Manitoba basins. The effect of this precipitation system is included in the current flood outlook.
Minimal operation of the Red River Floodway and the Portage Diversion may be necessary to mitigate future weather conditions. The Shellmouth Dam is being operated in consultation with the Shellmouth Dam liaison committee to provide storage capacity for reservoir inflows to reduce flooding downstream as well as ensure a sufficient reservoir level for recreation and water supply.
Ice-cutting and breaking activities are completed on the Red and Icelandic rivers. Ice-cutting and breaking activities will be conducted along the Fisher River this week.
Spring flood risk is largely dependent on weather conditions from now until the spring melt and throughout the spring. Daily temperatures are warming gradually and ice thickness and strength will continue to deteriorate. Citizens are advised to stay off waterways, rivers and retention ponds.
The Manitoba Emergency Management Organization (EMO) continues to work with all local authorities and emergency management partners to provide guidance and support to prepare for and respond to spring flooding. This includes reviewing existing emergency plans, sharing information and preparing resources used in flood response. Additionally, Manitoba EMO continues to work with Indigenous Services Canada (ISC) and Municipal and Northern Relations (MNR) to support ISC and MNR-led preparation activities for First Nations and Northern Affairs communities.
The 2025 spring flood outlook report is available at: Flood Information | Transportation and Infrastructure | Province of Manitoba
