With the rainfall warnings being issued for areas of south east and south central Saskatchewan, the Water Security Agency is bracing for possible localized flooding issues where rain accumulations are highest with some areas possibly in line to receive as much as 90 millimetres of rain.

South Central areas of the province are expected to get heaviest accumulations particularly in the Poplar River Basin near Coronach, eastern portions of the Old Wives Lake Basin near Assiniboia and over Avonlea Creek.

Rain and wind move into parts of Saskatchewan; rainfall warning area expands

Where conditions have been wetter in the past month, such as areas east of Regina from the United States Border to Jan Lake, could see increasing flows, potentially to flood levels, particularly on Pipestone Creek, Antler River and tributaries within the Lower Red Deer River Basin near Hudson Bay, including the Fir and Overflowing rivers. The Assiniboine River is still seeing some higher flows after spring runoff; significant precipitation could cause the river to spill over resulting in localized flooding.

The additional rainfall predicted will bring Boundary and Rafferty reservoirs closer to the preferred operating levels for these reservoirs but is not expected to result in their filling. WSA also advises that if the spring storm causes power disruptions to local municipal water systems, local drinking water advisories may be issued as needed.