Water Security Agency
April 26, 2023

Southeast Update – April 26

The Water Security Agency (WSA) is providing an update for southeast parts of the province along the Upper Souris and Long Creek basins.

Higher than expected daytime temperatures that have remained above freezing overnight this week, combined with remaining snowpack from last week’s significant snowfalls, are resulting in some runoff within upper sections of the Souris River, Moose Jaw River, Long Creek and Wascana Creek.

Flows on the Souris River above Weyburn are at 14 m3/s, higher than the normal flow of about 6 m3/s. This is equivalent to about a one in three-year peak flow. Flows and levels may increase further with additional melt expected today and tomorrow. While the Souris River through Weyburn will be higher than normal, flood related impacts are not expected.

Rafferty Reservoir still has significant capacity to store excess flows and WSA does not expect to see impacts near Estevan.

There is potential for some localized impacts including possible overtopping of roads along the Souris River above Rafferty Reservoir and Long Creek, as well as smaller tributaries to them.

WSA advises the public to take precautions near water bodies as flows can change quickly. If you see areas of high flow, please keep your distance.

WSA will continue to monitor conditions and provide updates as they develop.

For more information, please contact:

Patrick Boyle
Water Security Agency
Moose Jaw
Phone: 306.631.6997