A system developed in Saskatchewan's southern neighbour is travelling north and bringing severe weather, including heavy rainfall.
Environment and Climate Change Canada has issued a rainfall warning for the southwest following the showers and thunderstorms the Montana storm brought to the area last night. Persistent rain is also expected to continue today.
ECCC is projecting anywhere from 40 to 60 millimetres of rain for the southwest by tomorrow morning. Higher amounts will be confined to areas near the Cypress Hills and where locally embedded convection develops.
Heavy downpours can cause flash floods and water pooling on roads, and localized flooding in low-lying areas is possible.
If visibility is reduced while driving, turn on your lights and maintain a safe following distance. Watch for possible washouts near rivers, creeks and culverts.
