- Environment Canada has issued a Rainfall Warning for Pincher Creek, Waterton Lakes National Park, and Crowsnest Pass, Okotoks, Kananaskis.
- Heavy rain developing today and ending Saturday.
- Up to 50 mm projected.
A vigorous low pressure system will move slowly eastward just south of the international border over the next few days. As the system moves cloud and heavy rain will continue to spread northward into Southwestern Alberta.
Rain from this system has already started at Pincher Creek and will spread northward into the Okotoks and Kananaskis regions this evening.
Rainfall amounts in the 80 to 100 mm range are expected by Saturday morning especially over higher terrain. Conditions will begin to improve from the south on Friday with rain tapering off in the Crowsnest Pass region. Conditions further north will improve on Saturday.
Forecast regions along the periphery of the warned areas will also see significant rainfall amounts with up to 50 mm possible by Saturday.