Environment Canada has issued a snowfall warning for the local area.

The warning includes:

•M.D. of Foothills near Cayley
•M.D. of Foothills near High River and Aldersyde
•M.D. of Foothills near Longview and Eden Valley Res.
•M.D. of Foothills near Okotoks and De Winton
•M.D. of Foothills near Priddis and Brown-Lowery Prov. Park
•M.D. of Foothills near Turner Valley and Black Diamond
•M.D. of Willow Creek near Claresholm and Stavely
•M.D. of Willow Creek near Nanton and Parkland
•Rocky View Co. near Bragg Creek and Tsuu T'ina Res.

A slow moving upper low over southern B.C. is expected to bring a prolonged snowfall event to the foothills and southwestern Alberta.

Heavy snow will begin Wednesday night and persist through Thursday, into Friday before gradually tapering off Saturday morning.

Total snowfall accumulations of 15 to 25 centimetres are expected by Saturday morning, with up to 40 centimetres, possible along portions of the foothills.

Roads are in driveable shape Thursday morning, but they're slippery in spots so be prepared to adjust your driving for the changing road conditions.