A couple of weather advisories have been issued for central and southern Alberta today.
A rainfall warning for the Red Deer, Ponoka, Stettler and Rocky Mountain House areas has now been expanded to include Airdrie, Cochrane , Olds and Sundre.
These areas could see as much as 50 mm of rain by Wednesday afternoon.
Meanwhile a severe thunderstorm watch is in effect for Calgary, Airdrie, and Cochrane, north to Olds and Sundre, west to Kananaskis and Canmore and south to Cardston and the Crowsnest Pass.
Severe thunderstorms are expected in these areas late this afternoon into this evening.