Weather watch called for Calgary and other Alberta communities

A severe thunderstorm watch has been called for a number of communities in central and southern Alberta, including Calgary. Environment Canada put the watch in place at about 11:30 a.m. Sunday. "Thunderstorms will develop along a surface trough this afternoon and continue into the evening. Some of these thunderstorms may become severe," the agency says on it's website. It adds large hail has the potential to damage property and cause injury while strong winds can toss loose objects into the air,