Airdrie hail storm declared a ‘catastrophe event’ Roy / Monday, August 11, 2014 / Categories: Storms CALGARY-A vicious storm that hit north of Calgary last week has been declared a ‘catastrophe event.’ The Insurance Bureau of Canada (IBC) says the hailstorms that nailed Airdrie and area on August 7 and 8 caused more than $25 million damage ... Comment Collapse Expand Comments (0) warning You don't have permission to post comments.