Barrie — ***UPDATE 7:05 P.M.*** All Tornado warnings lifted in Dufferin County. *** As of 4:30 p.m. *** A tornado warning is in effect for southern Dufferin County. Environment Canada meteorologists say they are tracking a storm that could produce a tornado. The locations impacted are now Orangeville, Grand Valley and the rest of southern Dufferin County. The weather agency says damaging winds and intense local rainfall is also possible. A tornado watch is in effect for the rest of Dufferin County. A tornado warning is also in place in parts of southwester Ontario. We will continue to track this storm and have more details as they become available.