A snow squall watch has been issued for Parry Sound, Port Carling and Port Severn. Environment Canada says shifting winds over Georgian Bay are likely to bring snow squalls back into our area late this morning. 5 to 10 cm of snow is possible.Snow squalls cause weather conditions to vary considerably, changes from clear skies to heavy snow within just a few kilometres. Meantime in Orillia and Barrie a snow squall watch is also in effect and could see up to 15 centimetres.