A major winter storm is forecasted to hit Quebec and Ontario, bringing up to 40 centimeters of snow and temperatures dropping to 7°C in southern Quebec. The Ontario Provincial Police (PPO) has issued warnings urging drivers to exercise caution as a significant winter storm is expected to impact the Northeast of Ontario this week. The storm will include heavy snowfall and strong gusts, leading to slippery roads, reduced visibility, and increased collision risks. Police have highlighted incidents from earlier storms, including vehicle rollovers and crashes involving emergency vehicles, emphasizing the importance of adapting driving habits to winter conditions. Practical advice from authorities includes snow and ice removal from vehicles, checking road conditions via Ontario 511, and ensuring vehicles are winter-ready with appropriate tires and emergency kits. The PPO advises drivers to slow down, increase safety distances, avoid sudden braking, and use headlights when visibility is poor. The storm's arrival coincides with ongoing cold weather, with temperatures in southern Quebec reaching up to 7°C, and ongoing snowfall expected to cause hazardous driving conditions. Authorities continue to monitor the situation and urge caution to prevent accidents.