Winter storm and blizzard warnings cover much of Ontario, as a high impact system sweeps the province, threatening dangerous holiday travel. A far-reaching and high impact storm moving over the Great Lakes has prompted widespread warnings across the entire province of Ontario. Heavy snowfall, potentially damaging winds, blizzard conditions, and icy roads and surfaces are all hazards from this multi-day storm for Christmas. Before dawn on Friday morning, between 5-15 cm of snow was already reported in parts of northern Ontario, with more than 5 cm recorded in the city of Ottawa. According to Hydro One, about 22,000 customers were without power early Friday, with the majority of outages reported across eastern Ontario. Meanwhile, school boards across the Greater Toronto Area (GTA) and National Capital Region made the call on Thursday to close their doors ahead of the storm and deteriorating conditions.