A series of cold fronts will bring showers, strong winds, hail and snow to parts of southeast South Australia, southern New South Wales, Victoria and Tasmania early and mid next week. What is a cold front? A cold front is the leading edge of a relatively cold air mass moving into a region of warmer air. In the Australian region, warm moist northerly winds often occur ahead of the cold front, while colder dry southerly winds typically follow behind the cold front. Learn more about cold fronts in