JOHANNESBURG – We’ve been having lovely weather in Johannesburg recently.But winter is not done with us, just yet.There’s a series of cold fronts expected to sweep across the country this week.Possibility of snow, rain and very cold conditions over the south-western parts of the Western Cape expected from Wednesday.Strong gale force winds are also forecast over the interiors of the Northern Cape, as well as along the southern coastline.Forecasters are also warning of very rough seas.