Winter’s not over yet!  Forecasters are watching a potential winter storm for southern Ontario Tuesday night and Wednesday.  Environment Canada says a low pressure system over Texas is expected to intensify and move northeastward with significant amounts of precipitation.  It’s still uncertain which areas will see mostly rain or snow, since temperatures will be close to the freezing mark.  Right now, the storm’s track has the precipitation beginning tomorrow afternoon as rain over areas south of a line from Sarnia to St. Catherines.  The precipitation will change over to wet snow by early tomorrow evening and the snow will spread northeastward to South Central Ontario by late tomorrow evening and to Eastern Ontario by Wednesday morning.  Some areas , including the Greater Toronto area, could see snowfall amounts as high as 15 centimetres.