Environment Canada has a special weather statement in effect for conditions that will start Tuesday afternoon. Warning Preparedness Meteorologist Geoff Coulson says the large low pressure system is coming from Texas. "The system will move into southwestern Ontario and into the Woodstock area late in the afternoon or early in the evening on Tuesday. Initially probably going to start as rain as our temperatures are going to be a little above the freezing mark, but we should switch over to snow as we get further in Tuesday evening," said Coulson. Coulson says small changes in the temperature will dictate whether it falls as rain or snow. "As we look at the overnight hours Tuesday getting into Wednesday morning, temperatures again expected to be right around the freezing mark. At this point it looks like it's mostly going to be a snow event for Woodstock on Wednesday. But again, it could be a wet variety of snow. So accumulations at this point are a little difficult to pin down," said Coulson. There are varying forecasts for the snow accumulations over the next 24 hours; Environment Canada is predicting 10-15 cms of snow for our region while the Weather Network is calling for 15-25 cms of snow. It will largely depend on the mix of rain and snowfall. The snow we do receive will be wet and heavy.