The Global Environmental Multiscale Model (GEM), is often known as the Canadian weather model used by the Canadian Meteorological Centre for long-range forecasting.  Below is the model's prediction of different types of precipitation in South Dakota for the next 10 days.  Use the scroll bar to check out the forecast maps or click on the animate button to view see maps in a slide show.   Map Updates: Every 12 Hours (00z and 12z).