Today, meteorologists have a lot of technology and tools to track and predict the weather and forecast snowfall estimates from a vast array of computer models, along with satellite information that is combined with meteorological expertise to forecast snowfall amounts and forecast/predict major storms. I personally use several models the Canadian, Euro, and GFS. The (EURO) European model tends to be the most accurate. Before computer models and satellite data, meteorologists relied on storm movement and history along with their experience. Storms were tracked on hand-drawn maps with estimates of a storm’s liquid precipitation potential converted to snowfall based on the storm’s temperature environment and the expected duration of the snowfall. Snowfall forecasts were often determined by the storm’s snow-producing history combined with expected changes in intensity.
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