Facts about SNOW EVENTS….. Snow Flurry Light, intermittent (not on going) snow fall without accumulation (piling up). Snow Shower Short periods of light or moderate snow fall with small accumulation. Alberta Clipper A fast moving LOW PRESSURE system that comes from Alberta, Canada that travels south into the USA and then up the Atlantic Coast. It brings very cold temperatures and 1-3 inches of snow. Nor’Easter A LOW PRESSURE system that hits the East Coast. In the winter this type of storm can bring significant snow accumulation. Lake Effect Snow Warm moist air evaporates off of a lake. Cold air pushes over the lake creating a sudden burst of snow. Snow accumulation can be significant but not wide spread. Blizzard A dangerous storm with strong winds (35 mph) causing blowing snow and limited visibility for at least 3 hours. Snow Squall A sudden “blizzard” like condition – winds, snow, cold – in a very narrow and small area. Thunder Snow Snowfall that has thunder and lightning. A rare event. The ground layer is warmer than the layers above but still cold enough for snow.