Winter storms can range from a moderate snow over a few hours to a blizzard with blinding, wind-driven snow that lasts for several days. The extreme cold and heavy snowfall that accompany winter storms can be debilitating and dangerous. Winter storms can affect everyone, even those who usually experience mild winters. Heavy snowfall can be blinding for drivers and dangerous for those it traps indoors. Winter storms also may include high winds, sleet, freezing rain, frozen roads, power outages, and dangerously cold temperatures.