Raleigh receives an average of 6.0 inches (15.2 cm) of snow in winter. Freezing rain and sleet also occur most winters, and occasionally the area experiences a major damaging ice storm. On January 2425, 2000, Raleigh received its greatest snowfall from a single storm 20.3 inches (52 cm) the Winter Storm of January 2000. Storms of this magnitude are generally the result of cold air damming that affects the city due to its proximity to the Appalachian Mountains. Winter storms have caused traffic problems in the past as well.
What caused the Winter Storm of 2000?
cold air damming