Snow began to fall late on the night of January 24, 2000 and did not end until late morning to midday January 25, 2000. Near blizzard conditions were reported during the middle of the night. When the snow was over, 20.3"of snow was reported at RDU. Other reports around the Triangle measured as high as 2 feet!
The storm was not a very well forecast storm due to some errors in computer models leading up to the storm. Meteorologists at the National Weather Service and North Carolina State University have done a lot of research on that January 2000 snowfall to improve future winter storm forecasts. You can read an in-depth review of the storm from the Raleigh office of the National Weather Service by clicking to http://www4.ncsu.edu/~nwsfo/storage/cases/20000125/
CNN.com also has an archived story on how the record snowfall affected Raleigh residents at http://edition.cnn.com/2000/WEATHER/01/26/winter.storm.05/index.html