Snow changed to freezing rain and sleet, then briefly to rain as temperatures rose above freezing, and back to snow again. Snow accumulations averaged around six inches.
Every event with a place to put it; 3 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS CLE wrote it up.
Snow changed to freezing rain and sleet, then briefly to rain as temperatures rose above freezing, and back to snow again. Snow accumulations averaged around six inches. Temperatures then dropped into the teens and the wet snow and ice refroze, creating significant ice on the ground, roads and sidewalks. The icy conditions and low temperatures, with wind chills as low as thirty degrees below zero, continued throughout the first week of January resulting in many minor traffic accidents, injuries from falls on the ice and school closings.
The national radar mosaic for the moment the first event began.
3 winter storm. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Pennsylvania in 1999Every state in 1999This day in weather historyWarnings in Pennsylvania, January 1999
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5682870, 5682871, 5682872.