In addition to record-challenging warmth this weekend, the Pittsburgh area will be on the edge of heavy rain and flooding to the north and west.
The weekend will bring periods of rain, drizzle and fog.
The greatest potential for flash, urban and small stream flooding from southwestern Pennsylvania to West Virginia is on Sunday. On this day, gusty winds will help to drive temperatures well into the 60s. Locally strong thunderstorms can focus the rain over the short period of time.
The combination of prolonged heavy rain and recent melting snow is likely to cause flooding of the lesser rivers in Ohio and northwestern Pennsylvania.
Much colder air will return to the area Monday with the usual barrage of flurries into Christmas morning.
There is a chance that where flurries persist that enough snow will be on the ground to consider it a white Christmas.
Tune in to AccuWeather Live Mornings every weekday at 7 a.m. EST. We will be talking about the snowstorm and weather leading up to Christmas.
The Steel City will be seeing a roller-coaster ride of temperatures through the weekend.
Millions of Irish and Irish-at-heart will gather for St. Patrick's Day celebrations across the United States.
Snow and wind causing dangerous travel and power outages has put some cities into the record books this winter.
A spike in severe thunderstorms, capable of producing tornadoes, will follow a slow start to severe weather season in 2014.
Knowing when precipitation will stop and start allows for effective, last-minute decision making when weather impedes daily life schedules.
The temperature roller-coaster ride will continue into next week for the New York City area.
Late-season snow; heaviest in the central mountains. Some amounts (in inches)... Seven Springs: 12 State College: 10-12 Johnstown: 9
6 waterspouts were spotted by a pilot between Seal Beach and Santa Catalina Island.
Iowa City, IA (1951)
Heavy snowstorm - 27.2".