Pittsburgh braces for a winter storm, with heavy snowfall and frigid temperatures expected. The National Weather Service has issued a Winter Storm Warning for areas south of Allegheny County and a Winter Weather Advisory for the county and others to the north. As of Friday evening, the Pittsburgh area is anticipated to receive between two and four inches of snow, with estimates of 3-5 inches in the city and 5-10 inches in the ridges. The snow will be accompanied by cold temperatures, with low temperatures in the single digits and wind chills below zero as gusts could reach up to 15-20 mph. Road crews are prepared for the impending snowfall, with two dozen trucks and more than 9,000 tons of salt ready in Allegheny County. PennDOT has reduced speed limits for several major roadways across the Pittsburgh area, including Interstates 70, 79, and 376, urging drivers to avoid unnecessary travel. The KDKA-TV reports that areas south of Pittsburgh are experiencing the heaviest snowfall, with a lake-effect snow warning in effect for Mercer and Venango counties. The storm is expected to bring significant snowfall to the region this weekend, with the heaviest rates anticipated between midnight and 4 a.m. on Sunday. After the snow, temperatures will fall with low teens and wind chills into the negatives on Sunday. KDKA's Shelley Bortz provides real-time updates from the Mobile Weather Lab, and the weather service records indicate that historically, the frequency of snowfalls of 12" or more is about once every 15 years in Pittsburgh.
