Port Authority's Light Rail Transit service was halted this morning by severe icing of the overhead power lines.
Spokesman Jim Ritchie said despite the deployment of sleet cutting vehicles overnight on the T, "ultimately, ice buildup won." Seven vehicles become stuck on the line and two overhead wires came down.
Mr. Ritchie said a heavy maintenance vehicle was deployed to start clearing ice from the Red Line. If that is successful, the work will move to the Blue Line.
At 6:30 a.m., Port Authority had restored limited service on the Red Line, with vehicles running every 25 minutes or so, but no service was operating on the Blue Line as work to clear ice from power lines and move disabled vehicles continued, Mr. Ritchie said.
PennDOT said the Parkway North HOV lanes will remain closed until further notice to allow crews to focus on clearing the mainline.
Speed limits on Western Pennsylvania highways have been reduced to 45 mph. The Pennsylvania Turnpike also was operated at the reduced limit.
The winter storm also is causing school delays and closures. For a complete list, visit the website of KDKA-TV, the PG's news partner.
About 2 inches of snow fell overnight in Pittsburgh, and nearly an inch of sleet and freezing rain that accumulated on top of that is causing "very slick conditions" this morning, said John Darnley, meteorologist with the National Weather Service in Pittsburgh, based in Moon.
"Conditions are pretty nasty everywhere. ... If you don't have to venture out, I wouldn't," he said.
As much as 7 inches of snow fell in parts of Butler County; 5.5 inches were reported in Monaca; Braddock recorded 3 inches, and 5 inches fell in Ford City and parts of Armstrong County.
Little to no snow was reported in areas of Westmoreland and Fayette but sleet and freezing rain are creating plenty of icy conditions of their own this morning, Mr. Darnley said.
A winter storm warning for the Pittsburgh area remains in effect through 1 p.m. with periods of most intense ice through 8 a.m.
At least two large water main breaks were reported overnight: In Mt. Lebanon, pavement in the 300 block of McCully Street is buckling and has separated. And in Wilkinsburg, a sinkhole has been reported at Whitney Avenue and Hay Street at the site of a break.
In a tweet from Allegheny County, officials said ice was falling from the roof of the Allegheny County Courthouse.
Duquesne Light reported 100 customers without power in Hazelwood and Penn Hills. No significant outages were reported by West Penn Power.
FlightStats.com reported that 60 incoming and departing flights had been canceled at Pittsburgh International Airport, among 2,400 cancellations nationwide.
Jon Schmitz: firstname.lastname@example.org, 412-263-1868 and on Twitter @pgtraffic. Molly Born: email@example.com or 412-263-1944 or on Twitter @borntolede.
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