At 353 PM EDT, severe thunderstorms were located along a line from
over Butler to over McKeesport, moving east at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Law enforcement reported. At 330 PM law enforcement reported
trees and powerlines down across the Zelienople area of
Butler County.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Pittsburgh, Penn Hills, Mount Lebanon, Bethel Park, Monroeville,
Greensburg, McKeesport, Butler, Jeannette, Vandergrift, Kittanning,
Apollo, Shaler Township, Plum, West Mifflin, North Side Pittsburgh,
Baldwin, Upper St. Clair and Murrysville.
What to do:
Seek shelter inside a well-built structure and stay away from
windows. These storms have produced damaging winds.
Intense thunderstorm lines can produce brief tornadoes and widespread
significant wind damage. Although a tornado is not immediately
likely, it is best to move to an interior room on the lowest floor of
a building. These storms may cause serious injury and significant
property damage.