PITTSBURGH — 11:45 p.m.

A Severe Thunderstorm Warning has been issued for parts of Allegheny, Washington and Westmoreland counties.

Track the storms with our Interactive Radar

6:30 p.m. Multiple local counties are under a severe thunderstorm watch.

The National Weather Service placed parts of Armstrong, Beaver, Butler, Indiana, Lawrence, Mercer and Venenago counties under the watch.

The watch is expected to run until around 1 a.m. on Wednesday.

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