On Thursday at 2:23 p.m. the National Weather Service issued a severe thunderstorm watch in effect until 10 p.m. for Adams, Columbia, Cumberland, Dauphin, Franklin, Fulton, Huntingdon, Lancaster, Lebanon,

A severe thunderstorm warning for Allegheny, Westmoreland and Indiana counties has been extended until 6:45 p.m. A warning for Washington County continues until 7 p.m. The National Weather Service also said there is a flash flood warning for Allegheny and Washington counties until 8:45 p.

Forecasters say some of the thunderstorms that develop Thursday afternoon or Thursday evening could contain damaging wind gusts.