Storm Clouds

Dark clouds roll over a farm before a thunderstorm opens up along Meadowvalley Road in Warwick Twp. Thursday April 9, 2020.

Lancaster County's under a severe thunderstorm watch until midnight, according to the National Weather Service.

As of 8 p.m., other Pennsylvania counties under the watch are Adams, Bedford, Cumberland, Dauphin, Franklin, Fulton, Lebanon, Perry, Schuylkill, Somerset and York.

Meteorologists issue a severe thunderstorm watch when conditions are favorable for the development of severe thunderstorms. This does not necessarily mean that every part of the areas under a severe thunderstorm watch will experience severe weather.

Click here to read more about the difference between thunderstorms, severe thunderstorm watches and warnings.

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