The National Weather Service has issued a severe thunderstorm watch for several counties in New York state, including Allegany and Cattaraugus counties.

The watch is in effect until 2 p.m. Thursday.

The National Weather Service issues thunderstorm watches when conditions are favorable for the development of severe thunderstorms in and close to the watch area. A severe thunderstorm by definition is a thunderstorm that produces hail 1-inch or larger in diameter and/or winds ofr 58 miles an hour o greater

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During the watch, people should be prepared to move to a place of safety if threatening weather approaches.

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