“There were few clues in the morning data sets on Thursday May 22, 2014 that conditions would come together to support the development of a solitary and powerful supercell thunderstorm during the afternoon which would go on to produce a violent tornado in the Delanson/Duanesburg area of Schenectady County as well as giant hail ranging in size from 1.5″ in diameter (ping pong balls) to a reported 4.0″ in diameter (grape fruit sized) on a path from southeast Hamilton County through eastern Fulton, eastern Montgomery, western Schenectady and northern Albany counties between 1:30 pm and 4:30 pm as the storm moved from north to south, southeast at 20 mph.”
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Channel 6 News 22 May 2020.