Overview

• A severe thunderstorm watch covered areas from eastern Pennsylvania to southern Maine until about 8 p.m. Saturday, putting more than 25 million people on alert for damaging weather.
• Forecasters warned of wind gusts near or above 60 mph, large hail and torrential rain with localized flash flooding, along with a low chance of brief tornadoes.
• Tornado warnings were issued and later expired in parts of western Massachusetts and northern Connecticut as multiple severe thunderstorm warnings flared across New England and the New York tri-state area.
• County-level warnings highlighted localized impacts, including quarter-sized hail and 60 mph gusts in Lancaster County, Pennsylvania, with training downpours raising flood concerns in urban and poor-drainage spots.
• With the front now pushing east, the severe threat diminished Saturday night, cooler fall-like air builds in the Mid-Atlantic on Sunday, and a separate Met Office yellow thunderstorm warning was active in Herefordshire, UK, Sunday morning.