Severe Thunderstorms With Damaging Wind, Isolated Tornado Risk Likely Thursday in PA

Severe Thunderstorms With Damaging Wind, Isolated Tornado Risk Likely Thursday in PA

An active severe weather season that has produced the third highest tornado count in PA in recorded history doesn’t want to go away. This despite late August usually marking a significant downtrend in severe weather. Another round of severe weather is likely Thursday in the eastern half of the state.

Thursday’s threat will be all-hazards, with damaging winds being the main concern. Very localized hail in the strongest cells is possible along with a tornado or two amidst decent wind shear. Storm timing will be late Thursday afternoon through just after sunset.

Some guidance is suggesting clusters of storms and heavy rain in Southeast PA around lunchtime, while others keep that activity in NJ or just don’t have it at all. Below is future radar timing from the HRRR model for Thursday’s storms.

FUTURE RADAR TIMING (HRRR MODEL)

THURSDAY’S SEVERE THUNDERSTORM THREAT FORECAST

Area A: Scattered severe thunderstorms are likely, with damaging winds up to 70mph the main concern. Very isolated hail possible, and a tornado cannot be ruled out.

Area B: Isolated strong to severe thunderstorms possible with damaging winds up to 60mph the primary risk.

Don’t forget to share this forecast with family and friends who may have outdoor plans on Thursday!

Josh Adams is the founder and lead forecaster of Pennsylvania Weather Action, a regional forecasting site he launched in 2015. With over a decade of experience analyzing weather patterns across Pennsylvania, his forecasts have reached millions of readers throughout the state. Josh specializes in Pennsylvania’s complex microclimates and terrain-driven weather patterns, providing detailed coverage of severe thunderstorms, winter storms, and flooding events. His forecasting focuses on delivering precise, timely information to help Pennsylvanians stay informed and prepared during impactful weather. Last Updated: March 10, 2026