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Northeast Faces Severe Storms Today
21 Jul
Summary
- Enhanced risk for severe weather in Philadelphia region Tuesday.
- Damaging winds, tornadoes, and large hail possible across PA, NJ, Delmarva.
- Slight risk of flash flooding from Tuesday afternoon to Wednesday morning.
Severe thunderstorms are anticipated for the Philadelphia region on Tuesday, July 21, 2026. The National Weather Service has issued an enhanced risk alert for eastern Pennsylvania, New Jersey, and the Delmarva peninsula. Residents should be aware of potential damaging winds, tornadoes, and large hail, with the highest likelihood of these conditions occurring between 2 p.m. and 9 p.m. today.
Beyond the immediate thunderstorm threat, there is a slight risk of flash flooding. This is expected to be in effect from 2 p.m. on Tuesday until 2 a.m. on Wednesday. While Tuesday presents a significant risk, the forecast indicates a lower potential for severe thunderstorms on Wednesday, with the most likely activity between 2 p.m. and 8 p.m.
