A potent combination of high humidity and an approaching frontal system is expected to spark widespread thunderstorms — some severe — along much of the East Coast. The system will arrive overnight from Sunday,

Forecasters warn of widespread damaging winds, very large hail and tornadoes, from Texas to the East Coast starting on Sunday.

A significant storm system is moving along the East Coast, bringing the potential for rain showers, thunderstorms, and gusty winds across the region. Areas highlighted in orange on the AccuWeather map show regions most at risk for severe thunderstorms on Monday,