Thunderstorms, some strong, this evening through tomorrow evening; storms can bring gusty winds and even an isolated tornado
A push of cooler air will slash summerlike conditions across the Upper Midwest then in the Northeast beginning this weekend.
Parts of the Great Lakes and the Ohio Valley states will take a turn of severe thunderstorms with localized flooding downpours into Tuesday night.
Showers and thunderstorms threaten to interfere with Memorial Day festivities across more than half of the United States.
Due to a cable line issue, the National Oceanic and Atmospheric Administration's weather radios went out of service throughout Oklahoma on Sunday. Service was restored early Monday morning.