text:  This is America in the Morning. Where will dangerous thunderstorms threaten outdoor activities today? Here's AccuWeather.com meteorologist LaTroy Thornton. As a cold front continues its push out to the Atlantic Ocean, cooler and noticeably drier air continues to filter into parts of the Northeast today, especially New England, with a glorious end to the work week in store for many from Maine to Pennsylvania and back eastward to Delaware. However, there will be the risk for severe weather from the central high plains through the upper Midwest,