A state of emergency was declared in New Jersey after slow-moving thunderstorms unloaded a significant amount of rain, resulting in dangerous flash flooding across the Northeast Monday into Monday night. At least two people died in Plainfield, N.J., located about 20 miles southwest of New York City, after floodwaters swept away a vehicle. Emergency personnel responded to the incident quickly, but both people in the vehicle were pronounced dead on the scene. "All of Plainfield grieves this