Tweet Tropical Storm Elsa is currently moving up the east coast toward New York City and today, even before it arrives, there was a downpour which led to some flash flooding in parts of the city: Flash floods unleashed by a series of powerful thunderstorms crippled highways, streets and subways in New York City and beyond, totally shutting down the vital Major Deegan Expressway for hours and stranding motorists who had to be rescued. Multiple roads were reported closed in places like Yonkers in Westchester County and Hackensack in New Jersey as the brunt of the storm hit during the rush hour, turning roads into rivers and subway stations into pools.