The National Weather Service issued a flash flood warning this morning for Manhattan, Brooklyn and Staten Island due to heavy rains. The alert warns that some urban areas, highways, streets and underpasses will be flooded, and commuters are advised to steer clear of low-lying areas as “water depth may be too great to allow your car to cross safely.” According to the latest update, the warning will be in effect until 9:15 AM this morning. Visit Weather.gov to stay on top of the most up-to-date information.