Notification issued on 04/30/2014 at 5:55 PM. The National Weather Service has issued a Flood Warning for NYC until 9:45 PM. Excessive runoff from heavy rainfall will cause flooding of urban areas, highways, streets and underpasses, as well as other drainage areas and low lying spots. Do not drive your vehicle into areas where the water covers the roadway. The water depth may be too great to allow your car to cross safely. Move to higher ground. For the latest information visit: http://www.weather.gov/nyc.