The National Weather Service has issued a Flash Flood Warning for Harlem and Manhattan until 10:30 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.