* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of northeast New Jersey, including the following areas, Eastern Bergen, Eastern Essex, Eastern Passaic, Eastern Union, Hudson, Western Essex and Western Union and southeast New York, including the following areas, Bronx, Kings (Brooklyn), New York (Manhattan), Northern Queens, Richmond (Staten Island), Southern Queens and Southern Westchester. * WHEN...Through Wednesday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - A slow moving low pressure system will bring multiple rounds of heavy showers and thunderstorms to the area today through Wednesday. Average rainfall amounts are expected to be between 2.5 and 3.5 inches with localized higher amounts. Peak hourly rainfall rates could be as high as 2 to 3 inches in the heaviest showers and thunderstorms. Most of the rainfall is expected to fall through tonight, however flooding is still possible on Wednesday. - http://www.weather.gov/safety/flood