* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...The mid-Hudson Valley, eastern Catskills, and the central and southern Taconics in eastern New York, Litchfield County in northwest Connecticut, and Berkshire County in western Massachusetts. * WHEN...Through Wednesday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Periods of moderate to heavy rain and thunderstorms arrive this afternoon from west to east and continue into tomorrow with rainfall rates reaching or exceeding 1 to 2 inches per hour at times. Despite recent dry conditions, such high rainfall rates in a short period of time can result in flash flooding, especially in urban and poor drainage areas and where heavy rain repeatedly impacts a given area. Steady rain continues into Wednesday before transitioning to showers Wednesday night into Thursday. 2 to 4 inches of rain is expected for most areas in the flood watch, with locally higher amounts possible in the eastern Catskills, Berkshires, and Litchfield Hills. - http://www.weather.gov/safety/flood