Flood Watch

* WHAT...Flooding caused by excessive rainfall is possible.

* WHERE...The mid-Hudson Valley, eastern Catskills, Litchfield County, central and southern Taconics, and western Massachusetts.

* WHEN...From Tuesday afternoon through Wednesday evening.

* IMPACTS...Excessive runoff from heavy rainfall rates may flood low-lying, poor drainage, urban, and other flood-prone locations. Areas where heavy rainfall rates persist will especially be vulnerable to flash flooding.

* ADDITIONAL DETAILS... - Periods of moderate to heavy rain and thunderstorms capable of heavy downpours arrive tomorrow afternoon from west to east continuing tomorrow night with rainfall rates 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. Three day rainfall totals likely range from 1 to 3 inches with 3 to 6 inches in the eastern Catskills, Litchfield County and central and southern Taconics due to upslope enhancements. - http://www.weather.gov/safety/flood