The Virgin Islands experience a tropical climate with high temperatures and rainfall throughout the year. The major surface flows include small streams and rivers, which often experience flash floods during heavy rainfall events. There are no major reservoirs or dams in the region. The hydrology is heavily influenced by the topography of the islands, which are mostly volcanic and hilly. There are few major rivers or tributaries, and most of the streams flow directly into the ocean. Snowpack and watershed data are not relevant to the hydrology of the Virgin Islands due to their location in the tropics. Overall, the hydrology of the Virgin Islands is characterized by small, flashy streams and frequent flood events.