Aransas

Watershed Hydrology

The Aransas Watershed (HUC 12100407) is located in southern Texas and covers approximately 2,800 square miles. The hydrology of the watershed is characterized by a mix of humid subtropical and semi-arid climates, with precipitation averaging around 30-40 inches per year. The area is not typically known for snowfall, with average annual snowfall being less than one inch. Surface water in the watershed is primarily provided by the Aransas River, which flows into the Aransas Bay. The reservoirs in the watershed are composed of a mix of freshwater lakes and ponds, including Lake Texana and Choke Canyon Reservoir. The climate in the watershed is notable for its extreme weather events, such as hurricanes and tropical storms. In recent years, the area has seen an increase in average temperatures and a decrease in annual precipitation, which may have implications for the health of the watershed's ecosystems.


Surface Flows

Aransas Watershed

Snowpack Depths

Aransas Watershed

Dams & Reservoirs

Aransas Watershed

Groundwater Levels

Aransas Watershed

Aransas Rivers

Rivers of the Watershed