Mississippi Coastal

Watershed Hydrology

The Mississippi Coastal Watershed (HUC 03170009) covers approximately 4,059 square miles, stretching from Louisiana to Alabama. The hydrology of the area is heavily influenced by the Mississippi River, which provides a vast amount of freshwater to the Gulf of Mexico. Snowpack is not significant in this region due to its location in the southern United States. Surface water in the watershed includes streams, rivers, and several larger bodies of water such as Lake Pontchartrain. Reservoir constituents include various fish species, such as catfish and bass, as well as shrimp, oysters, and crab. The area experiences a subtropical climate, with hot summers and mild winters. One interesting climatic fact is that the Mississippi Gulf Coast is one of the most hurricane-prone regions in the world, with the most active hurricane seasons occurring from August to October. In recent years, the area has experienced an increase in extreme weather events, such as flooding, which has had significant impacts on the local ecosystem and communities.


Surface Flows

Mississippi Coastal Watershed

Snowpack Depths

Mississippi Coastal Watershed

Dams & Reservoirs

Mississippi Coastal Watershed

Groundwater Levels

Mississippi Coastal Watershed

Mississippi Coastal Rivers

Rivers of the Watershed