The Caballo Watershed (HUC 13030101) is located in south-central New Mexico and covers an area of approximately 2,070 square kilometers. The watershed is characterized by a semi-arid climate with high temperatures and low rainfall. The hydrology of the watershed is dominated by the Rio Grande and its tributaries, which provide a vital source of water for agricultural and urban use in the region.
Snowpack in the Caballo Watershed is relatively low, with an average snow water equivalent of only 33 millimeters. This is due to the semi-arid climate and low precipitation levels. Surface water in the watershed is primarily stored in the Caballo Reservoir, which is used for irrigation and recreation.
The Caballo Reservoir also serves as an important source of water for the Elephant Butte Reservoir downstream. However, the Caballo Reservoir is facing challenges due to increasing sedimentation levels and decreasing water levels.
In recent years, the Caballo Watershed has experienced a trend of decreasing precipitation and increasing temperatures, which has led to a decline in snowpack and water availability. This trend is expected to continue in the future, which could have significant impacts on water resources in the region.