MISSISSIPPI RESERVOIR LEVELS

Last Updated: November 7, 2025

The United States' network of dams and reservoirs plays a crucial role in water management, providing essential services such as water supply, hydroelectric power, and flood control. However, these reservoirs are subject to the whims of climate and weather patterns, sometimes leading to concerning fluctuations in their storage levels.

A recent evaluation of the nation's reservoirs reveals a patchwork of conditions, with some experiencing higher than average storage and others facing significant deficits. For instance, Lake Winnipesaukee in New Hampshire shows a storage level below its average, indicative of potential water supply stress. Conversely, General Edgar Jadwin Reservoir in Pennsylvania exceeds its average, possibly due to recent precipitation events or managed releases. Drought conditions continue to affect Maurice R At Union Lake Dam in New Jersey and Wanaque Reservoir, with both reporting significantly lower levels than average. Similar deficits are recorded at Greenwood Lake and Lake Hopatcong, signaling a troubling trend for New Jersey's water reserves.

In the West, where water storage is vital for coping with arid conditions, the situation is mixed. Colorado's Granby Reservoir is currently over its average storage, potentially benefiting from snowpack melt or conservation measures. However, Elephant Butte Reservoir in New Mexico is alarmingly low, reflecting prolonged drought conditions that plague the Southwest. Similarly, Lake Powell, straddling the border between Utah and Arizona, exhibits dramatically reduced storage levels, underscoring the long-term impacts of the regional drought and overuse.

These examples underscore the challenges faced by water managers in balancing demand with the need to maintain reservoir levels for ecological and recreational purposes. The observed storage trends may be linked to various factors such as regional precipitation patterns, upstream river flows, and human interventions like water consumption and reservoir management practices. As climate change continues to influence weather extremes, the management of these critical water resources becomes increasingly complex, necessitating meticulous planning and adaptable strategies to ensure water security for future generations.

Mississippi has several major reservoirs, including Grenada, Ross Barnett, and Arkabutla. These reservoirs are fed by the Yalobusha, Pearl, and Coldwater rivers, respectively. Snowpack and mountains are not relevant in this area, as Mississippi is a relatively flat state. The hydrology in the area is heavily influenced by rainfall, with seasonal trends of higher flows in the spring and lower flows in the summer. Record levels of flooding have occurred in the past, notably in 1979 when the Mississippi River flooded and caused significant damage. However, drought conditions have also been an issue in recent years, with some reservoirs experiencing low levels of water. Overall, reservoirs and dams play an important role in managing water resources in Mississippi, providing water for irrigation, drinking water, and recreation.

Mississippi has several major reservoirs, including Grenada, Ross Barnett, and Arkabutla. These reservoirs are fed by the Yalobusha, Pearl, and Coldwater rivers, respectively. Snowpack and mountains are not relevant in this area, as Mississippi is a relatively flat state. The hydrology in the area is heavily influenced by rainfall, with seasonal trends of higher flows in the spring and lower flows in the summer. Record levels of flooding have occurred in the past, notably in 1979 when the Mississippi River flooded and caused significant damage. However, drought conditions have also been an issue in recent years, with some reservoirs experiencing low levels of water. Overall, reservoirs and dams play an important role in managing water resources in Mississippi, providing water for irrigation, drinking water, and recreation.

       

Reservoirs & Dams