IA03166-AFMSCS-SUBWATERSHED-SITE-22 RESERVOIR REPORT

Last Updated: February 4, 2026

In the latest observations of the nation's dams and reservoirs, there is a notable variance in water storage levels, with some showing surpluses and others indicating lower than average volumes. As water management researchers and hydrologists delve into the data, it's clear that regional disparities in precipitation, snowpack levels, and river flows contribute to these contrasting conditions.

For instance, major reservoirs such as Lake Mead in Nevada and Lake Powell in Arizona report storage significantly below their averages, reflecting long-term drought conditions that have persisted in the Southwest. Conversely, California's Lake Almanor and Lake San Antonio have experienced surpluses, with current storage exceeding average levels, likely due to recent heavy rainfall events. In Colorado, Dillon Reservoir and Granby Reservoir report lower storage, potentially impacted by below-average snowpacks. The data paints a complex picture of the nation's hydrological health, with implications for water supply, ecosystem management, and future resource planning. Understanding these dynamics is crucial for developing strategies to adapt to changing water availabilities and to ensure sustainable water management in face of climatic variability.