Data viz: explore our interactive dashboards for drought, precipitation and snowpack
These maps and visualizations let you interact with vital data on our water supply.
A dry subject: how scientists map drought conditions
Scientists have a variety of measures of drought, but some are starting to use the term "aridification" to describe the long-term drying of the Southwest.
Map: weekly drought reports
This map depicts data from the National Drought Mitigation Center. Drought intensity categories are based on numerous indicators and local reports from more than...
Map: U.S. dams and reservoirs
The Global Reservoir and Dam Database (GRaND) is a survey listing about 7,000 larger dams and reservoirs worldwide, including 1,920 in the United States....
Map: daily nationwide snowpack
This map shows daily snowpack estimates for the contiguous United States since October 2003. Using the dropdown menu above the chart – or clicking...