Crisis on the Colorado Part I: The West’s Great River Hits Its Limits– Will...
As the Southwest faces rapid growth and unrelenting drought, the Colorado River is in crisis, with too many demands on its diminishing flow. Now those who depend on the river must confront the hard reality that their supply of Colorado water may be cut off.
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 350 expert observers around the...
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. Data includes such parameters as...
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 a state on the map...