Colorado River Reservoir Levels Today
- Data updated
- Source data dated
- Editorially updated
| Reservoir | Observed | Elevation | Storage | 7-day storage change |
|---|---|---|---|---|
| Lake Powell | 3,521.88 ft -0.90 ft | 5.367 million acre-ft | -51.0 thousand acre-ft | |
| Lake Mead | 1,040.85 ft -0.32 ft | 7.036 million acre-ft | -22.1 thousand acre-ft | |
| Lake Mohave | 642.75 ft -0.75 ft | 1.752 million acre-ft | -21.3 thousand acre-ft | |
| Lake Havasu | 448.12 ft +0.04 ft | 0.534 million acre-ft | +0.7 thousand acre-ft |
Measurements are operational records. Values may be revised. Storage is shown as volume, not percent full, because operational capacity definitions can differ by source and purpose.
Four major Colorado River reservoirs
This dashboard uses operational records from the U.S. Bureau of Reclamation RISE database for Lakes Powell, Mead, Mohave, and Havasu. It shows the latest reported water-surface elevation and storage volume, plus an approximate change from seven days earlier.
How often it updates
ARGO.net checks the official records every six hours. The reservoirs are not necessarily measured or published at exactly the same moment, so each row carries its own observation date.
Storage is more informative than elevation alone
A foot of elevation does not represent the same volume at every lake because each basin has a different shape. Storage in acre-feet is the more direct measure of water volume. One acre-foot is the amount needed to cover one acre with one foot of water.
Why this page does not show “percent full”
Different reports may use total, active, live, or conservation capacity. To avoid mixing definitions, this dashboard presents the measured elevation and storage values directly from the operational record. Long-term policy, shortage declarations, and allocation decisions require additional official forecasts and accounting reports.
About short-term changes
A seven-day rise or fall can reflect releases, inflows, evaporation, precipitation, measurement timing, and downstream operations. It should not be treated as a long-range trend on its own.
