America at 250 · Hoover Dam
Colorado River Reservoir Levels, Releases and Hydropower Forecasts
Live Lower Colorado River data and published 2 and 5 year projections, brought together so the system is easier to follow.
Today’s system snapshot
Three reservoirs. One clear operating picture.
Follow Lake Mead, Lake Mohave, and Lake Havasu from current water levels through daily releases, hydropower generation, historic trends, and published forecasts.
Upper Colorado Snow Water Equivalent
Upper Colorado Region NRCS
Current water-year snow water equivalent compared with USDA NRCS period-of-record percentile ranges and the 1991–2020 median.
Move across the chart with a mouse or finger, or focus it and use the Left and Right Arrow keys, to inspect each date.
Loading daily NRCS data…
Upper Colorado Precipitation Accumulation
Upper Colorado Region NRCS
Current accumulated water-year precipitation compared with USDA NRCS period-of-record percentile ranges and the 1991–2020 median.
Move across the chart with a mouse or finger, or focus it and use the Left and Right Arrow keys, to inspect each date.
Loading daily NRCS data…
Projection reviews & explainers
Go beyond the forecast line
Source-aware analysis of the 24-Month Study, important thresholds, and 30-trace CRMMS projections.
How to Read a 24-Month Study Without Treating Scenarios as Odds
A practical guide to reading 24-Month Study planning traces alongside CRMMS ensemble frequencies and testing important reservoir thresholds without overstating certainty.
Read the analysisPublic Data, Clear Context
Lake Projections brings together Bureau of Reclamation reservoir operations data and monthly planning studies. Each metric links to its detailed record and forecast context, where dates and source distinctions remain available.
Read about the sources and methods