The Colorado River Basin is entering another critical stretch as scientists, cities, water managers, and federal agencies warn that the system is still under serious pressure. Recent reports show that the crisis is not only about how much water is left in Lake Mead and Lake Powell, but also how accurately the river can be forecast, how fast states can reduce use, how hydropower will be affected, and how cities and industries continue to plan for growth in a shrinking water future.
A new Arizona State University study is looking to improve how water managers forecast Colorado River supplies. KJZZ reported that ASU researchers are using satellite data to build more accurate models of the river by tracking not only river flows, but also the water held in snow and soil across the Basin. The research is being developed with the Central Arizona Project, which delivers Colorado River water to the Phoenix and Tucson areas.
The new satellite work shows how water planning is becoming more technical as the river becomes less predictable. In the past, snowpack and streamflow measurements helped water managers estimate what the year might look like. But drought, hotter temperatures, and changing runoff patterns have made those forecasts harder. If agencies can better understand how much water is held in snow, soil, and river systems, they may be able to make better decisions before conditions become more severe.
The need for better planning is urgent because water storage across the Basin continues to decline. The University of Colorado Boulder’s Getches-Wilkinson Center reported that stored water reserves in the Colorado River system are still falling because overall water use remains out of balance with the river’s natural supply. The report warned that another dry year could bring the system dangerously close to a “crash,” meaning reservoirs could lose much of their ability to provide the reliable water supply they were built to support. Even a wet year, according to the report, would only provide temporary relief without major reductions in water use across the Basin.
This warning is important because Lake Mead and Lake Powell are more than storage reservoirs. They are the backbone of the Colorado River system. They help deliver water, generate hydropower, protect against dry years, and support cities, tribes, agriculture, and ecosystems across the West. When storage falls too low, the entire system becomes harder to manage, and emergency actions in one part of the Basin can create new problems in another.
The Upper Basin is also feeling the effects of a difficult water year. Denver7 reported that Colorado’s drought is not over despite recent rainfall. Colorado State Climatologist Russ Schumacher said the state’s mountain snowpack was the worst recorded since snowpack measurements began, and that poor snowpack and early melting will likely keep river flows low through the summer. The report noted that agriculture, recreation, wildfire risk, and municipal water supplies could all feel the effects, especially in July and August when irrigation demand is high.
This matters for the entire Colorado River system because much of the river begins as snow in the Rocky Mountains. Summer storms may help in some areas, but they cannot fully replace a weak winter snowpack. When less snow reaches the river, less water moves downstream into reservoirs, farms, cities, and tribal communities. That is why drought in Colorado is not just an Upper Basin concern. It is a Basin-wide issue.
Colorado is also trying to reduce water use, but progress has been slow. Water Education Colorado reported that the state’s efforts to cut water use are off to a slow start, even as Colorado River conditions worsen. The challenge shows how difficult conservation can be, especially when water rights, local economies, agriculture, and state responsibilities all come into play. Reducing water use is widely discussed as necessary, but carrying it out in a fair and effective way remains complicated.
At the same time, the river’s low reservoirs are creating new problems for hydropower and ecosystems. The Associated Press reported that federal officials are considering cool water releases from Glen Canyon Dam to protect the humpback chub, a threatened native fish in the Grand Canyon. The releases would send colder water downstream to help prevent non-native smallmouth bass from spawning in warmer waters below the dam. However, the cold water would bypass hydropower turbines, reducing power generation and creating additional costs for utilities that rely on federal hydropower.
The issue shows how low reservoir levels are changing the way dams operate. Glen Canyon Dam was built to store and release water while also producing electricity, but declining levels in Lake Powell are forcing managers to balance competing needs. Protecting native fish may require sacrificing hydropower. Protecting hydropower may increase risks to river ecosystems. As the system continues to shrink, those tradeoffs will become more common.
Similar concerns are growing at Hoover Dam. Circle of Blue reported that Lake Mead is approaching a critical elevation where Hoover Dam’s hydropower generating capacity could be cut by 70%. The report said Lake Mead is nearing the 1,035-foot elevation threshold, where many of Hoover Dam’s turbines are not designed to operate under low-water conditions. Reduced hydropower could increase costs for power customers and create broader challenges for the electric grid.
Growth and development are also becoming part of the water conversation. 12News reported that a large data center project in Arizona will scale down after public backlash. Data centers have become a growing concern in the West because they can require large amounts of water and electricity, depending on how they are cooled and operated. As more companies look to build in Arizona and Nevada, communities are asking whether new development can be supported without putting more pressure on already stressed water supplies.
That concern connects to a broader trend across the Southwest. Cities and industries are still planning for growth while the Colorado River system is producing less water than it once did. Water managers are now being asked to support housing, business development, technology projects, agriculture, and conservation at the same time. The challenge is not only finding new supplies, but deciding what kind of growth is realistic in a hotter and drier future.
These reports show that the Colorado River Basin is facing pressure from several directions at once. Scientists are working to improve forecasts because the river has become harder to predict. Colorado is dealing with weak snowpack and low flows. Basin-wide storage is still falling. Glen Canyon Dam and Hoover Dam are facing hydropower and ecosystem challenges. Cities and industries are being forced to rethink how growth fits into a limited water future.
The Colorado River crisis is no longer a single issue. It is a water supply issue, an energy issue, an economic issue, an environmental issue, and a community planning issue.
What does this mean for CRIT?
For the Colorado River Indian Tribes, these developments show why accurate information and long-term planning are essential. As the river becomes harder to predict, every forecast, reservoir decision, and conservation plan can influence how water is managed across the Basin.
Sources
KPNX NBC 12News Phoenix
https://www.12news.com/article/news/local/arizona/large-data-center-project-arizona-will-scale-down-after-backlash/75-717b0b73-1dff-4be6-a5c2-bb77bb9ba4ee
Water Education Colorado
https://watereducationcolorado.org/fresh-water-news/colorados-race-to-cut-water-use-off-to-a-slow-start
University of Colorado Boulder
https://www.colorado.edu/center/gwc/2026/06/01/update-colorado-river-basin-storage-continues-slide-toward-system-crash
Circle of Blue
https://www.circleofblue.org/2026/water-energy/hoover-dam-approaches-a-hydropower-cliff/