WWA is an applied research program that addresses societal vulnerabilities related to weather and water resources.
Western Water Assessment
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June 1 regional seasonal #streamflow volume forecasts were less than 50% of average for all river basins except the Wind (93%), Shoshone (87%), Yellowstone (80%), Snake (73%), and Bighorn (61%) River Basins.
Learn more: wwa.colorado.edu/resources/in... @cires.colorado.edu
In Colorado, seasonal #streamflow volume forecasts suggest 20-40% of average runoff for all major river basins. In Utah, forecasts suggest 10-40% of average runoff for all major river basins. In Wyoming, forecasts were more variable.
Learn more: wwa.colorado.edu/resources/in... @cires.colorado.edu
The #heatwave during March 2026 was unprecedented in the western U.S. temperature records since 1895. March 2026 average temperatures shattered records in Colorado (by 4.3ºF), Utah (by 5.5ºF), and Wyoming (by 2ºF).
Learn more: wwa.colorado.edu/resources/in... @cires.colorado.edu
WWA's latest rapid assessment is on the 2025-2026 extreme #snowdrought in CO, UT, and WY. The assessment covers the magnitude of extreme low snow-water equivalent (SWE) conditions in early 2026, likely causes of the snow drought, and more.
wwa.colorado.edu/resources/ha... @cires.colorado.edu
Ash and sediment from #wildfires can contaminate Colorado's long-term reservoir storage. "Not just for one year or two years, but sometimes for up to eight years," said Ben Livneh, CIRES fellow and @wwanews.bsky.social director, on Denver7 News.
www.denver7.com/news/environ...
“The notion that a wet April, May, June, might save us is quickly leaving the building,” said Nels Bjarke, a research scientist with @wwanews.bsky.social and CIRES.
www.kjzz.org/science/2026...
Western Water Assessment
Western Water Assessment
Western Water Assessment
Winter never came to Colorado. Ben Linveh, @cuengineering.bsky.social associate professor and director of @wwanews.bsky.social at @cires.colorado.edu explains the "perfect storm" overlap of climate change and natural climate swings. Learn how you can help our water supply ↓
https://bit.ly/4dIFa4P
Western Water Assessment
Aurora Water warns that leftover ash and sediment from wildfires can contaminate reservoirs and reduce storage capacity - even years after the flames are out.
“I think Front Range cities will be asked, whether nicely or not, to reduce their Colorado River diversions,” said Jeff Lukas, a water consultant and former @wwanews.bsky.social and CIRES scientist.
sentinelcolorado.com/metro/colora...
NEW — @wwanews.bsky.social's report on the 2025-2026 Extreme Snow Drought in the Intermountain West provides information about likely causes of the snow drought, early impacts from record low regional snow-water equivalent, and more!
wwa.colorado.edu/resources/ha...
Arizona's water supply could face major cutbacks on the heels of an exceptionally hot, dry winter in the Rocky Mountains.
“Ultimately, it's going to take relatively, perhaps even draconian cuts in water (use)... unless there's some major change in how we think about the system operating,” said Seth Arens, a hydrologist at the @wwanews.bsky.social on Aspen Public Radio.
www.aspenpublicradio.org/environment/...
With snowpack at 40% of normal, a CU Boulder hydrologist explains why this year’s snow drought stands out and what it could mean for the Colorado River Basin.
The Bureau of Reclamation announced plans to release water from Flaming Gorge Reservoir, and to reduce flows out of Glen Canyon Dam on Lake Powell in an attempt to prop up the Colorado River Basin’s…
