Lake Powell Runoff Forecast Hits Record Low
Lake Powell Runoff Forecast Hits Record Low
US · Published May 11, 2026
• Lake Powell, the second-largest reservoir in the U.S., is projected to receive only 13% of its typical April-to-July runoff this year, marking the lowest inflow since its creation in
• Federal forecasters estimate approximately 800,000 acre-feet of water will flow into the reservoir during this period, down from 1.4 million acre-feet projected last month. The record dry conditions from November to March, combined with a March heatwave, have significantly reduced snowpack levels, exacerbating water supply concerns. The reservoir's current storage is at 23% capacity, threatening hydropower production at Glen Canyon Dam, which supplies electricity to half a million homes.

Why It's Important?

The reduced runoff into Lake Powell poses serious risks to water availability for agriculture, municipal use, and hydropower generation across the western U.S. The situation may also impact recreational activities, local economies, and downstream ecosystems. Federal measures to stabilize water levels, such as drawing from Flaming Gorge Reservoir, could limit future water resources and flexibility during dry years.

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