SNOFLO
 


LAKE POWELL

RESERVOIR LEVELS USBR 919
May 1, 2025


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Lake Powell is a man-made reservoir located in northern Arizona, created when the Glen Canyon Dam was built on the Colorado River in the 1960s. Its hydrology is primarily fed by the Colorado River, but also receives water from several tributaries, including the San Juan and Escalante rivers. The lake plays a critical role in providing water to users in Arizona, California, and Nevada, as well as Mexico. The surface flow of the lake is also affected by snowpack, with the snowmelt from the Rocky Mountains influencing the annual water levels. Lake Powell is used for a variety of purposes, including hydroelectric power, irrigation for agriculture, and recreational activities such as boating and fishing. Despite its importance, the lake faces several environmental challenges, including drought, invasive species, and water quality issues.

Storage 24hr Change -0.06%
Percent of Normal 55%
Minimum 5,400 acre-ft
1963-06-29
Maximum 25,695,200 acre-ft
1983-07-14
Average 14,045,444 acre-ft
       
Seasonal Comparison
Created with Highcharts 8.0.0Seasonal Water Storage(acre-ft)1. Jan1. Feb1. Mar1. Apr1. May1. Jun1. Jul1. Aug1. Sep1. Oct1. Nov1. Dec05M10M15M
Storage Levels
Created with Highcharts 8.0.0Storage (acre-ft)28. Oct11. Nov25. Nov9. Dec23. Dec6. Jan20. Jan3. Feb17. Feb3. Mar17. Mar31. Mar14. Apr28. Apr02.5M5M7.5M10M
Bank Storage Levels
Created with Highcharts 8.0.0Bank Storage (acre-ft)28. Oct11. Nov25. Nov9. Dec23. Dec6. Jan20. Jan3. Feb17. Feb3. Mar17. Mar31. Mar14. Apr28. Apr02M4M6M
Pool Elevation Levels
Created with Highcharts 8.0.0Pool Elevation (ft)28. Oct11. Nov25. Nov9. Dec23. Dec6. Jan20. Jan3. Feb17. Feb3. Mar17. Mar31. Mar14. Apr28. Apr01k2k3k4k
Total Release Levels
Created with Highcharts 8.0.0Total Release (cfs)28. Oct11. Nov25. Nov9. Dec23. Dec6. Jan20. Jan3. Feb17. Feb3. Mar17. Mar31. Mar14. Apr28. Apr05k10k15k
Inflow Levels
Created with Highcharts 8.0.0Inflow (cfs)28. Oct11. Nov25. Nov9. Dec23. Dec6. Jan20. Jan3. Feb17. Feb3. Mar17. Mar31. Mar14. Apr28. Apr05k10k15k

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