U.S. Department of the Interior
Bureau of Reclamation
Boulder Canyon Operations Office
Weekly Hydrologic Update
Current System Conditions (as of 7/12/2026)
Reservoir Elevation
(feet)
Change
Since Last
Week (feet)
Content
1,000 acre-
feet (kaf)
Percent
Full
Projected EOCY
2026 Elevation
(feet)1
Change Since
Previous 24-Month
Study (feet)
7-Day Release
(cubic feet per
second)
Lake Powell 3,524.32 -0.95 5,506 24% 3,505.02 +0.70 7,800
Lake Mead 1,042.77 -0.92 7,170 27% 1,036.83 -0.20 11,700
o Colorado River total system contents: 19,292 kaf (33% of capacity)2
o Colorado River total system contents last year: 23,218 kaf (40% of capacity)
Upper Basin Conditions
o WY 2026 Precipitation to Date: 18.83 inches (78% of normal), 80% last week
o Current Snowpack: NA
o Lake Powell Unregulated Inflow – As of July 1, 2026
o Forecasted Water Year 2026: 3,501 kaf (36% of normal), an increase of 10 kaf as compared to the previous
forecast of 3,491 kaf (36% of normal)
o Forecasted April-July 2026: 1,080 kaf (17% of normal), an increase of 30 kaf as compared to the previous
forecast of 1,050 kaf (16% of normal)
Lower Basin Conditions
o Lake Mead Basin
o WY 2026 Precipitation to Date: 19.39 inches (105% of normal), 109% last week
o Current Snowpack: NA
o 24-Month Study inflow projection: July inflow projection of 53 kaf3
Colorado Basin River Forecast Center: July inflow projection of 64 kaf (90% of average)4
o Salt/Verde Basin
o WY 2026 Precipitation to Date: 16.49 inches (87% of normal), 84% last week
o Current Snowpack: NA
Mexico Excess Flows
• 2026 Excess Flows: 1,725 acre-feet (January 1 to July 12, 2026)
Other System Conditions
o For other Colorado Basin conditions, please visit https://www.usbr.gov/lc/region/g4000/hourly/levels.html.
o For the conditions in the Salt River Project, please visit https://streamflow.watershedconnection.com/Dwr.
o For Alamo and Painted Rock reservoir conditions, please visit https://water.usace.army.mil/overview/spl.
For questions concerning this report, please contact the River Operations group at bcoowaterops@usbr.gov.
1 Projected values are based on the June 24-Month Study.
2 The total system contents include Upper and Lower Colorado River reservoirs, less Lake Mead exclusive flood control space.
3 The 24-Month Study forecast uses a dataset based on average monthly intervening flow from 2021 to 2025, inclusive, to project future
intervening flow into Lake Mead (5-year average).
4 The CBRFC’s forecast of intervening flow between Lake Powell and Lake Mead provides a comparison to Reclamation’s 5-year average. The
CBRFC forecast uses a 30-year climatology record from 1991-2020.
