March 14, 2023
Category: AZ Surface Water Status
The following table summarizes the status of Arizona’s key surface water supplies for the month of March.
| 2023 | 2022 | 2021 | 2020 | 2019 | |
|---|---|---|---|---|---|
| COLORADO RIVER SYSTEM | |||||
| Lake Powell (% full) | 23 | 25 | 38 | 49 | 38 |
| Lake Mead (% full) | 28 | 34 | 41 | 44 | 41 |
| Total Colorado System (% full) | 32 | 36 | 45 | 52 | 45 |
| Lake Mead Elevation (ft msl) | 1,046 | 1,066 | 1,087 | 1,096 | 1,089 |
| Tier 1 Shortage Declaration Elevation (ft msl) | 1,075 | 1,075 | 1,075 | 1,075 | 1,075 |
| Tier 2a Shortage Declaration Elevation (ft msl) | 1,050 | 1,050 | 1,050 | 1,050 | 1,050 |
| Tier 2b Shortage Declaration Elevation (ft msl) | 1,045 | 1,045 | 1,045 | NA | NA |
| Tier 3 Shortage Declaration Elevation (ft msl) | 1,025 | 1,025 | 1,025 | 1,025 | 1,025 |
| Lake Powell Elevation (ft msl) | 3,520 | 3,526 | 3,570 | 3,602 | 3,571 |
| Minimum Power Generation Elevation (ft msl) | 3,490 | 3,490 | 3,490 | 3,490 | 3,490 |
| Upper Basin Water Year Precipitation to Date (% of average) | 125 | 100 | 73 | 88 | 123 |
| Upper Basin Current Snowpack (% of average) | 139 | 92 | 82 | 101 | 132 |
| SALT / VERDE RIVER SYSTEM | |||||
| Salt River Reservoirs (% full) | 90 | 77 | 83 | 85 | 65 |
| Verde River Reservoirs (% full) | 82 | 37 | 30 | 64 | 98 |
| Total Salt / Verde System (% full) | 89 | 72 | 77 | 82 | 69 |
| Salt/Verde Water Year Precipitation to Date (% of average) | 146 | 73 | 47 | 95 | 124 |
| Salt/Verde Current Snowpack Level (% of average) | 278 | 92 | 21 | 46 | 94 |
| CAP STORAGE | |||||
| Lake Pleasant (% full) | 66 | 85 | 92 | 91 | 92 |
Data compiled from Central Arizona Water Conservation District, U.S. Bureau of Reclamation, and Salt River Project
