May 12, 2021
Category: AZ Surface Water Status
The following table summarizes the status of Arizona’s key surface water supplies for the month of May.
| 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|
| COLORADO RIVER SYSTEM | |||||
| Lake Powell (% full) | 35 | 49 | 40 | 52 | 51 |
| Lake Mead (% full) | 38 | 43 | 41 | 39 | 40 |
| Total Colorado System (% full) | 43 | 52 | 47 | 51 | 51 |
| Elevation (Lake Mead; ft msl) | 1,077 | 1,095 | 1,088 | 1,083 | 1,084 |
| DCP “Tier Zero” Declaration Elevation (ft msl) | 1,090 | 1,090 | NA | NA | NA |
| Tier 1 Shortage Declaration Elevation (ft msl) | 1,075 | 1,075 | 1,075 | 1,075 | 1,075 |
| Elevation (Lake Powell; ft msl) | 3,561 | 3,601 | 3,577 | 3,609 | 3,605 |
| Upper Basin Water Year Precipitation to Date (% of average) | 73 | 84 | 119 | 73 | 117 |
| Upper Basin Current Snowpack (% of average) | 53 | 68 | 160 | 47 | 110 |
| SALT / VERDE RIVER SYSTEM | |||||
| Salt River Reservoirs (% full) | 79 | 98 | 81 | 61 | 75 |
| Verde River Reservoirs (% full) | 32 | 98 | 81 | 31 | 76 |
| Total Salt / Verde System (% full) | 73 | 98 | 81 | 57 | 75 |
| Salt/Verde Water Year Precipitation to Date (% of average) | 51 | 104 | 126 | 33 | 116 |
| Salt/Verde Current Snowpack Level (% of average) | N/A | N/A | N/A | N/A | N/A |
| CAP STORAGE | |||||
| Lake Pleasant (% full) | 93 | 95 | 91 | 87* | 85 |
*May 2018 Lake Pleasant storage estimated based on lake elevation of 1,691 ft msl
Data compiled from Central Arizona Water Conservation District, U.S. Bureau of Reclamation, and Salt River Project
Data compiled from Central Arizona Water Conservation District, U.S. Bureau of Reclamation, and Salt River Project
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