December 13, 2022
Category: AZ Surface Water Status
The following table summarizes the status of Arizona’s key surface water supplies for the month of December.
| 2022 | 2021 | 2020 | 2019 | 2018 | |
|---|---|---|---|---|---|
| COLORADO RIVER SYSTEM | |||||
| Lake Powell (% full) | 24 | 28 | 43 | 53 | 43 |
| Lake Mead (% full) | 28 | 34 | 39 | 40 | 38 |
| Total Colorado System (% full) | 33 | 37 | 47 | 46 | 46 |
| Lake Mead Elevation (ft msl) | 1,044 | 1,065 | 1,082 | 1,085 | 1,079 |
| 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 | N/A | NA |
| Tier 3 Shortage Declaration Elevation (ft msl) | 1,025 | 1,025 | 1,025 | 1,025 | 1,025 |
| Lake Powell Elevation (ft msl) | 3,527 | 3,540 | 3,587 | 3,611 | 3,585 |
| 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) | 97 | 95 | 57 | 86 | 110 |
| Upper Basin Current Snowpack (% of average) | 115 | 73 | 69 | 128 | 104 |
| SALT / VERDE RIVER SYSTEM | |||||
| Salt River Reservoirs (% full) | 68 | 72 | 83 | 73 | 49 |
| Verde River Reservoirs (% full) | 38 | 34 | 36 | 49 | 31 |
| Total Salt / Verde System (% full) | 64 | 67 | 77 | 70 | 47 |
| Salt/Verde Water Year Precipitation to Date (% of average) | 130 | 68 | 32 | 149 | 109 |
| Salt/Verde Current Snowpack Level (% of average) | 35 | 62 | 13 | 251 | 84 |
| CAP STORAGE | |||||
| Lake Pleasant (% full) | 61 | 71 | 70 | 83 | 64 |
Data compiled from Central Arizona Water Conservation District, U.S. Bureau of Reclamation, and Salt River Project
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