Water Supply Reliability
Availability
Local Rainfall
Lindbergh Field Station as of March 31, 2019| Date | Rainfall (in) | Water Year to Date (in) | Percent of Average* |
|---|---|---|---|
| September | 0.00 | 0.00 | 0% |
| October | 0.57 | 0.57 | 79% |
| November | 0.81 | 1.38 | 80% |
| December | 3.02 | 4.40 | 135% |
| January | 2.80 | 7.20 | 137% |
| February | 3.42 | 10.62 | 141% |
| March | 1.23 | 11.85 | 127% |
Colorado River
Hydrologic Conditions as of April 22, 2019| Hydrologic Indicator | Percent of Average* |
|---|---|
| Upper Basin Precipitation | 118% |
| Upper Basin Snowpack | 135% |
| Forecasted Unregulated Inflow to Lake Powell | 112% |
Reservoir Storage Levels as of April 22, 2019
| Reservoir | Storage in MAF | Percent of Capacity |
|---|---|---|
| Lake Powell | 9.0 | 37% |
| Lake Mead | 10.8 | 41% |
| Combined | 19.8 | 39% |
State Water Project (SWP)
For Calendar Year 2019 as of Nov. 30, 2018| SWP Contractor | Request (AF) | Approved Allocation (AF) | Percent |
|---|---|---|---|
| Metropolitan Water District | 1,911,500 | 191,150 | 10% |
Hydrologic Conditions as of April 16, 2019
| Hydrologic Indicator | Percent of Average* |
|---|---|
| Northern Sierra 8-Station Precipitation Index | 135% |
| Northern Sierra Snowpack | 164% |
Reservoir Storage Levels as of April 23, 2019
| Reservoir | Storage in MAF | Percent of Capacity |
|---|---|---|
| Oroville | 3.15 | 89% |
| San Luis | 1.85 | 91% |
| Combined | 5.00 | 90% |
*Percent average is for the water year to date