Dashboard of Key Indicators

Water Supply Reliability

Availability

Local Rainfall

Lindbergh Field Station as of Aug. 31, 2018
Date Rainfall (in) Water Year to Date (in) Percent of Average*
October 0.00 0.00 0%
November 0.02 0.02 1%
December 0.07 0.09 3%
January 1.78 1.87 37%
February 0.36 2.23 30%
March 0.95 3.18 35%
April 0.02 3.20 32%
May 0.02 3.22 30%
June 0.00 3.22 30%
July 0.00 3.22 30%
August 0.02 3.24 30%

Colorado River

Hydrologic Conditions as of Sept. 17, 2018
Hydrologic IndicatorPercent of Average*
Upper Basin Precipitation67.0%
Forecasted Unregulated Inflow to Lake Powell44.0%
Reservoir Storage Levels as of Sept. 17, 2018
ReservoirStorage in MAFPercent of Capacity
Lake Mead9.938%
Lake Powell11.2446%
Combined21.1442%
MAF = million acre-feet

State Water Project (SWP)

For Calendar Year 2018 as of April 24, 2018
SWP ContractorRequest (AF)Approved Allocation (AF)Percent
Metropolitan Water District 1,911,500 573,450 30%
Hydrologic Conditions as of Sept. 5, 2018
Hydrologic IndicatorPercent of Average*
Northern Sierra 8-Station Precipitation Index80.0%
Northern Sierra Snowpack50.0%
Reservoir Storage Levels as of Sept. 17, 2018
ReservoirStorage in MAFPercent of Capacity
San Luis1.0752%
Oroville1.4641%
Combined2.5345%

*Percent average is for the water year to date