Dashboard of Key Indicators

Water Supply Reliability

Availability

Local Rainfall

Lindbergh Field Station as of Sept. 30, 2017
Date Rainfall (in) Water Year to Date (in) Percent of Average*
October 0.07 0.07 12%
November 0.61 0.68 43%
December 4.22 4.90 158%
January 3.01 7.91 155%
February 3.71 11.62 158%
March 0.08 11.70 128%
April 0.01 11.71 118%
May 0.92 12.63 125%
June 0.02 12.65 125%
July 0.00 12.65 124%
August 0.00 12.65 124%
September 0.08 12.73 124%

Colorado River

Hydrologic Conditions as of Oct. 2, 2017
Hydrologic IndicatorPercent of Average*
Upper Basin Precipitation109%
Forecasted Unregulated Inflow to Lake Powell110%
Reservoir Storage Levels as of Oct. 2, 2017
ReservoirStorage in MAFPercent of Capacity
Lake Mead10.1939%
Lake Powell14.6860%
Combined24.8749%
MAF = million acre-feet

State Water Project (SWP)

For Calendar Year 2017 as of April 14, 2017
SWP ContractorRequest (AF)Approved Allocation (AF)Percent
Metropolitan Water District 1,911,500 1,624,780 85%
Hydrologic Conditions as of Sept. 30, 2017
Hydrologic IndicatorPercent of Average*
Northern Sierra 8-Station Precipitation Index189%
Northern Sierra Snowpack158%
Reservoir Storage Levels as of Oct. 3, 2017
ReservoirStorage in MAFPercent of Capacity
San Luis1.7083%
Oroville1.3037%
Combined3.0054%

*Percent average is for the water year to date