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44 th Annual Mid-Pacific Region 2011 Water Users Conference Water Supply Outlook

44 th Annual Mid-Pacific Region 2011 Water Users Conference Water Supply Outlook Reno, Nevada January 26-28, 2011. Central Valley Project Operations Sacramento, CA Water Supply Outlook January 2011. Folsom Dam Flood Releases December 2010. 8-Station Index Precipitation.

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44 th Annual Mid-Pacific Region 2011 Water Users Conference Water Supply Outlook

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  1. 44th AnnualMid-Pacific Region2011 Water Users ConferenceWater Supply Outlook Reno, NevadaJanuary 26-28, 2011

  2. Central Valley Project Operations Sacramento, CAWater Supply OutlookJanuary 2011

  3. Folsom Dam Flood Releases December 2010

  4. 8-Station Index Precipitation Chart from California Data Exchange Center

  5. 5-StationIndex Precipitation Chart from California Data Exchange Center

  6. SierraSnow Pack Chart from California Data Exchange Center

  7. Chart from California Data Exchange Center

  8. Three-Month Precipitation Outlook Feb – Apr 2010 Chart from NOAA - CNRFC

  9. Current Reservoir Storages Chart provided by California Data Exchange Center

  10. CVP ReservoirStorage (TAF) January 24, 2011

  11. Key Water Supply Assumptions • Hydrology based on January 1 conditions • Operations to meet SWRCB WRD-1641 • Use of current Reasonable and Prudent Alternatives of NMFS BiOp and FWS BiOp • Use of approximately 270 TAF of Rescheduled Project water in San Luis Reservoir • San Joaquin River flows/Mendota Pool operations not included in supply • Capacity for Joint Point of Diversion operations at Banks Pumping Plant is not available • Water supply augmentation actions are available

  12. Key CVP Operations Points • San Luis Reservoir fills in early February • Jones Pumping Plant is at maximum capacity in July, August, and September • Roe Island water quality is not triggered for February (x2)

  13. Water Supply Outlook Stanislaus River 90% and 50% Exceedence100% Project Water (155,000 acre-feet)

  14. WY 2011 Water Supply Outlook *Municipal and Industrial supply is based on historical deliveries

  15. Shasta Reservoir Annual Inflow Projections • Inflow to date: 1,696 TAF • Average Inflow to date: 1,883 TAF • 90% Exceedence Projection: 4,960 TAF • 50% Exceedence Projection: 6,380 TAF • Historical WY Average: 6,107 TAF

  16. New Melones Reservoir Annual Inflow Projections • Inflow to date: 385 TAF • Average Inflow to date: 256 TAF • 90% Exceedence Projection: 1,126 TAF • 50% Exceedence Projection: 1,504 TAF

  17. Thank You

  18. South Central California Area OfficeFresno, CAWater Supply OutlookJanuary 2011

  19. 2011 Friant Division Outlook

  20. San Joaquin Basin Upstream Storages Edison Lake 75,728 AF 125,000 AF Mammoth Pool 85,836 AF 122,000 AF Crane Valley 22,895 AF 45,500 AF Florence Lake 38,067 AF 64,000 AF Huntington Lake 62,555 AF 89,000 AF Kerckhoff Reservoir 3,584 AF 4,188 AF Shaver Lake 28,553 AF 136,000 AF Redinger Lake 20,261 AF 26,000 AF Millerton Lake 396,666 AF 520,500 AF

  21. Note: January 25, 2011: 337,479 AF January 25, 2010: 323,839 AF Maximum Upstream Storage July 21, 2010: 576,964 AF 50%: 554,300 AF (July) 90%: 554,300 AF (July)

  22. Note: January 25, 2011: 396,666 AF January 25, 2010: 234,436 AF Maximum Lake Storage July 6, 2010: 496,382AF 50%: 520,400 AF (July) 90%: 497,450 AF (June)

  23. 2011 Cachuma Project Outlook

  24. Note: January 26, 2011: 174,959 AF January 26, 2010: 152,005 AF Maximum Lake Storage April 28, 2010: 178,075 AF 10%: 192,895 AF (April) 50%: 181,677 AF (March) 90%: 174,108 AF (Jan)

  25. 2011 Cachuma Project Water Supply Outlook 100% Water Supply – 25,714 acre feet

  26. Thank You

  27. Klamath Basin Area OfficeKlamath Falls, ORWater Supply OutlookJanuary 2011

  28. Klamath Basin Outlook

  29. Snowpack Average and Peak 1/26/2010 1/26/2011 Average Peak

  30. Natural Resources Conservation Service January Klamath Basin Forecast Average Probability (50% Exceedance) • Upper Klamath Lake Inflow (April – September) • 585,000 acre-feet • 114% of average • Clear Lake Inflow (February – July) • 125,000 acre-feet • 119% of average • Gerber Reservoir Inflow (February – July) • 55,000 acre-feet • 117% of average

  31. Thank You

  32. Lahontan Basin Area OfficeCarson City, NVWater Supply OutlookJanuary 2011

  33. Hundreds Attend Global Warming Protest

  34. Current Snowpack Conditions (Snow Water Equivalent)

  35. Total Precipitation To Date

  36. Soil Moisture Content • Soils are very wet • due to above avg. • precip. • Will improve runoff • potential in the • spring/summer • Similar conditions • in Tahoe and • Truckee Basins Jan. 01, 2011 near 60% Saturation 40% 30% Previous 4-Year Average 25% Range of Historical Data (shaded) Modified from NRCS

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