Water Supply Conditions, May 22, 2014

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Water Supply Conditions presentation provided at the May 22, 2014 San Diego County Water Authority Water Planning Committee Board Meeting.
Presented by Lesley Dobalian, Water Resource Specialist

Published in: News & Politics
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Water Supply Conditions, May 22, 2014

  1. 1. Final Snow Survey Location: Phillips Station near Echo Summit, Water Supply Conditions Water Planning Committee May 22, 2014 Presented by: Lesley Dobalian Water Resources Specialist
  2. 2. 2 “Year’s Final Snow Survey Comes Up Dry” DWR May 1, 2014 Press Release Manual and electronic readings recorded statewide snowpack’s water content at a mere 18% of average
  3. 3. 3 0% 25% 50% 75% 100% 125% 150% 175% 2006 2007 2008 2009 2010 2011 2012 2013 2014* 173% 53% 60% 65% 91% 146% 62% 59% 35% Average Water Year Statewide Runoff Percent of Average (Water Year: Oct 1 – Sept 30) *May 1, 2014 forecasted water year runoff
  4. 4. 4 MWD 2014 Water Supply and Demand Balance Water Balance Acre-Feet Total Supplies 858,000 Colorado River 755,000 State Water Project 103,000 Estimated Member Agency Demands 1,922,000 New Water Balance -1,064,000  Excludes Water Authority Colorado River Transfers  Negative balance made up through storage and other supplies  Actual balance may change as year progresses Source: MWD May 12, 2014 Water Surplus and Drought Management Plan Report
  5. 5. 5 Source: MWD May 12, 2014 Water Planning and Stewardship Committee  Due to reduced storage reserves, MWD may need to implement its Water Supply Allocation Plan in 2015 if conditions continue to be dry
  6. 6. 6 Fiscal Year Potable Water Use in Water Authority Service Area 20,000 40,000 60,000 Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Acre-Feet Water Use FY13 (AF) Water Use FY14 (AF) July – April of FY 2014 is 3% more than in FY 2013 Warmer Nov – Apr in FY 2014
  7. 7. 7 -2.0 -1.0 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Fiscal Year 2013 Fiscal Year 2014 Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Average Daily Maximum Temperature at Lindbergh Field - Departure from Normal (˚F) Hotter Cooler Ave Daily Max Temp: FY 2014: January – April was 4.2˚F warmer than normal
  8. 8. 8 Temperature Outlook June – August 2014 Summer Outlook “Chance of El Niño increases during the remainder of the year, exceeding 65% by summer.” May 12, 2014 Climate Prediction Center
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