1.
Presentation by:
Alexi Schnell, Water Resources Specialist
Water Planning Committee
January 22, 2015
Water Supply and Drought
Management Update
Photo: California Weather Blog/ Bartshé Miller

2.
2
SWP Allocation for 2015
 Initial allocation of 10% of requested deliveries
 Revised allocation of 15% (announced Jan. 15)
 May change based on volume of rain and snow the
remainder of this winter
Year SWP Final
Allocation
2014 5%
2013 35%
2012 65%
2011 80%

3.
3

4.
4
Sierra Snowpack Conditions
Snowpack
Area
Percent of
Normal for
Jan. 20, 2015
Northern Sierra 34%
Central Sierra 31%
Southern Sierra 31%
Statewide 31%

5.
5

6.
Percentage of State in Exceptional Drought
January
(39%)
(as of Jan.13)
November
(55%)
December
(32%)
6

7.
7
Colorado River Hydrologic Conditions
January 20, 2015
 Water year 2015 precipitation
 85% of average (9.1 inches)
 Basin snowpack water content
 93% of average
 Combined storage in Lake Mead
and Lake Powell
 2015: 22.2 MAF, 44% Capacity
 2014: 22.5 MAF, 45% Capacity

8.
8
Local Service Area Conditions
 Local reservoir storage on December 29, 2014 was
approximately 237,906 AF, or 41% of capacity
Water Year 2015 Precipitation
Through January 20, 2015
Station Actual in. % Normal
Lindbergh Field 5.24 119%
Ramona Airport 5.23 80%

9.
9
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 FY14 (AF) Water Use FY15 (AF)
Figures include urban and agricultural water use.

10.
10
Average Daily Maximum Temperature at
Lindbergh Field – Departure from Normal (oF)
-2.0
0.0
2.0
4.0
6.0
8.0
Fiscal Year 2014 Fiscal Year 2015
Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun
Hotter
Cooler

11.
Precipitation Outlook
January 23 – 29, 2015
11

12.
Precipitation Outlook
February 2015 – April 2015
12

13.
Temperature Outlook
February 2015 – April 2015
13

14.
14