wy 2015 – el niño to the rescue? urban water institute august 13, 2014
TRANSCRIPT
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WY 2015 – El Niño to the Rescue?
Urban Water InstituteAugust 13, 2014
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Talk Overview
• Current Drought Conditions
• El Niño and Northern California Outcomes
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20
40
60
80
100
120
1401-
Jan
1-Fe
b
1-M
ar
1-A
pr
1-M
ay
1-Ju
n
1-Ju
l
1-A
ug
1-Se
p
1-O
ct
1-N
ov
1-D
ec
California Reservoir Storage, Percent of Normal, 1977 and 2010-14
Source: California Department of Water Resources
2011
20102012
2013
1977
2014
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50 51 52 53 54 55 56 570
1020304050607080
2013
Annual Mean Temperature (degrees F)
Annu
al P
reci
pita
tion
(inch
es)
NOAA Climate Division 2 Calendar Year Data1895-2013
1976
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1950 1960 1970 1980 1990 2000 201048
49
50
51
52
53
54
55
8 Station Index Water Year Totals
Strong El Nino Moderate El Nino Weak El NinoEl Nino Average Period of Record Average
Drought Busting3
Holding Steady/Some Improvement10
Drought Continuing9
Prec
ipita
tion
in in
ches
Water Year (Oct 1 – Sep 30)
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1950 1960 1970 1980 1990 2000 2010 38
39
40
41
42
43
Strong El Ninos Moderate El Ninos Weak El NinosEl Nino Average Period of Record Average
San Joaquin 5 Station Index Precipitation Water Year Totals for El Nino Years
Drought Busting5
Holding Steady/Some Improvement4
Drought Continuing13Prec
ipita
tion
in in
ches
Water Year (Oct 1 – Sep 30)