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The rainfall during the winter has put an end to the drought in California. The plots below show tha drought monitoring maps from February 2014, 2015, 2016 and 2017.
The plot below show the accumulated precipitation for 8 stations in northern California from http://cdec.water.ca.gov/cdecapp/precipapp/get8SIPrecipIndex.action
3. Predictability
3.1 Data assimilation
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