To forecast winter rainfall in Los Angeles, look to New Zealand in the summer

An agricultural field in California being irrigated. Variability in El Niño cycles was long considered a reliable tool for predicting winter precipitation in the Southwest United States, but its forecasting power has diminished in recent years.
In a study published today in Nature Communications, National Science Foundation (NSF)-supported scientists at the University of California, Irvine (UCI), have found a new method to project wet or dry conditions for the winter ahead.
"Influences between the hemispheres ... More at https://www.nsf.gov/news/news_summ.jsp?cntn_id=245408&WT.mc_id=USNSF_51&WT.mc_ev=click
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