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The two conditions that youThe two conditions that you identify are separate and, while the may influence each other, are also affected by other weather systems as well. For specific definitions of the El Nino/La Nina, which occur in tropical waters and the Pacific Decadal Oscillation, which refers to the currents in that entire body of water, please see the following pages: • •ño-and-la-niña To find even more material on these topics, we invite you to search with the word “nino.” We hope this helps! Thank you for your interest in the Old Farmer's Almanac and our Web site.

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