El Niño Outlooks

El Niño Outlook for October 2017

WeatherTiger’s October modeling has trended modestly cooler this month, with chances of at least a weak La Niña developing by December rising to well over 50%. La Niña is now likely to be strong enough to influence growing season precipitation distribution in South America, and potentially the U.S. winter pattern as well.

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El Niño Outlook for October 2016

Currently, the equatorial Pacific remains in a borderline weak La Niña state. However, the atmospheric measures of ENSO continue lagging the ocean, and though most of them have ticked a bit more towards Niña-like conditions in the past month, continuation of this trend is not certain.