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Winter temperature patterns during each of the 7 La Niña episodes since 1950 that were (1) among the 20 strongest La Niña episodes since 1950, and (2) the second winter of a double-dip La Niña, as in the upcoming winter. As in the second figure above, dark red colors indicate much warmer-than-normal conditions, and dark blue colors indicate much colder-than-normal conditions. Maps by NOAA Climate.gov, based on NCDC climate division data provided by the Physical Sciences Division at NOAA ESRL.