Sea-Surface Temperature Anomalies: El Niño
OceansPhysical EnvironmentA composite of sea-surface temperature anomalies during El Niño from November to March during the following years: 1958, 1966, 1973, 1983, 1987, 1992, 1996, and 1998. When sea-surface temperatures in the tropical eastern Pacific rise well above normal, it is known as an El Niño event.
NOAASea-surface temperature anomalies during El Niño. The most intense warming (2 to 2.25 degrees Celsius, dark brown) occurs off the coast of South America. Cooler areas (negative 2.25 to negative 2 degrees Celsius, dark blue) are in the Arctic Ocean.
-0.25 to 0.25 | 0.75 to 1.0 | 1.0 to 1.25 | 1.25 to 1.5 | 1.5 to 1.75 | Less than 20°F | 20–29°F | 30–39°F | 40–49°F | 50–54°F | 55–59°F | Class | Rank | Kilotons per year | Virgil C Summer nuclear power plant | River Bend nuclear power plant | Clinton nuclear power plant | Donald C Cook nuclear power plant | Catawba nuclear power plant | Columbia nuclear power plant | Limerick nuclear power plant | Diablo Canyon nuclear power plant | Sequoyah nuclear power plant | LaSalle nuclear power plant | Byron nuclear power plant | Watts Bar nuclear power plant | McGuire nuclear power plant | Alvin W Vogtle nuclear power plant | Braidwood nuclear power plant | Comanche Peak nuclear power plant | Waterford nuclear power plant | Browns Ferry nuclear power plant | Callaway nuclear power plant | Wolf Creek nuclear power plant | Seabrook nuclear power plant | Susquehanna nuclear power plant | South Texas nuclear power plant | Peach Bottom nuclear power plant | Palo Verde nuclear power plant | Grand Gulf nuclear power plant | Prairie Island nuclear power plant | Robert Emmett Ginna nuclear power plant | Point Beach nuclear power plant | Nine Mile Point nuclear power plant | Monticello nuclear power plant | H. B. Robinson nuclear power plant | Cooper nuclear power plant | Turkey Point power station | Bruce nuclear power plant | James A Fitzpatrick nuclear power plant | Surry nuclear power plant | Oconee nuclear power plant | Arkansas Nuclear One nuclear power plant | Calvert Cliffs nuclear power plant | Edwin I Hatch nuclear power plant | Joseph M Farley nuclear power plant | Millstone nuclear power plant | Davis Besse nuclear power plant | Dresden nuclear power plant | Quad Cities nuclear power plant | Beaver Valley nuclear power plant | Brunswick nuclear power plant | Shearon Harris nuclear power plant | North Anna nuclear power plant | |
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0.311% | 1.20% | 0.159% | 0.444% | 2.10% | 69.8% | 31.1% | 23.3% | 22.8% | 21.0% | 7.07% | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |