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Sea-Surface Temperature Anomalies: El Niño

OceansPhysical Environment

A 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.

NOAA

Sea-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.

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Sea-Surface Temperature Anomalies: El Niño

Average Distribution of Dew Point Temperatures, January

Cold Front

Tropical Cyclone Zones

Major Drainage Basins

-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

Cold Front

Tropical Cyclone Zones

Atlantic Ocean Seaboard

Baja California

California

Churchill

Columbia and Northwestern United States

Fraser

Great Basin

Gulf Coast

Gulf of Mexico, North Atlantic Coast

Hudson Bay Coast

Mackenzie

Mexico, Northwest Coast

Mississippi - Missouri

North America, Colorado

Northwest Territories

Pacific and Arctic Coast

Río Grande - Bravo

Saskatchewan - Nelson

St John

St Lawrence

United States, North Atlantic Coast

Hawaii
1.74%1.20%0.113%0.444%2.10%
Alaska
0.318%98.0%
Arizona
32.8%60.8%2.30%4.47%95.5%
Utah
93.9%5.41%5.42%0.394%51.8%47.8%
Yukon
26.5%73.4%
Northwest Territories
54.6%44.0%0.207%
District of Columbia
100%100%
Florida
0.596%14.7%56.6%21.0%7.07%3.68%2.91%98.4%
Idaho
84.3%6.93%95.7%4.03%0.316%
New Hampshire
100%99.7%0.302%
Rhode Island
4.64%3.92%92.6%
Vermont
99.7%42.4%53.3%4.27%
Washington
0.513%29.2%45.9%22.8%70.9%27.9%
Wyoming
100%5.11%1.48%72.4%21.0%
Nunavut
0.352%0.205%96.5%
Montana
99.9%17.1%82.4%0.445%
Maine
0.133%99.5%75.6%23.3%
North Dakota
100%58.0%42.0%
Kentucky
3.74%91.2%100%
Nova Scotia
0.847%94.2%
Virginia
0.126%20.5%1.66%25.9%17.7%55.4%
Delaware
0.762%99.1%97.0%
Prince Edward Island
1.25%0.264%61.9%
Saskatchewan
19.8%2.89%31.0%46.3%
Mississippi
21.7%78.0%0.303%50.1%49.8%
West Virginia
67.8%31.4%84.7%15.3%
Nebraska
100%2.25%100%
Texas
0.183%10.9%44.9%29.3%14.1%64.1%17.3%18.4%
Missouri
80.4%18.4%100%
Louisiana
0.184%61.7%37.9%2.07%5.73%1.66%91.0%
North Carolina
0.319%84.2%3.43%0.888%85.7%12.8%
Oregon
27.3%19.8%23.7%6.40%91.0%2.50%
New Brunswick
0.522%58.6%40.2%
Alabama
29.3%1.30%86.2%13.6%
New Mexico
81.8%1.03%4.48%7.00%14.8%19.5%54.2%
Kansas
96.6%3.36%5.13%100%
Wisconsin
99.5%69.3%30.7%
British Columbia
0.126%9.53%22.5%31.2%35.7%
Newfoundland and Labrador
0.392%75.3%22.1%0.795%
New Jersey
0.329%73.8%25.8%97.8%
South Carolina
41.6%58.3%99.9%
Michigan
98.1%100%
Alberta
66.5%0.906%2.66%29.9%
Connecticut
99.9%99.0%1.05%
Pennsylvania
99.4%34.4%1.43%64.1%
Colorado
100%5.40%56.1%36.7%7.14%
Nevada
73.6%6.36%3.75%5.41%80.0%10.9%
Massachusetts
1.78%98.2%0.220%91.1%2.45%
Georgia
26.7%54.5%18.7%97.1%2.66%
New York
0.105%96.9%0.410%4.00%49.4%45.5%
Maryland
0.874%34.3%32.0%4.25%93.5%
Québec
7.79%0.358%64.3%0.386%26.7%
Manitoba
17.7%34.5%47.7%
Oklahoma
17.8%81.3%100%
Tennessee
100%99.9%
Ontario
1.22%61.9%11.8%26.2%
California
0.110%10.8%23.3%1.46%0.273%94.9%0.130%1.98%2.37%
Arkansas
79.0%21.0%100%
South Dakota
100%99.2%0.773%
Ohio
96.3%3.50%71.3%28.7%
Indiana
92.1%7.40%89.5%10.5%
Minnesota
100%6.20%57.4%35.3%7.33%
Iowa
100%3.53%100%
Illinois
94.0%5.95%98.7%1.31%
0.16.0