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Images related to El Nino Conditions Set in Across Pacific Ocean

El Niño Strengthens in November 2009
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El Niño Strengthens in November 2009

These color-coded images show the strengthening of El Niño between October and November 2009. In the November image, warm waters (indicated in red) have spread across the Pacific.

Image of the Day Heat Water

El Niño Should Be Near Its Peak
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El Niño Should Be Near Its Peak

Past events suggest the phenomenon winds down after December and January. But will this year follow the pattern?

Image of the Day Heat Water

La Niña Makes a Quiet Return
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La Niña Makes a Quiet Return

Cooler than normal conditions prevail in the central and eastern Pacific, but the event is so far considered weak.

Image of the Day Water Remote Sensing

Muted La Niña Follows Potent El Niño
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Muted La Niña Follows Potent El Niño

The near-record water temperatures of 2015-16 has been followed by a modest, quiet appearance of La Niña.

Image of the Day Water

El Niño Conditions Are Growing Stronger
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El Niño Conditions Are Growing Stronger

Weakening trade winds are allowing warm water to move east across the Pacific in a telltale pattern.

Image of the Day Heat Water

Weak El Niño, but Hints of Pacific Change
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Weak El Niño, but Hints of Pacific Change

Ocean conditions are not likely to help drought-stressed regions this spring. However, some broader changes might be coming in the Pacific.

Image of the Day Heat Water

La Nina and Pacific Decadal Oscillation Cool the Pacific
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La Nina and Pacific Decadal Oscillation Cool the Pacific

The cool water anomaly in the center of the image shows the lingering effect of the year-old La Niña. However, the much broader area of cooler-than-average water off the coast of North America from Alaska (top center) to the equator is a classic feature of the cool phase of the Pacific Decadal Oscillation (PDO).

Image of the Day Heat Water

Is El Niño Developing?
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Is El Niño Developing?

Conditions in May 2014 look similar to those in May 1997, a year that brought one of the most potent El Niño events of the 20th century.

Image of the Day Water

Under the Surface of El Niño
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Under the Surface of El Niño

With its own forms of underwater weather, the ocean has fronts and circulation patterns that move heat and nutrients around its basins. Changes near the surface often start with changes in the depths.

Image of the Day Heat Water Remote Sensing

El Niño Strengthening
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El Niño Strengthening

With each passing month, 2015 looks more and more like 1997.

Image of the Day Heat Water

La Niña comes to a close
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La Niña comes to a close

After appearing for two consecutive winters, La Niña appears to be taking some time off.

Image of the Day Heat Water