October 23, 2009

For years, people have been pointing to El Niño as the culprit behind floods, droughts, famines, economic failures, and record-breaking global heat. Can a single climate phenomenon really cause all these events? Is the world just a step away from disaster when El Niño conditions develop?

August 30, 2009

The Southern Oscillation Index tracks differences in air pressure between the eastern and western sides of the tropical Pacific.

August 30, 2009

The Oceanic Nino Index tracks the sea surface temperature in the east-central tropical Pacific Ocean. It is NOAA's primary indicator of the climate patterns known as El Niño and La Niña. 

image of a diver placing a CTD sensor on a reef

It's been a tough year for the globe's coral and the scientists who use coral to paint a picture of ENSO back thousands of years. 

Guest blogger Amy Butler explains how changes in the stratospheric polar vortex can influence the "usual" effects of El Niño on the climate in the Northern Hemisphere.

The 2015-2016 El Niño will go down as one of the strongest on record, and also, thanks to El Niño Rapid Response Campaign, one of the best observed.

Is El Niño the Marcia Brady of climate variability? In this week's Beyond the Data blog, Jake Crouch talks about whether El Niño played a starring role in this winter's climate.

In this week's Beyond the Data blog, NCEI's Deke Arndt explains how comparing a record-setting warm streak from 2015 to one in 1944 is like comparing the tallest player in the NBA to the tallest kid in 2nd grade.

Where are my El Niño impacts?!

In the midst of the mega snowstorm bearing down on the East, NCEI's Deke Arndt looks longingly back at December's warmth in his latest Beyond the Data blog. 

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