El Nino Surfs Again

Image courtesy NASA/JPL Ocean Surface Topography Team

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Hold onto your surfboards, El Niño is experiencing a late-fall resurgence. A recent weakening of tradewinds in the western and central equatorial Pacific triggered a strong eastward wave of warm water known as a Kelvin wave. It’s headed to South America.

You can see the wave in the red-and-white line marking an area of sealevel in the central and eastern equatorial Pacific standing 4 to 7 inches higher than normal. That’s the result of heat expansion where sea surface temperatures have risen 2 to 4 degrees Fahrenheit above normal.

In contrast, the western equatorial Pacific is experiencing lower than normal temperatures, with sealevels 3 to 6 inches below normal. You can see that in the blue and purple areas.

The image was created with data collected by a US/French Space Agency satellite (the Ocean Surface Topography Mission/Jason-2 oceanography satellite) during 10 days this month.

Forecast: Everything gets wilder.
 

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In this election year unlike any other—against a backdrop of a pandemic, an economic crisis, racial reckoning, and so much daily crazy—Mother Jones' journalism is driven by one simple question: Will America will move closer to, or further from, justice and equity in the years to come?

If you're able to, please join us in this mission with a donation today. Our reporting right now is focused on voting rights and election security, corruption, disinformation, racial and gender equity, and the climate crisis. We can’t do it without the support of readers like you, and we need to give it everything we've got between now and November. Thank you.

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