![el nino united states graphic](https://media.cnn.com/api/v1/images/stellar/prod/150813111830-el-nino-united-states-graphic.png?q=x_2,y_0,h_1185,w_2107,c_crop/w_1280)
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The science behind El Niño
What exactly is El Niño? CNN's Jennifer Gray explains this weather phenomenon that happens between the Pacific Ocean and the atmosphere.
01:26
- Source:
CNN
El Niño weather impacts
10 videos
![People take part in water battles as they celebrate Songkran - the Thai new year - in Bangkok on April 13, 2016.
Thais and tourists took to the streets on April 13 to drench each other in the mass water fight that marks the country's new year festival Songkran, as authorities attempted to crack down on alcohol, topless dancers and other "indecencies".](https://media.cnn.com/api/v1/images/stellar/prod/160414100508-04-thai-new-year.jpg?q=x_5,y_470,h_2767,w_4917,c_crop/w_250)
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Thailand's New Year celebration is all about the splash
![europe wild weather holmes pkg_00010909.jpg](https://media.cnn.com/api/v1/images/stellar/prod/151228003710-europe-wild-weather-holmes-pkg-00010909.jpg?q=x_201,y_3,h_789,w_1402,c_crop/w_250)
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El Niño to blame for wild weather around the world
![south america flooding howell seg_00004015.jpg](https://media.cnn.com/api/v1/images/stellar/prod/151227060042-south-america-flooding-howell-seg-00004015.jpg?q=x_2,y_0,h_1078,w_1915,c_crop/w_250)
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Flooding forces more than 150,000 people from homes