<ul><li>Atmospheric rivers, narrow streams of moisture-rich air, have been found to bring unusually warm temperatures.</li><li>A survey of 43 years' worth of data shows that atmospheric rivers can raise surface temperatures up to 15 degrees Celsius above normal.</li><li>On average, temperatures associated with atmospheric rivers are about 5 degrees Celsius higher than expected for the region's climate.</li><li>The warm temperatures are mainly caused by carrying warm tropical temperatures to cooler regions.</li></ul>

Atmospheric Rivers Raise Temperatures

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