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Antarctica Heat Wave Brings Alarming Temperature Jump

An unusual influx of warm, wet air caused the highest-ever recorded leap above normal: a 70°F increase. 

Satellite imagery shows the collapse of the Conger ice shelf from February 22 - March 21, 2022.

Satellite imagery shows the collapse of the Conger ice shelf from February 22 - March 21, 2022.

Source: NASA

A heat wave in Antarctica earlier this month was so extreme that it may be the largest temperature increase above normal ever recorded, according to Robert Rohde, lead scientist at the nonprofit Berkeley Earth, who analyzed global records. ​​​​The temperature at Concordia research station, a European outpost in East Antarctica, measured almost 70° Fahrenheit (38.5° Celsius) hotter than normal on March 18, reaching a high of  11°F. (As warm as that is for the region, it’s still below freezing.) Though this isn't a category weather services track, Rohde said it may be the biggest margin ever.