Record-Breaking Heat in Alaska Wreaks Havoc on Communities and Ecosystems

Alaska in March is supposed to be cold. Along the north and west coasts, the ocean should be frozen farther than the eye can see. In the state’s interior, rivers should be locked in ice so thick that they double as roads for snowmobiles and trucks. And where I live, near Anchorage in south-central Alaska, the snowpack should be deep enough to support skiing for weeks to come. But this year, a record-breaking heatwave upended norms and had us basking in comfortable—but often unsettling—warmth.

This spring, temperatures in Alaska and northern Canada
 have been significantly higher than usual. Red indicates
 areas warmer than average while blue indicates colder
 than average. The darker the red, or blue, the greater
the deviation from average.

Across Alaska, March temperatures averaged 11 degrees Celsius above normal. The deviation was most extreme in the Arctic where, on March 30, thermometers rose almost 22 degrees Celsius above normal—to 3 degrees. That still sounds cold, but it was comparatively hot.

“It’s hard to characterize that anomaly, it’s just pretty darn remarkable for that part of the world,” says Rick Thoman, a climate specialist with the Alaska Center for Climate Assessment and Policy in Fairbanks. The state’s wave of warmth was part of a weeks-long weather pattern that shattered temperature records across our immense state, contributing to losses of both property and life. “When you have a slow grind of warming like that, lasting weeks or months, it affects people’s lives,” Thoman says.

Read the Smithsonian story by Tim Lydon - “Record-Breaking Heat in Alaska Wreaks Havoc on Communities and Ecosystems.”