Before June, the weather service had issued special weather statements about high temperatures. Now they trigger heat advisories.

With temperatures rising to around 86 degrees in Fairbanks, residents in Alaska got their first-ever heat advisory.

In the high glare of a summer evening in Fairbanks, Alaska, Ciara Santiago watched the mercury climb. A meteorologist at the National Weather Service office, she had the dubious honor of issuing the state’s first ever official heat advisory as temperatures were expected to hit the mid-80s.