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

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.

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