Since Wednesday, high temperatures (well into the 70s) in Fairbanks, Alaska have outdone the highs (in the 60s to mid-70s) in Washington, D.C.
The Last Frontier is in the midst of an extended streak of record-challenging warmth that will continue through next week.
Alaska’s warmest temperatures, with respect to normal, have actually focused north and east of Fairbanks.
Barrow – Alaska’s northernmost city, located above the Arctic circle – has logged record highs four of the past five days, including a toasty 47 on Thursday. That’s some 18 degrees above normal.
Eagle, Alaska – located about 200 miles east of Fairbanks – has recorded six straight days with highs in the 80s.
A massive bulge in the jet stream over our 49th state has allowed a heat dome to build over the past several days.
Andrew Freedman, at Mashable, explains the sequence of weather events leading up to this amplified jet stream configuration:
This upside-down weather pattern was triggered by a series of massive typhoons that formed in the Northwest Pacific Ocean, including Super Typhoons Noul and Dolphin. The Northwest Pacific has already had three Cat. 5 super typhoons, including both Noul and Dolphin, the latter of which topped out at a 160-mile-per-hour super typhoon.
. . .
For the jet stream, the storms can function as a kind of injection of steroids — causing it to amplify and contort itself into large north-south undulations.
The forecast is for this pattern to persist for the next 7-10 days, at least. So it stands to reason many more warm weather records will fall.