“We’re seeing this weather whiplash here in the fall, where it can be so warm, it can have record warm temperatures, and then very quickly we can transition into a very cold period,” Judah Cohen, director of seasonal forecasting at Atmospheric and Environmental Research, told Yahoo News.
“It’s staying warm later, for sure,” Matthew Barlow, a professor of climate science at the University of Massachusetts Lowell, told Yahoo News. “We’ve actually looked in the Northeast for fall weather patterns, and you can see that you get summer patterns later into fall.” “Climate change — but specifically the changes in the Arctic — lead to more disruptions of the polar vortex, where the polar vortex kind of stretches, or elongates, like a rubber band,” Cohen said. “And we’re definitely seeing an increase in those types of events in October through December.”