Polar Vortex Maps Point to a Fresh Blast of Arctic Cold

Polar Vortex Maps Point to a Fresh Blast of Arctic Cold

Polar Vortex Maps Point to a Fresh Blast of Arctic Cold

So, the big story right now is that just as this week’s burst of cold air finally starts to ease up, another, even sharper wave of frigid air is already lining up for next week. And what we’re seeing on the polar vortex maps makes it clear: the cold isn’t done with us yet.

Today’s temperatures may feel slightly better in some places, but it’s really just a brief pause. Cities like Chicago, New York, and Washington D.C. are still dealing with seasonably cold, blustery conditions. Wind chills are expected to hover in the mid-20s around Chicago, the mid-30s in New York City, and the mid-40s in D.C. It’s an improvement from earlier in the week, but definitely not warm.

Along the I-95 corridor, from Washington to New York, a quick burst of light snow passed through overnight. Most areas only picked up a light dusting, with a few spots seeing up to half an inch. That wasn’t enough to cause major issues, but some slick patches were possible early in the morning before conditions gradually improved.

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But the bigger story is what’s coming. Another punch of cold air is expected to drop the Midwest and the Northeast back toward freezing daytime highs and lows near or even below zero by Monday. Meanwhile, the West is expected to warm up—some places may even approach record-breaking temperatures next week. So, it’s one of those weeks where the country is split between deep freeze and unexpected warmth.

A fast-moving snowstorm is already developing and will slide through the Dakotas and Nebraska before moving into Wisconsin and Illinois by Sunday. Areas in Iowa and southern Minnesota are in the bull’s-eye, where 3 to 7 inches of snow may accumulate. Several communities, including Fort Dodge, Waterloo, and Mason City, are under Winter Storm Warnings.

By Sunday evening, snow could begin falling in Chicago and Milwaukee, with accumulations around 3 to 4 inches—higher amounts west of the cities. From Montana through the Dakotas and into southern Wisconsin and northern Illinois, 1 to 3 inches of snow are expected.

Farther west, the Rockies are being hit hard again, with heavy mountain snow continuing through the weekend. Higher elevations in states like Idaho, Montana, Colorado, and Utah could see more than a foot of snow, with some isolated areas getting over two feet.

As this system shifts east, it sends another blast of cold air into the Northeast, though most of the snow there will be limited to normal lake-effect activity. The cold will linger through much of next week, and there’s even the possibility of a fresh surge of Arctic air by next weekend, keeping this active winter pattern fully alive as the middle of December approaches.

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