More than 170 million people in the United States are currently experiencing below-average temperatures, and it looks like even colder weather is on the horizon due to the shifting polar vortex. This phenomenon may lead to prolonged winter conditions, causing the coldest air to linger over North America.
The polar vortex usually keeps the coldest air trapped near the Poles. However, in its current state, it has elongated instead of weakening significantly. This means that cold air is being spread out rather than concentrated in one area, leading to extended cold spells.
As a result, the displaced polar vortex will keep North America feeling the chill, especially in the eastern regions of the Lower 48, for the rest of January.
Looking ahead, forecasts indicate that the two segments of the polar vortex might merge, which could reinforce the overall vortex. If the center of the polar vortex shifts away from the poles and moves toward Canada, it may create a direct route for those frigid temperatures to sweep into the U.S.
The first cold wave from this system is anticipated to move across Canada by late next week, eventually pushing southward into the U.S. as January wraps up.
The severity of the cold is still uncertain, but the best chance for extreme temperatures seems to be from the northern Rocky Mountains, through the Northern Plains and Great Lakes, extending to the Northeast.
January’s Deep Freeze Reaches Florida
The broader movement of the polar vortex could sustain a lengthy cold wave for millions across the northern states, making this January feel particularly frigid. As we approach the middle of the month, many areas are witnessing significant drops in temperature, reaching below the seasonal norms, even down to Florida.
By Thursday, forecasts suggest the jet stream will dip southward, dropping temperatures by 10 to 20 degrees below average across much of Florida. Only in Miami will temperatures hover around the usual averages, according to insights from the prediction center.
Friday morning is projected to be the chilliest of the week, with temperatures dipping below freezing in places like Jacksonville and Daytona Beach.
For perspective, Tallahassee could see temperatures as low as 26 degrees, while Denver, about 2,630 miles away and at a higher elevation, is expected to hit 27 degrees.
As this arctic air mass arrives, over 170 million Americans will be dealing with subpar temperatures. The Great Lakes and Northeast will certainly feel the effect, but the most significant shifts will occur in the Southeast. Cities such as Nashville, Atlanta, and Louisville may see afternoon highs barely creeping above 40 degrees.
A particularly harsh cold front is set to hit the Upper Midwest on Saturday, with highs struggling to possibly reach the teens. This icy weather is likely to persist through the weekend and into early next week, accompanied by wind chills dropping to minus 10 to minus 20 degrees in Minneapolis and Chicago by Sunday.
Fans attending NFL Divisional Playoff games in Chicago that Sunday night could experience one of the coldest Bears playoff games on record.
