The new year is kicking off with a serious chill as Arctic air, driven by a polar vortex originating in Siberia, prepares to blanket much of the United States. According to The Washington Post, this frigid air mass is expected to arrive Monday night, spreading to the East Coast by Wednesday.
What is the polar vortex and its impact?
The polar vortex refers to a blast of cold air typically confined to the North Pole. Occasionally, this frigid system shifts southward, bringing bone-chilling temperatures to the U.S. This year, a third surge of Arctic air is predicted to make the vortex especially impactful.
When and where to expect arctic blasts
The first surge of Arctic air is slated to arrive early this week, followed by a second wave over the weekend. By next week, a third blast will hit the Midwest and the Eastern Seaboard, plunging temperatures to subzero levels across at least 30 states.
Three main surges of Arctic air are forecast over the next two weeks, each one being more substantial than the last.The surge around Jan. 10 may come with a lobe of the polar vortex and has the highest potential to send temperatures plummeting.Cold, colder, coldest: pic.twitter.com/GbfHhe0Hay— Ben Noll (@BenNollWeather) December 30, 2024
Snowfall predictions and affected areas
While widespread snowfall isn’t expected, regions near Lakes Ontario and Erie could face significant snow accumulation. Areas like the Tug Hill Plateau and south of Buffalo are likely to see heavy lake-effect snow due to the frigid air interacting with the lakes’ warmer waters.
How long will the cold spell last?
Prepare to bundle up for an extended period. Meteorologists predict the Arctic chill could linger for the first three weeks of January. While much of the East will bear the brunt of the cold, the West and Alaska are also expected to experience below-average temperatures.