Technically, the polar vortex refers to a band of winds that encircle the Arctic and keep the cold locked far to the North. But with that temperature spike, known as sudden stratospheric warming, the band can buckle, allowing frigid air to head south. Gas traders used to call it the “polar pig.”
That could mean chills anywhere in the Northern Hemisphere, though this year it’s likely to end up in the U.S. according to Ryan Truchelut, president of Weather Tiger LCC. A wave of deep cold could give the Great Lakes and East Coast their first real blast of frigid winter weather, along with a storm pattern that delivers snow storms as well.
It will be a big shift for the U.S., where winter has been a bit lackluster so far. In New York, January readings have been 5.1 degrees above normal through Thursday, and Chicago has been 7.2 degrees warmer for the month.
Still, there’s no guarantee it will happen. While a sudden stratospheric warming usually leads to a burst of frigid weather, sometimes the clockwork of gears in the atmosphere doesn’t deliver.
“Many times in the past, the forecast for a cold weather event across the country resulted in a false alarm,” said Jim Rouiller, lead meteorologist with the Energy Weather Group LLC.
Weather is indeed fickle so no one can be sure that the expected wintry weather will in fact arrive. However, it is worth considering that the global economy is attempting to recover and delivery drivers are more a part of the fabric of the economy than ever before.Click HERE to subscribe to Fuller Treacy Money Back to top