Is the Latest Arctic Blast a Sign of a Fast Start to Winter?

A perfect storm of two weather elements could translate to a fast start to winter across portions of the country. What are these two elements, and how will they influence how early winter settles in across the eastern U.S.? Read on for all of the details.

Early-Season Winter Temperatures a Sign of Things to Come?

This week's early-season blast of Arctic air is just a preview of what is to come along the edge of the country. The pairing of La Niña and the easterly Quasi-Biennial Oscillation (QBO) is forecast to get winter off to a quick start for the millions of Americans.

Forecasters are warning that the two weather patterns known as La Niña and an easterly QBO will pave the way for more rounds of Arctic air to filter down into North America. This frigid air, known in meteorological circles as the "polar vortex," is usually trapped well above the North Pole. This air in the polar vortex typically hovers in the stratosphere about 10 to 30 miles above the Earth's poles, strengthening during the winter season when a lack of sunlight brings the air temperatures down to negative 70 degrees Celsius.