According to the NWS, the Arctic polar vortex is a powerful band of west-to-east winds that develops in the stratosphere, about 10 to 30 miles above the North Pole, during the winter season. It is ...
La Niña, which means "little girl" in Spanish, is a weather pattern that can impact winter temperatures, according to NOAA. "During La Niña events, trade winds are even stronger than usual ...