A powerful nor’easter is expected to impact parts of the East Coast this weekend, while a record-breaking El Niño and possible polar vortex intrusions could also shape weather across the U.S. in the ...
A stronger polar vortex is developing over the Arctic. Here's what it could mean for winter, including the role of a powerful El Niño.
A strong polar vortex and 'super' El Niño are developing, leaving experts split on how they could Tennessee winter.