Recent atmospheric patterns don't match those that typically precede a sudden stratospheric warming event. But forecasts do suggest the polar vortex might get stretched out of shape in coming weeks.
What a Polar Vortex Is, and Why It Can Be Dangerous
GET READY, WINTER IS WAKING UP
Polar Vortex And Polar Jet Stream Are Facing An Earth-Changing
An early Polar Vortex Disruption Event is coming, with a strong
A strong Stratospheric Warming event is about to start, impacting
POLAR VORTEX? What Is It And Why Does It Matter
polar vortex NOAA
Explainer: The polar vortex, climate change and the 'Beast from
Polar vortex' may blanket US with arctic weather in January
A sudden stratospheric warming event may disrupt the polar vortex
An early Polar Vortex Disruption Event is coming, with a strong
The Polar Vortex is unusually cold and strong, but Stratospheric
El Niño and the stratospheric polar vortex
Sudden stratospheric warming, polar vortex disruption could mean