When the Polar Vortex is in a weakened state, a jet stream wobble sending polar air into the mid-latitudes becomes more ...

A strong, stable vortex is like a skater spinning with their arms tucked closely in, holding in an area of cold air over the Arctic. But when there’s a wobble in the rotation, winds in the vortex can ...

Maps show what to expect as the cold front arrives. The polar vortex is a large area ... During the winter months and when the jet stream allows, this cold air can drop farther down into lower ...

Winter in the CSRA is usually mild overall, but every now and then, we get a taste of true Arctic air. If you’ve ever ...

As the Arctic rapidly warms, the temperature difference between the polar region and lower latitudes decreases, which weakens ...

With last week's freeze being the second time temperatures dipped below freezing this winter, many are wondering if this ...

Jet streams are air currents formed by the collision of warm tropical air and cold polar air in the atmosphere, plus the rotation of the planet. When meteorologists in North America mention “the ...

According to the NWS, the Arctic polar vortex is a powerful band of west-to-east winds that develops in the stratosphere, ...

(KNWA/KFTA)— After a strong cold front comes through this Saturday ... One way the airmass can be pushed towards us has to do with the polar jet stream and involves the Polar Vortex.

“Typically going from west to east, and formed at the boundary between significantly different air temperatures, like between cold polar air and warmer tropical air.” “The jet stream is ...