When the vortex weakens—which it does on occasion—the jet stream becomes wavy, bulging south and allowing Arctic air to flow down across North America and Eurasia, causing temperatures to ...

When the polar vortex is strong, the jet stream tends to flow more powerfully and steadily ... the jet stream can become more wavy and less stable, allowing cold polar air to spill southward ...

The Polar Vortex is that counterclockwise flow of cold air that remains in place ... it starts to get wobbly and wavy allowing for cold air to spill into the pockets of the waves making parts ...

Is this stream of cold air "a polar vortex?" Not in the truest ... south and can speed up the westerly flow of the jet stream ...

a wavy jet stream can mean the difference between a mild winter day and a bone-chilling freeze. Understanding these dynamics ...

Instead, we observed a clear wavy motion of the vortex core, namely Kelvin wave excitation ... This means that superfluids ...

When the vortex weakens—which it does on occasion—the jet stream becomes wavy, bulging south and allowing Arctic air to flow down across North America and Eurasia, causing temperatures to ...