The jet stream In Canada, the polar jet stream is responsible for many of our weather patterns. It is a narrow band of fast-moving air in the upper atmosphere that can help direct our weather systems.

A persistent, quasi-stationary high pressure system off the West Coast has caused the jet stream to flow from the northwest down into the southeast, helping to bring frigid temperatures that have ...

The Southern Hemisphere’s eddy-driven jet (EDJ), a critical force shaping weather patterns across South America, Southern Africa, Australia, and Oceania, is undergoing significant changes. This ...

For the next week or two, the jet stream crossing the North Pacific will be abnormally straight and strong. The strongest swath will surpass 200 km/h, and stretch nearly 12,000 kilometres from the ...

In recent months, the jet stream’s patterns trapped and stalled a ridge of high pressure over northern Canada, which caused a heat wave and primed the landscape for the wildfires that later sent ...

Strong jet streams across the Atlantic are seeing passenger airplanes knock more than an hour off their flight times, as they hit speeds of 761 mph – the speed of sound. However, they’re not ...

An unusually wavy jet stream — a ribbon of fast-moving air that flows over the Northern Hemisphere — is to blame for an Arctic onslaught that is blasting most of the United States with snow ...