Impact on North America's weather in March - An in-depth look at the forecasted polar vortex collapse and its potential effects on weather patterns across North America this March ...

Every state but Hawaii, California and Florida is likely to get a taste of wind chills of 20 degrees or colder.

growing weaker in the summer and strengthening in the winter. During winter in the Northern Hemisphere, the polar vortex often expands, pushing cold air southward along with the jet stream.

After Feb dumped a wave of unconditionally severe winter ... the Polar Vortex is disrupted - whether stretched, displaced, or split - it can, but does not always, impact this polar jet stream.

Learn more about polar vortex collapse - the weather phenomenon likely to cause cold snap across much of UK in coming weeks ...

A polar vortex collapse is predicted to bring severe winter-like weather to parts of ... A polar vortex is an upper-level jet stream that typically circulates around both the North and South ...

A polar vortex collapse is expected over the next two weeks, causing extreme winter weather and travel ... If the upcoming vortex disruption weakens the jet stream, it may release cold air from ...

The polar vortex always exists around the North and South Poles, weakening in the summer and strengthening in the winter ... air down south using Earth's jet stream - the narrow bands of wind ...