It’s really, really cold again – as the US shivers through at least the eighth blast of air from the Arctic this winter. Here ...

Meteorologists warn that the coldest burst of Arctic air this season is coming to put an icy and prolonged exclamation point ...

Scientists say it’s being caused by a misbehaving polar vortex combining with a key ... and is driving this week’s cold, according to Judah Cohen, director of seasonal forecasting at ...

A few atmospheric factors — including the polar vortex — have come together ... and is driving this week’s cold, according to Judah Cohen, director of seasonal forecasting at Atmospheric ...