Metro Vancouverites may face unseasonably cold weather as February continues thanks to the stratospheric polar vortex.

In 2016, nearly 200 world leaders pledged to do everything possible to limit global warming to 1.5 degrees Celsius. Since ...

Europe may be in for another cold blast like the one that surprised forecasters and sent gas prices soaring last week, with the potential weakening of winds that keep frigid air confined to the Arctic ...

The vortex is essentially an area of low pressure in the upper layers of the atmosphere over the polar region up north. This ...

A decrease in pressure ridges over the past 3 decades is making the ice more uniform, with unclear consequences.

Punxsutawney Phil, the legendary weather-forecasting groundhog from Punxsutawney, PA, saw his shadow Sunday morning, thus ...

While Phil may see his shadow Sunday, forecasters haven't seen theirs. On average, February is Philly's snowiest month.

While temperatures will moderate slightly in February, another burst of Arctic air is expected in the second week of the ...

The long-range data shows we may be done with a true Arctic air mass similar to what we experienced in January. But we ...

Scientists say a warming planet may have been responsible for a winter storm that dropped 10 inches of snow on Northwest ...

In what feels like the first real winter we’ve had in years here in New York, an Arctic blast or polar vortex is partially to blame. The polar vortex is ...

Research has found that rising temperatures in the Arctic are weakening weather systems that normally trap the cold around ...