The polar vortex can dip into North America mainly due to a weakened jet stream. In the mid-latitudes, the Twin Tiers is in the mid-latitude, the jet stream is called the prevailing westerlies as ...

The term “atmospheric river” was coined in 1994 and has since quickly gained popularity. But what does it really mean?

The images below show how the influence of climate change from as far away as the mid-latitudes can trigger an outbreak of arctic air over the United States weeks to months later. Unable to view ...

The weather phenomena are common for California winters, but they could cause dangerous debris flows or mudslides in recently ...