India, April 6 -- The Polar Vortex in the upper atmosphere has disintegrated after the intense warming of the stratosphere in mid-March. Currently, its remains are traveling eastward across Canada to the United States. Early this week, a major cold event will be produced due to its powerful lobe throughout the Northeast and Great Lakes.

The Polar Vortex's collapse will cause a major Arctic blast from central Canada into the Northeast United States, even if a progressive and dynamic weather pattern will persist across North America into April.

Tornado season is intensifying further south in the United States, where the current weather pattern has caused multi-day bouts of severe weather. The big storm clusters that moved from the mid-Mis...