The Polar Vortex in the upper atmosphere has disintegrated after the intense warming of the stratosphere in mid-March.

Overnight low temperatures in the upper 50s are normal for February, not April, but we may see them this weekend in South ...

What is a polar vortex, the weather event causing winter storms in the US? The expanding of the polar vortex – an area of cold air around the Arctic – southwards is causing cold spells in the US.

Related Already stung by reduced crop estimate, Florida citrus industry now faces polar vortex California ... While the orange juice industry in the United States faces an uncertain future ...

Pastelok said a polar vortex displaced earlier this month, in combination with the weather patterns setting up from the Pacific across the United States — starting from the Northwest ...

Cold weather is expected to blanket New York through mid-April, bringing the chance of freezing temperatures, snowfall, as ...