An April cold snap is expected to bring unusually cold temperatures to the eastern half of the US next week. The cold snap could impact new spring vegetation and lead to frost in some areas.

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.

Accuweather Senior Meteorologist Paul Pastelok says the March polar vortex disruption is one of the largest meteorologists have seen in a long time. A polar vortex is a large area of low pressure ...

After a few brighter, lighter, and warmer days, you could be forgiven for thinking the worst of the winter weather ... due to a phenomenon known as a polar vortex collapse, which is keeping ...

Is this anything to do with the Polar Vortex? Actually no - despite what some reports are suggesting. The drop in temperatures this week is due to change in wind direction. So what is the Polar ...

Weather patterns this month are being shaped by the collapse in March of a band of high-altitude winds known as the polar vortex. That occurred earlier than usual this year, triggering a ...

The worst of the storm system is set to hit on ... and floods pummeling most of the country. In February, a 'polar vortex collapse' left a mess across much of the US, bringing feet of snow ...

Article continues below The Met Office explained: “This phenomenon is characterised by a reversal of winds, the stratosphere polar vortex, high up in the stratosphere. These winds are currently ...