Cold in the eastern U.S. can be a side effect of a sudden stratospheric warming event. But how reliable is it?
Laura Ciasto
After a brief respite, the stratospheric polar vortex is expected to weaken again, and another major sudden stratospheric warming could be on the way.
A major disruption of the stratospheric polar vortex occurred. What happens next? The stratosphere will try to communicate its artistic vision down to the troposphere, but the troposphere may have its own masterpiece in mind.
The latest forecast says a major disruption of the polar vortex is on its way, but the stratosphere has been acting up for a while. Our bloggers explain what it might mean for U.S. weather.
Most models predict that the polar vortex will remain slightly weaker than average through December. Others say a full-on breakdown remains in the cards.
If this blog teaches you one thing, we want it to be this: "polar vortex" is not a synonym for "cold snap."

Our guest blogger, Laura Ciasto, goes over why you need to be attentive to UV radiation if you want to safely enjoy the great outdoors.