The two major atmospheric phenomena could influence U.S. weather in the coming weeks.

The effect this will have on U.S. weather remains uncertain. While other forecasters agree that a polar vortex ...

Despite a major disruption in the polar vortex that typically releases Arctic air, no frigid air outbreaks are coming to the ...

Forecast models show the polar vortex could reverse direction in early November, potentially influencing U.S. weather ...

Early forecast models indicate the polar vortex could experience a potentially record-breaking early disruption in November ...

El Niño can alter large-scale atmospheric circulation and influence the generation and propagation of planetary waves. These ...

Ohio could see Thanksgiving snow if El Niño and a polar vortex disturbance overlap in 2026, and forecasts indicate they might ...

A 'polar vortex collapse' could plunge parts of the US into bitter cold as forecasts point to a potentially record-breaking ...

Forecasters have warned that the global phenomenon could disrupt the polar vortex – a vast ring of freezing winds high above ...

Forecast models suggest a possible polar vortex disruption in November, but experts say Arctic air could reach parts of the ...

A strong polar vortex and a powerful El Niño would be signals that a milder winter may be in store for many Americans. Here's why.

The polar vortex and super El Niño can affect one another, changing winter conditions. Here's how North Carolina could be ...