Stratospheric warming events are dramatic, rapid increases in wintertime stratospheric temperatures that disrupt the polar vortex and modify the propagation of atmospheric waves. These events, ...

Right now, cold air high above Antarctica is up to 35ºC warmer than normal. Normally, strong winds and the lack of sun would keep the temperature at around –55°C. But it's risen sharply to around ...

The polar vortex is stirring up, bringing the earliest hints that the weather is changing with the new fall season. When is the first frost in Tennessee?

Sydney's days have been so hot this October that the city is currently on track to break the average maximum temperature ...

The polar vortex is stirring up, bringing the earliest hints that the seasons are changing. That shift is most noticeable in northern Wisconsin, where a frost advisory was in effect early Monday, Sept ...

North Carolina's first freeze typically occurs between late October and mid-November, depending on the specific location. The ...

Despite severe storms forecast for the east coast today, October temperatures are expected to remain above average for the rest of the month.

Statewide average temperatures were 3.29°C above average in Queensland and 2.82°C above average in the NT in Australia's third-hottest October on record.

This month could become the hottest October on record – and may also beat the record for November – with a scorcher forecast ...

A sudden stratospheric warming is expected to occur in the coming months, which could bring the 'beast from the east' back to the UK ...

The polar vortex is beginning to stir, signaling a gradual shift toward cooler fall weather in the northern U.S. Tennessee is expected to see mild temperatures through December, with the average first ...