Forecast CentreThe Weather Network Published on Jan. 31, 2025, 6:15 PM Groundhog or not, winter is here to stay for a while longer yetAre we in for an early spring or six more weeks of winter? We’ll soon be inundated with a variety of predi...
One of the keys to the pattern change is the polar vortex which is expected to split into two parts, and one piece is expected to be over Northern Canada through mid-January. If you look closely at the top of the graphic above, you can see some blue and...
The polar vortex is a large area of low pressure and cold air surrounding the Earth's North and South poles. The term vortex refers to the counter-clockwise flow of air that helps keep the colder air close to the poles (left globe). Often during winter in...
Antarctic polar vortexpassively advected tracerswind fieldsEuropean Centre for Medium-Range Weather Forecastisopycnal surfacesisentropic surfacesvortex edgekinetic energyWe study the dynamics of passively advected tracers in the Antarctic polar vortex, using the wind fields provided by the European Centre ...
Extreme polar vortex events known as sudden stratospheric warmings can influence surface winter weather conditions, but their timing is difficult to predict. Here, we examine factors that influence their occurrence, with a focus on their timing and vertical extent. We consider the roles of the trop...
On Tuesday, the weather phenomenon known as the polar vortex brought some of the lowest temperatures in decades to cities across most of the United States. Harsh weather conditions have caused record lows, cancelled flights, and at least 15 deaths —…
There are a variety of different factors that contribute to cold weather, so not all cold snaps are related to the polar vortex. This winter, the vortex has actually been strong and stable for the most part, with rapid west-to-east winds keeping Arctic air confined ...
The cold air is expected to sweep down from the Arctic starting Sunday. The vortex, which is a large-scalecyclone-like pattern of wind that circles around the planet's north pole, will veer farther south during the second full week of January. ...
A polar vortex is on the move across Western Canada, and it will have a direct effect on B.C. and the South Coast’s weather in the next few days. Plunging temperatures Below freezing daytime highs are forecast Friday across all of B.C., whe...
The polar vortex is nothing new Few phrases in a weather forecast can send a chill down even the winter-hardiest spine quite like the polar vortex. The polar vortex isn’t a storm, nor is it dangerous on its own. The only ...