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  2. Here's what you need to know about the polar vortex

    www.aol.com/lifestyle/heres-know-polar-vortex...

    Polar vortex. It's a phrase that becomes very popular has achieved buzzword status and is often used frequently during the winter as the Northern Hemisphere endures its coldest months of the year ...

  3. What you need to know about the polar vortex

    www.aol.com/heres-know-polar-vortex-165732890.html

    Polar vortex. It's a phrase that becomes very popular has achieved buzzword status and is often used frequently during the winter as the Northern Hemisphere endures its coldest months of the year ...

  4. Polar vortex - Wikipedia

    en.wikipedia.org/wiki/Polar_vortex

    When the polar vortex is strong, the mid-latitude Westerlies (winds at the surface level between 30° and 60° latitude from the west) increase in strength and are persistent. When the polar vortex is weak, high-pressure zones of the mid-latitudes may push poleward, moving the polar vortex, jet stream, and polar front equatorward. The jet ...

  5. January–March 2014 North American cold wave - Wikipedia

    en.wikipedia.org/wiki/January–March_2014_North...

    Beginning on January 2, 2014, sudden stratospheric warming (SSW) [dubious – discuss] led to the breakdown of the semi-permanent feature across the Arctic known as the polar vortex. Without an active upper-level vortex to keep frigid air bottled up across the Arctic, the cold air mass was forced southward as upper-level warming displaced the ...

  6. Winter forecast for the US in the 2024-25 season - AOL

    www.aol.com/weather/winter-forecast-us-2024-25...

    Based on data from previous winters with a similar setup to the upcoming season, Pastelok said that February is the most probable time frame for the polar vortex to usher a blast of bitterly cold ...

  7. January–February 2019 North American cold wave - Wikipedia

    en.wikipedia.org/wiki/January–February_2019...

    Normally, the Northern Hemisphere jet stream travels fast enough to keep the concentration of Arctic air known as the "polar vortex" stationary in the stratosphere over the North Pole. From late December to early January, a sudden stratospheric warming event was observed over the Arctic, which caused the "polar vortex" to weaken and split into ...

  8. Think Dallas-Fort Worth has had enough Arctic blasts? Wait ...

    www.aol.com/think-dallas-fort-worth-had...

    The polar vortex is extensive coverage of low pressure and cold air surrounding Earth’s poles. When the vortex is strong and stable, the polar jet stream shifts northward, keeping the cold air ...

  9. Ellesmere Island - Wikipedia

    en.wikipedia.org/wiki/Ellesmere_Island

    The most northern mountain range in the world, the Challenger Mountains, is located in the northeast region of the island. The northern lobe of the island is called Grant Land. Air Force glacier in Quttinirpaaq National Park Gull Glacier in Tanquary Fiord Hiking on Ellesmere Island. The Arctic willow is the only woody species to grow on ...