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2. Arctic blast from polar vortex to send temperatures plunging ...

   www.aol.com/news/arctic-blast-send-temperatures...

   Bitterly cold air that originated in Siberia will arrive in the U.S. in the coming days, resulting in dangerously cold wind chills for millions of Americans. Arctic blast from polar vortex to send ...

3. Arctic blast about to invade US. What happened to warm ... - AOL

   www.aol.com/arctic-blast-invade-us-happened...

   Arctic cold is forecast to surge through much of the Lower 48 starting later this week into next week. Bitterly cold wind chills are possible over many areas. See our Key Messages below.

4. Polar climate - Wikipedia

   en.wikipedia.org/wiki/Polar_climate

   Some parts of the Arctic are covered by ice (sea ice, glacial ice, or snow) year-round, especially at the most poleward parts; and nearly all parts of the Arctic experience long periods with some form of ice or snow on the surface. Average January temperatures range from about −40 to 0 °C (−40 to 32 °F), and winter temperatures can drop ...

5. Polar vortex headed for US will bring ‘exceptionally cold ...

   www.aol.com/polar-vortex-headed-us-bring...

   That means arctic air is blasting over the US, while pressure changes and the motion of the polar vortex whip up high winds and create a perfect recipe for wintry weather. Cold subsides when the ...

6. Climate of the Arctic - Wikipedia

   en.wikipedia.org/wiki/Climate_of_the_Arctic

   A map of the Arctic. The red line is the 10 °C isotherm in July, commonly used to define the Arctic region; also shown is the Arctic Circle. The white area shows the average minimum extent of sea ice in summer as of 1975. [1] The climate of the Arctic is characterized by long, cold winters

7. Arctic front - Wikipedia

   en.wikipedia.org/wiki/Arctic_front

   The Arctic front is the semipermanent, semi-continuous weather front between the cold arctic air mass and the warmer air of the polar cell. It can also be defined as the southern boundary of the Arctic air mass. [1] Mesoscale cyclones known as polar lows can form along the arctic front in the wake of extratropical cyclones. Arctic air masses in ...

8. Arctic retreat: Dramatic warmup across US, temps could surge ...

   www.aol.com/weather/arctic-retreat-dramatic...

   Much of February brought a tremendous onslaught of cold air, with winter storms varying in size and intensity. However, a new weather pattern is now shaping up that will allow Arctic air to ...

9. Climate change in the Arctic - Wikipedia

   en.wikipedia.org/wiki/Climate_change_in_the_Arctic

   If the warming exceeds - or thereabouts, there is a significant risk of the entire ice sheet being lost over an estimated 10,000 years, adding up to global sea levels. Warming in the Arctic may affect the stability of the jet stream, and thus the extreme weather events in midlatitude regions, but there is only "low confidence" in that hypothesis.