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In winter, this relatively warm water, even though covered by the polar ice pack, keeps the North Pole from being the coldest place in the Northern Hemisphere, and it is also part of the reason that Antarctica is so much colder than the Arctic. In summer, the presence of the nearby water keeps coastal areas from warming as much as they might ...
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 ...
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.
The climate in the extreme north of Alaska is what would be expected for an area north of the Arctic Circle. It is an Arctic climate (Köppen EF) with long, very cold winters and short, cool summers. The sun does not rise at all during some weeks in the winter, and is out for 24 hours during some weeks in the summer.
Cold Arctic air intrudes into the warmer lower latitudes more rapidly today during autumn and winter, a trend projected to continue in the future except during summer, thus calling into question whether winters will bring more cold extremes. [165]
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 ...
The year 2023 brought a brief period of record cold, flooding, a soggy summer and tornadoes to Southern New England. ... An arctic blast disrupts a mild winter. The winter of 2022-2023 was warmer ...
Continental climates exist where cold air masses infiltrate during the winter from shorter days and warm air masses form in summer under conditions of high sun and longer days. Places with continental climates are as a rule either far from any moderating effect of oceans or are so situated that prevailing winds tend to head offshore. [6]