All articles tagged with #polar vortex
Trump claims the winter storm proves global warming is a hoax, but scientists say the event arises from Arctic air meeting warmer, moister air and may be connected to Arctic warming and polar-vortex disruptions; a single storm isn’t evidence against long-term warming, as US winters have warmed overall and snow patterns are shifting, even as the storm threatens millions with icy roads and outages.
A massive Arctic air blast, driven by a Polar Vortex, is forecast to bring heavy snow and freezing rain to about 30 states and around 160 million people, starting in Texas and New Mexico and sweeping east to major cities like Memphis, Nashville, Washington, D.C., Philadelphia and New York. Some interior plains could see sub-40°F wind chills and temperatures plunge far below freezing; snowfall could exceed 12 inches in some areas. The storm threatens travel disruptions, power outages, and tree damage, and several states have declared emergencies as cold air persists into next week.
With wind chills forecast to dip to -45F, Minnesota faces the possibility of statewide school closures—rare in modern times, though not unprecedented during the 2019 polar vortex. Typically, wind chills around -35F prompt closures; last year saw many districts cancel in-person classes or switch to online learning when wind chills ranged from -35F to -45F. Minnesota’s cold history includes multi-year extreme winters in the 1990s and the record-breaking -60F in Tower in 1996, underscoring why these decisions hinge on district policies and emergency powers.
A stretched polar vortex is funneling Arctic air into the United States, setting the stage for a significant winter blast with very cold temperatures and potential snow across parts of the Midwest and Northeast as the pattern unfolds.
An Arctic outbreak driven by a wobbling polar vortex and a fading La Niña setup could spark a weekend winter storm from Texas to the Carolinas, with heavy snow, sleet, and significant icing possible; New England may see only a northern fringe with bitter cold and subzero wind chills through the weekend.
A triple-dip polar vortex is expected to bring frigid Arctic air to much of the central and eastern US over the coming weeks, causing significant cold surges, snow, and increased energy demands, with temperatures potentially dropping below -25°F in some areas.
Scientists have discovered a surge in ozone levels within Mars's north polar vortex, which is much colder than surrounding areas and may provide insights into the planet's past atmospheric conditions and potential habitability. This finding is significant for upcoming missions like ExoMars, aiming to explore signs of ancient life, and highlights the unique atmospheric phenomena on Mars that could reshape our understanding of the planet.
Recent unprecedented temperature surges in Antarctica, linked to collapsing stratospheric currents and a slowing polar vortex, are accelerating ice melt, disrupting ecosystems, and impacting global climate patterns, highlighting urgent need for international action on climate change.
Thanksgiving week will see significant weather changes in the U.S. due to remnants of a bomb cyclone and a polar vortex. The bomb cyclone will bring a cold front to Colorado with light snow, while a second Pacific cyclone could cause a snowstorm in Denver on Wednesday. A polar vortex will bring extreme cold to the eastern states starting Friday, affecting post-Thanksgiving travel, with heavy snow expected from the Great Lakes to New England.
The polar vortex above the Arctic is spinning in the opposite direction following a surprise warming event in Earth's atmosphere, causing a record-breaking "ozone spike" above the North Pole. While such reversals have previously led to extreme cold weather in the U.S., this event is not expected to cause a similar "big freeze." The disruption did not alter the jet stream's shape, so weather patterns are likely to remain largely unaffected. However, the change in air temperature has led to a temporary increase in ozone levels around the Arctic, which is expected to dissipate once the polar vortex returns to normal.
The Arctic's polar vortex has been spinning backwards since March 4, a rare event caused by sudden stratospheric warming and an increase in polar ozone. This reversal, one of the six strongest since 1979, has not led to extreme cold or storms. The polar vortex, a region of circulating winds that confines cold air to the polar regions, can cause major weather events when disrupted. The reversal was caused by sudden atmospheric warming from planetary waves. The winds are expected to slow down by the end of March, leading to a resumption of westerly winds.
The polar vortex above the Arctic is spinning in the opposite direction following a surprise warming event, causing a record-breaking "ozone spike" and disrupting the jet stream. While this reversal is not expected to lead to extreme cold weather in the U.S., it has drawn in large amounts of ozone from lower latitudes, creating a temporary ozone spike. The event, caused by sudden stratospheric warming, is the second of its kind this year and is linked to the current major El Niño phase, potentially making further disruptions more likely over the next year.
The Space Climate Research Group at the University of Oulu, Finland, has found that energetic particle precipitation from space, known as the aurora borealis, affects winter weather variations and influences Finland's electricity consumption. The study, published in Scientific Reports, reveals that particle precipitation significantly influences winter temperatures and electricity consumption through the polar vortex, with strong particle precipitation corresponding to higher winter temperatures and lower electricity consumption. This connection is valid in winters when the equatorial stratospheric winds blow from the east, and understanding this influence may help predict winter temperatures and electricity consumption several months or even years in advance.
Michigan is set to experience record warmth over the next few days, with both high and low temperature records expected to be broken. Some cities may see temperatures up to 18 degrees warmer than normal, and the warm spell is expected to be widespread across the state. This unusual warm-up is a rare occurrence and is predicted to break records set over the past 125 years.
Michigan is experiencing an exceptionally rare warm-up, with temperatures averaging over 40 degrees for the next five days, at least 17 degrees warmer than normal. Cities like Grand Rapids, Ann Arbor, Flint, and Traverse City are all set to break or tie temperature records for this time period. This warm spell is not just a typical winter thaw, but a significant event that is likely to be remembered in the record books.