Cold wave

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A cold wave (known in some regions as a cold snap, cold spell or Arctic Snap) is a weather phenomenon that is distinguished by a cooling of the air. Specifically, as used by the U.S. National Weather Service, a cold wave is a rapid fall in temperature within a 24-hour period requiring substantially increased protection to agriculture, industry, commerce, and social activities. The precise criteria for a cold wave are the rate at which the temperature falls, and the minimum to which it falls. This minimum temperature is dependent on the geographical region and time of year. [1]


In the United States, a cold spell is defined as the national average high temperature dropping below 20 °F (−7 °C). [2] A cold wave of sufficient magnitude and duration may be classified as a cold air outbreak (CAO). [3] [4]


A cold wave can cause death and injury to livestock and wildlife. Exposure to cold mandates greater caloric intake for all animals, including humans, and if a cold wave is accompanied by heavy and persistent snow, grazing animals may be unable to reach needed food and die of hypothermia or starvation. They often necessitate the purchase of foodstuffs to feed livestock at considerable cost to farmers.

Cold spells are associated with increased mortality rates in populations around the world. [5] Both cold waves and heat waves cause deaths, though different groups of people may be susceptible to different weather events. [6] More deaths occur during a cold wave than in a heat wave, [7] [8] though the mortality rate is higher in undeveloped regions of the world. Globally, more people die during hot weather than cold weather. Extreme winter cold often causes poorly insulated water pipelines and mains to freeze. Even some poorly protected indoor plumbing ruptures as water expands within them, causing much damage to property and costly insurance claims. Demand for electrical power and fuels rises dramatically during such times, even though the generation of electrical power may fail due to the freezing of water necessary for the generation of hydroelectricity. Some metals may become brittle at low temperatures. Motor vehicles may fail when antifreeze fails or motor oil gels, producing a failure of the transportation system.

Fires become even more of a hazard during extreme cold. Water mains may break and water supplies may become unreliable, making firefighting more difficult. The air during a cold wave is typically denser and thus contains more oxygen, so when air that a fire draws in becomes unusually cold it is likely to cause a more intense fire[ citation needed ]. However, snow may stop spreading of fires, especially wildfires.

Winter cold waves that are not considered cold in some areas, but cause temperatures significantly below average for an area, are also destructive. Areas with subtropical climates may recognize a cold wave at higher temperatures than other, colder areas of the globe. The cold wave may be recognized at barely freezing temperatures, as these are still unusually cold for the region, and plant and animal life will be less tolerant of such cold. The same winter temperatures that one associates with the norm for Colorado, Ohio, or Bavaria are catastrophic to crops in places like Florida, California, or parts of South America that grow fruit and vegetables in winter.

Cold waves that bring unexpected freezes and frosts during the growing season in mid-latitude zones can kill plants during the early and most vulnerable stages of growth, resulting in crop failure as plants are killed before they can be harvested economically. Such cold waves have caused famines. At times as deadly to plants as drought, cold waves can leave land in danger of later brush and forest fires that consume dead biomass. One extreme was the so-called Year Without a Summer of 1816, one of several years during the 1810s in which numerous crops failed during freakish summer cold snaps after volcanic eruptions that reduced incoming sunlight.

Recent research suggests a possible link between cold waves and extratropical cyclogenesis. [9]


In some places, such as Siberia, extreme cold requires that fuel-powered machinery intended to be used occasionally must be run continually. Internal plumbing can be wrapped, and persons can often run water continuously through pipes. Energy conservation, difficult as it is in a cold wave, may require such measures as collecting people (especially the poor and elderly) in communal shelters. Even the homeless may be arrested and taken to shelters, only to be released when the hazard abates. [10] Hospitals can prepare for the admission of victims of frostbite and hypothermia; schools and other public buildings can be converted into shelters.

People can stock up on food, water, and other necessities before a cold wave. Some may even choose to migrate to places of milder climates, at least during the winter. Suitable stocks of forage can be secured before cold waves for livestock, and livestock in vulnerable areas might be shipped from affected areas or even slaughtered. Smudge pots can bring smoke that prevents hard freezes on a farm or grove. Vulnerable crops may be sprayed with water that will paradoxically protect the plants by freezing and absorbing the cold from surrounding air.

Most people can dress appropriately and can layer their clothing should they need to go outside or should their heating fail. They can also stock candles, matches, flashlights, and portable fuel for cooking and wood for fireplaces or wood stoves, as necessary. However, caution should be taken as the use of charcoal fires for cooking or heating within an enclosed dwelling is extremely dangerous due to carbon monoxide poisoning. Adults must remain aware of the exposure that children and the elderly have to cold.

Historical cold waves

21st-century cold waves (2001–present)



Novosibirsk reached a low of -41 °C. Beijing recorded a low of -19.6 °C which was the coldest since 1966. Seoul also recorded -18.6 °C in January 8 which was the tie record with 2001 and the coldest since 1986. Over 200 cm of snow fell in western Japan along the Japan Sea coast.













The first snowfall began on 17 December 2009, before a respite over the Christmas period. [42] The most severe snowy weather began on 5 January in North West England and west Scotland with temperatures hitting a low of −17.6 °C (0.3 °F) in Greater Manchester, England. [43] The snow spread to Southern England on 6 January and by 7 January the United Kingdom was blanketed in snow, [42] which was captured by NASA's Terra satellite. [44] The thaw came a week later, as temperatures started to increase. [42] The winter weather brought widespread transport disruption, school closures, power failures, the postponement of sporting events and 25 deaths. A low of −22.3 °C (−8.1 °F) was recorded in Altnaharra, Scotland on 8 January 2010. Overall it was the coldest winter since 1978–79, with a mean temperature of 1.5 °C (34.7 °F).






20th-century cold waves (1901–2000)
















1977–1979 winters






















1904 was the coolest year on record. [79]

19th century cold waves (1801–1900)











18th century cold waves (1701–1800)

17th century cold waves (1601–1700)

See also

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<span class="mw-page-title-main">February 2015 North American cold wave</span>

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  1. "Cold Wave". AMS: Glossary of Meteorology. Archived from the original on 2011-05-14. Retrieved 2008-09-25.
  2. Borenstein, Seth (January 10, 2014). "Winters aren't colder; we're just softer". Florida Today. Melbourne, Florida. pp. 8A. Archived from the original on January 13, 2014. Retrieved January 12, 2014.
  3. Smith, Erik T.; S. C. Sheridan (2018). "The characteristics of extreme cold events and cold air outbreaks in the eastern United States". Int. J. Climatol. 38: e807–e820. Bibcode:2018IJCli..38E.807S. doi:10.1002/joc.5408. S2CID   133920737.
  4. Smith, Erik T.; Sheridan, Scott C. (2020). "Where do Cold Air Outbreaks occur and how have they changed over time?". Geophysical Research Letters. 47 (13): e86983. Bibcode:2020GeoRL..4786983S. doi:10.1029/2020GL086983. S2CID   219424375.
  5. Jaakkola, Jouni J.K.; Guo, Yuming; Ryti, Niilo R.I. (2015). "Global Association of Cold Spells and Adverse Health Effects: A Systematic Review and Meta-Analysis". Environmental Health Perspectives. 124 (1): 12–22. doi:10.1289/ehp.1408104. ISSN   0091-6765. PMC   4710591 . PMID   25978526.
  6. Joacim, Rocklöv; Bertil, Forsberg; Kristie, Ebi; Tom, Bellander (2014). "Susceptibility to mortality related to temperature and heat and cold wave duration in the population of Stockholm County, Sweden". Global Health Action. 7: 22737. doi:10.3402/gha.v7.22737. ISSN   1654-9880. PMC   3955771 . PMID   24647126.
  7. Gasparrini, Antonio; Guo, Yuming; Hashizume, Masahiro; Lavigne, Eric; Zanobetti, Antonella; Schwartz, Joel; Tobias, Aurelio; Tong, Shilu; Rocklöv, Joacim; Forsberg, Bertil; Leone, Michela (July 2015). "Mortality risk attributable to high and low ambient temperature: a multicountry observational study". The Lancet. 386 (9991): 369–375. doi: 10.1016/s0140-6736(14)62114-0 . ISSN   0140-6736. PMC   4521077 . PMID   26003380.
  8. Lomborg, Bjorn (2020). False Alarm: How Climate Change Panic Costs Us Trillions, Hurts the Poor, and Fails to Fix the Planet. Basic Books. ISBN   978-1-5416-4746-6. OL   29483383M.
  9. Messori, Gabriele; Caballero, Rodrigo; Gaetani, Marco (2016). "On cold spells in North America and storminess in western Europe". Geophysical Research Letters. 43 (12): 6620–6628. Bibcode:2016GeoRL..43.6620M. doi: 10.1002/2016GL069392 .
  10. "Police law of Finland 11§" (in Finnish). Retrieved 2008-09-25.
  11. 1 2 3 4 5 "Temperaturas extremas en el sur de Chile provocan que el mar se congele en el fiordo de Tortel". Emol (in Spanish). 2022-06-27. Retrieved 2022-07-04.
  12. Fox, Lauren; Puleo, Mark (October 27, 2020). "Bitter cold obliterates records in western US as storm dumps snow, ice".
  13. 1 2 [ dead link ]
  14. "Погода в Новосибирске - климатический монитор за февраль 2019 года".
  15. "Погода в Красноярске - климатический монитор за февраль 2019 года".
  16. "Погода в Иркутске - климатический монитор за февраль 2019 года".
  17. "Погода в Омске - климатический монитор за февраль 2019 года".
  18. "Погода в Новокузнецке - климатический монитор за февраль 2019 года".
  19. "Погода в Ванаваре - климатический монитор за февраль 2019 года".
  20. "February is coldest in Los Angeles in nearly 60 years". Los Angeles Times . 2019-02-25.
  21. "So far 2019 has set 35 records for heat and 2 for cold".
  22. "NYC Faces Wind Chills Well Below Zero After its First Snow Squall Warning". Retrieved 2022-06-29.
  23. "Погода в Новосибирске - климатический монитор за декабрь 2018 года".
  24. "Погода в Омске - климатический монитор за декабрь 2018 года".
  25. "Погода в Красноярске - климатический монитор за декабрь 2018 года".
  26. "Погода в Братске - климатический монитор за декабрь 2018 года".
  27. "Погода в Барнауле - климатический монитор за декабрь 2018 года".
  28. "Погода в Томске - климатический монитор за декабрь 2018 года".
  29. "Погода в Ербогачене - климатический монитор за декабрь 2018 года".
  30. "Storm Emma to bring up to 50cm of snow". BBC News. 2 March 2018. Retrieved 2 March 2018.
  31. Sampathkumar, Mythili (2017-12-30). "North America weather: Canadian zoo moves penguins indoors because of cold temperatures". The Independent . Archived from the original on 2017-12-30. Retrieved 2017-12-31.
  32. "Потепление приближается" [The warming is coming] (in Russian). Retrieved 11 January 2017.
  33. "Snow in April in Bosnia and Herzegovina!". 19 April 2017.
  34. "Winter 2016 Recap - Mild, With Cameo Appearances by Old Man Winter". New York City Weather Archive. Retrieved 2022-07-07.
  35. "Dallas, TX Weather Forecast from Weather Underground". Retrieved 2013-12-06.
  36. "Dallas, Texas (75201) Conditions & Forecast". Archived from the original on 2013-12-11. Retrieved 2013-12-06.
  37. Pidd, Helen; Elder, Miriam (3 February 2012). "European cold snap threatens energy crisis as death toll rises". The Guardian. Retrieved 20 January 2018.
  38. Kyiv Post: Ukraine Cold Spell Death Toll Rises 101 Archived February 4, 2012, at the Wayback Machine
  39. Wade, NZPA, Amelia (2011-08-15). "Snow falls in Auckland for first time in decades". The New Zealand Herald. ISSN   1170-0777 . Retrieved 2019-01-30.
  40. "Kiwis marvel at Auckland and Wellington snow - Storyful". 2014-02-01. Archived from the original on 2014-02-01. Retrieved 2019-01-30.
  41. "January 2010". The Met Office. Archived from the original on 17 January 2012. Retrieved 20 February 2010.
  42. 1 2 3 "Snow and low temperatures – December 2009 to January 2010". Retrieved 9 September 2011.
  43. "Minus 17.6C – Big freeze sets new record". Manchester Evening News. 7 January 2010. Retrieved 9 September 2011.
  44. "Frozen Britain seen from above". BBC News. 7 January 2010. Retrieved 5 December 2011.
  45. "UK | Heavy snow hits much of Britain". BBC News. 2 February 2009. Retrieved 6 February 2009.
  46. "Blanket of snow over much of Europe". RTÉ. 2 February 2009. Retrieved 6 February 2009.
  47. Gillan, Audrey (2 February 2009). "Heavy snow to cause travel chaos all week | UK news |". London: Guardian. Retrieved 6 February 2009.
  48. "Snow causes London to slow to crawl". NBC News. 2 February 2009. Retrieved 6 February 2009.
  49. Richard Allen Greene and Olivia Feld CNN (7 February 2009). "Heaviest UK snow in 18 years hits international flights". Retrieved 6 February 2009.
  50. "2008/02". antisimvatikos.blogspot. 18 February 2008. Retrieved 20 June 2021.
  51. Cormier, Bill, Buenos Aires Gets First Snow Since 1918, Associated Press (July 7, 2007).
  52. Cold snap in Argentina leads to energy crunch that idles factories, triggers blackouts, AP via International Herald Tribune , May 31, 2007 Archived May 31, 2008, at the Wayback Machine
  53. "2004/02". antisimvatikos.blogspot. 14 February 2004. Retrieved 20 June 2021.
  54. "2002 cold wave". antisimvatikos.blogspot. June 2002. Retrieved 15 June 2021.
  55. "1987/03". antisimvatikos.blogspot. 15 March 1987. Retrieved 20 June 2021.
  56. "December Weather Trivia". Retrieved 2014-01-08.
  57. "Record cold December". 2011-07-15. Retrieved 2014-01-08.
  58. "Minneapolis December weather records". Archived from the original on 2012-11-18. Retrieved 2014-01-08.
  59. 1 2 "America's Coldest Outbreaks" . Retrieved 20 January 2018.
  60. "Трагедию предотвратили пожарные: Политика: Облгазета".
  61. Extreme Weather record book, 2007 edition, pg 66, Christopher Burt
  62. 1 2 J.-M. Hirschi, Joël and Sinha, Bablu. "Negative NAO and cold Eurasian winters: How exceptional was the winter of 1962/1963?" Weather Vol. 62, No. 2 (February 2007); pp. 43–48
  63. Rogers, Jeffrey A. and Mosley-Thompson, Ellen. "Atlantic Arctic Cyclones and the Mild Siberian Winters of the 1980s". Geophysical Research Letters , vol. 22 (1995), issue 7; pp. 799–802
  64. "Daily Data Report for January 1950". Environment and Climate Change Canada. 2011-10-31. Retrieved 2018-08-08.
  65. "Canadian Climate Normals 1981–2010 Station Data". Environment and Climate Change Canada. 2011-10-31. Retrieved 2018-08-08.
  66. Extreme Weather record book, 2007 edition, pg 65, Christopher Burt
  67. Brönnimann, Stefan. "The global climate anomaly, 1940–1942". Weather Vol. 60, No. 12 (December 2005); pp. 336–342
  68. 1 2 "Record Lowest Temperatures by State". InfoPlease. Retrieved 20 January 2018.
  69. Extreme Weather record book, 2007 edition, p. 64, Christopher Burt
  70. The American Weather Book – David Ludlum
  71. Diaz, Henry F. and Quayle, Robert G. "The 1976–77 Winter in the Contiguous United States in Comparison with Past Records". Monthly Weather Review , 106 (1977), no. 10, pp. 1392–1422
  72. "Climate at a Glance". National Centers for Environmental Information. Retrieved 20 January 2018.
  73. "This day in history, January 15" (PDF).
  74. "This day in history, January 11" (PDF).
  75. Wagner, A. James. "The Record-Breaking Winter of 1976–77". Weatherwise 30 (1977), no. 2, pp. 65–69
  76. "Korea weather data(1904~)(was served Korea Meteorological Administration)".
  77. "The lowest temperature statistic before 1945(was served Statistics Korea)".
  78. "The month-average temperature statistic before 1945(was served Statistics Korea)".
  79. "Earth's coldest years on record all happened over 90 years ago". Mashable . 9 February 2019.
  80. Extreme Weather record book, 2007 edition, p. 61, Christopher Burt
  81. Extreme Weather record book, 2007 edition, pp. 61-62, Christopher Burt
  82. Extreme Weather record book, 2007 edition, p. 60, Christopher Burt