Английская Википедия:February 13–17, 2021 North American winter storm

Материал из Онлайн справочника
Перейти к навигацииПерейти к поиску

Шаблон:Short description Шаблон:Distinguish Шаблон:For Шаблон:Use mdy dates Шаблон:Infobox weather eventШаблон:Infobox weather event/Winter stormШаблон:Infobox weather event/Tornado outbreakШаблон:Infobox weather event/EffectsШаблон:Infobox weather event/Footer

The February 13–17, 2021 North American winter storm was a crippling, large and major winter and ice storm that had widespread impacts across the United States, Northern Mexico, and parts of Canada from February 13 to 17, 2021. The storm, unofficially referred to as Winter Storm Uri by the Weather Channel,[1][2] started out in the Pacific Northwest and quickly moved into the Southern United States, before moving on to the Midwestern and Northeastern United States a couple of days later.

The storm resulted in the National Weather Service issuing various winter weather alerts impacting over 170 million Americans. Over 9.9 million people in the U.S. and Mexico experienced blackouts, many due to a major power crisis in Texas,[3][4][5] which became the largest in the U.S. since the Northeast blackout of 2003.[6] The storm contributed to a severe cold wave that affected most of North America. The storm also brought severe destructive weather to Southeastern United States, including several tornadoes. On February 16, there were at least 20 direct fatalities and 13 indirect fatalities attributed to the storm;[7][8][9][10][1] by January 2, 2022, the death toll had risen to at least 290, including 276 people in the United States and 14 people in Mexico.[11][12][13][9][14][15]

The National Oceanic and Atmospheric Administration officially documented US$26.5 billion in damage in the United States from the winter storm.[16] Aon PLC, a finance company, estimated the system to have cost over $196.5 billion in damages, including at least $195 billion in the United States and over $1.5 billion in Mexico. This would make it the costliest winter storm on record and the costliest natural disaster recorded in the United States at the time.[17][18] It was also the deadliest winter storm in North America since the 1993 Storm of the Century, which killed 318 people.[19]

Meteorological history

On February 13, a frontal storm developed off the coast of the Pacific Northwest and moved ashore, before moving southeastward, with the storm becoming disorganized in the process.[20][21] During this time, the storm reached a minimum pressure of Шаблон:Convert over the Rocky Mountains.[21] On the same day, The Weather Channel gave the storm the unofficial name Winter Storm Uri;[1] the Federal Communications Commission adopted the name in their reports from February 17.[2] From February 12 to 13, a trough dipped southward from Northern California into northern Mexico, which channeled moisture from Texas towards the storm, as the system moved southeastward.[22] Over the next couple of days, the storm began to develop as it entered the Southern United States and moved into Texas.[23] From February 13 to 14, a second, much larger trough developed over Central United States, aided by a southward shift from the polar vortex, while the winter storm moved into Texas. The trough became fully developed by February 15, channeling significant amounts of moisture into the winter storm and also contributing to a historic cold wave that affected most of the Central and Eastern United States.[22] Winds in the jet stream reached 170 mph (275 km/h) around the trough.[22] On February 15, the system developed a new surface low off the coast of the Florida Panhandle, as the storm turned northeastward and expanded in size.[24]

On February 16, the storm developed another low-pressure center to the north as the system grew more organized, while moving towards the northeast.[25][22] Later that day, the storm broke in half, with the newer storm moving northward into Quebec, while the original system moved off the East Coast of the U.S.[26] By the time the winter storm exited the U.S. late on February 16, the combined snowfall from the multiple winter storms within the past month had left nearly 75% of the contiguous United States covered by snow, which was the largest amount of snow cover seen in the United States since early 2003.[18][27][22] On February 17, the storm's secondary low dissipated as the system approached landfall on Newfoundland, intensifying in the process.[28] At 12:00 UTC that day, the storm's central pressure reached Шаблон:Convert, as the center of the storm moved over Newfoundland.[29] On the same day, the storm was given the name Belrem by the Free University of Berlin.[30] The storm continued to strengthen as it moved across the North Atlantic, with the storm's central pressure dropping to Шаблон:Convert by February 19.[31][32] On February 20, the storm developed a second-low pressure area and gradually began to weaken, as it moved northwestward towards Iceland.[33][34] Afterward, the storm turned westward and moved across southern Greenland on February 22, weakening even further as it did so.[35] The storm then stalled south of Greenland, while continuing to weaken, before dissipating on February 24.[36][37]

Preparations and impact

All warnings and advisories issued in the Central and Eastern United States due to the storm
Файл:Winter Storm Uri weather alerts map.png
 Winter Storm Warning
 Winter Storm Watch
 Winter Weather Advisory

United States

On February 14, the expected impacts from the storm resulted in over 170 million Americans being placed under various winter weather alerts across the United States, which saw the largest portion of the country covered by winter weather alerts in 15 years.[5][22] Over 120 million of those people were placed under winter storm warnings or ice storm warnings by the National Weather Service.[38] The winter storm caused power grids to fail across the U.S., causing blackouts for over 5.2 million homes and businesses, the vast majority of which were in the state of Texas, which became one of the largest blackout events in modern U.S. history,[3][4][39] the largest one since the Northeast blackout of 2003.[6] The storm was initially reported to have caused 70 deaths across the United States,[40][41][14] later updated to at least 276 people dead, 246 of them in Texas.[12][11] A BuzzFeed study in May 2021 estimated that the winter storm may have killed a total of 702 people in Texas, which would add hundreds of deaths to the official death toll if verified.[42] The system was estimated by NOAA to have cost $21 billion in damage in the United States, making it the costliest winter storm in U.S. history at the time.[43] City of Austin and Travis County officials estimated that the winter storm caused at least $195 billion in damage in Texas, making the winter storm the single-costliest natural disaster in the history of Texas and the United States as a whole.[17] Some insurance firms had estimated a damage total of between 195 and 295 billion dollars.[44][45]

Northwest

Файл:Snow 2021 PDX.webm
Snow in Portland, Oregon, on February 14, 2021

The winter storm was the second of the two snowstorms that swept through the region within a one-week period. Шаблон:Convert of snow in Seattle, Washington, compounded the previous storm.[46] This was the largest two-day snowfall recorded in Seattle since 1972.[47]

The Portland metro area was hit very hard by the storm, which brought a mix of snow and ice to the region.[46] Шаблон:Convert of snow fell at Portland International Airport on February 12–13, the most snow to fall over this city in a two-day period since 1968.[47] Over 270,000 people were left without power in the region,[48] with Шаблон:Convert of power lines needing to be restored.[49] The storm led to the largest power outage in state history.[50] Around Шаблон:Convert of Interstate 84 was shut down due to the storm.[51] Governor Kate Brown declared a state of emergency.[52][3] Four people were killed in Oregon by carbon monoxide poisoning.[13] Damage in Oregon totaled $26,874,426.[53]

Шаблон:Convert of snow fell in Boise, Idaho, during this same time period, making this the largest recorded two-day snowfall event for that city since 1996.[47] In Salt Lake City, the Шаблон:Convert made this storm their snowiest February day on record.[54]

Southwest

The storm brought heavy snow and bitterly cold temperatures to Colorado and New Mexico. Snow amounts in Colorado ranged from a few inches in the north to over Шаблон:Convert in the San Juan Mountains in northern New Mexico and southern Colorado.[55] In New Mexico, the storm system brought a combination of heavy snow, strong winds, and bitterly cold temperatures. On February 14, a Blizzard Warning was issued for the Albuquerque metro area due to strong winds exceeding Шаблон:Convert, cold temperatures, and blowing snow.[56] Meanwhile, Winter Storm Warnings were issued for much of the rest of New Mexico. Up to Шаблон:Convert of snow fell in the mountains of northern and central New Mexico. Snow amounts in the Albuquerque metro area ranged from Шаблон:Convert. Interstate Highway 40 through the Albuquerque metro area was closed for several hours due to numerous motor vehicle crashes caused by the icy conditions.[57] Southern New Mexico received up to Шаблон:Convert of snow accumulation, with locally higher amounts in the mountains.[58]

Central and Southern Plains

Шаблон:See also

Файл:HOUSTON TEXAS WINTER SNOW STORM OF 2021 DJI MAVIC MINI 2.webm
Drone footage of Houston

With the threat of icing, the Texas Department of Transportation (TxDOT) pre-treated roadways, using a brine-salt mix, across six Southeast Texas counties.[59] For the first time on record, the National Weather Service (through its 13 regional offices serving Texas and adjoining portions of Oklahoma, New Mexico, Arkansas and Louisiana) issued Winter Storm Warnings for all 254 counties in the state.[1] In addition, Houston saw their first ever wind chill warning, as wind chills dipped to Шаблон:Convert.[60] Wind chills predicted to be at or below Шаблон:Convert promoted the first ever wind chill warning for Dallas as well.[61]

Файл:Snow in DFW.jpg
Snow at a Kroger grocery store in North Dallas.

On February 14–15, the storm dropped prolific amounts of snow across Texas and Oklahoma. As a result of the winter storm and a concurrent cold wave, power grids—unable to sustain the higher-than-normal energy and heating demand from residential and business customers—failed across the Texas Interconnection; at the peak of the outages, at least 4.5 million Texas residents were left without electricity.[4][3] Two of the electricity reliability commissions servicing the Southern U.S., the Southwest Power Pool (SPP) and the Electric Reliability Council of Texas (ERCOT), ordered rolling blackouts for 14 states amid the frigid temperatures, in an attempt to manage the strain on the power grid and prevent widespread, long-duration blackouts. The controlled outages were initiated after the Southwest Power Pool declared Level 3 Emergency Energy Alerts on both February 15 and 16; the SPP and ERCOT faced criticism by government officials and residents in the region for the limited advanced notice of the outages, and for not outlining the specific areas serviced by SPP partner utilities that would be affected.[62][63][64]

At one point during the rolling outages, over 4.2 million people across the south-central states were left without power, with over 3.5 million of them in Texas alone.[65] The rolling blackouts led to calls by Governor Greg Abbott for the Texas Legislature to conduct investigations into preparations and decisions undertaken by ERCOT in advance of the storm.[66] Some of the blackouts were initiated as several cities throughout the Central and Southern Plains experienced record overnight low temperatures: on February 16 alone, daily record lows were broken in Oklahoma City (Шаблон:Convert, the city's coldest temperature since 1899 and its second-coldest on record), Dallas (Шаблон:Convert, the city's coldest temperature since 1930 and its second-coldest on record), Houston (Шаблон:Convert, the city's coldest temperature since 1989), San Antonio (Шаблон:Convert, the city's coldest temperature since 1989) and Little Rock (Шаблон:Convert, the city's coldest temperature since 1989), with all-time low temperatures being set in Fayetteville, Arkansas (Шаблон:Convert) and Hastings, Nebraska (Шаблон:Convert).[67]

Шаблон:Multiple image Rolling blackouts, longer-duration power outages and ice accretion caused by the precipitation and unusually cold temperatures (for the region's climate) caused widespread disruptions to water distribution systems across the Southern Plains. There were water line breaks in many areas, and power disruptions affected water treatment plants in parts of the region that forced several cities—including Houston, San Antonio, Fort Worth, Abilene, Austin, Killeen and Arlington, Texas; and Shreveport, Louisiana—to enact residential boil-water orders (i.e., to boil drinking water to kill pathogens);[68][69][70][71][72] By February 18, more than 13 million people in Texas lived in areas where boiling water was advised,[73] or using bottled water if heating was not possible.[74] This led to shortages of bottled water in Houston grocery stores.[75] Pipe bursts caused significant damage to numerous residences in the Dallas area and other areas of North Texas.[76]

Файл:20210215000000 texassnow.gif
A visible satellite loop of a snow-covered South Central U.S. in the aftermath of the winter storm on February 16

After consulting Dallas Mayor Eric Johnson, two National Hockey League games between the Nashville Predators and the Dallas Stars that were scheduled for the evenings of February 15 and 16 at American Airlines Center were postponed.[77][78] In contrast, the Oklahoma City Thunder opted to hold their February 16 home game against the Portland Trail Blazers as scheduled, even as most other buildings in Downtown Oklahoma City decided to turn off lighting and electrical equipment overnight to reduce strain on the city's power grid; the NBA team stated that Chesapeake Energy Arena would take steps to conserve power while the game was being played, including turning off concourse lighting, video panels, exterior signage and most outdoor lighting.[79][80] The Memphis Grizzlies also played against the Oklahoma City Thunder without fans due to the storm.[81]

Due to the deregulated electricity market and the spike in demand, wholesale electricity prices increased, in some places by 10,000 percent, from February 10,[82] leading to extremely high bills[83] of up to $450 for one day's use.[84] Power outages even affected the Big Bend National Park.[85] On February 17, U.S. Senator Ted Cruz stirred controversy when he was filmed boarding an airplane to Cancún, Mexico with his family. He returned to Houston the following day, and admitted he had scheduled the vacation to avoid freezing conditions inside their home.[86]

Файл:2021Feb15 Snow b-roll highframerate 1080p.webm
Snow in Norman, Oklahoma on February 15, 2021

In Oklahoma, winter storm warnings were issued for all 77 counties in the state ahead of the storm by National Weather Service offices in Norman, Tulsa, Amarillo and Shreveport. Governor Kevin Stitt also issued a statewide winter weather State of Emergency on February 12, as the state was already dealing with effects from minor winter weather events and prolonged sub-freezing temperatures from previous days.[87] Widespread areas of Шаблон:Convert snowfall were recorded throughout the state, with locally higher amounts. Roosevelt saw Шаблон:Convert of snow, the highest total measured in the state during the event.[88]

The heavy, blowing snow caused massive travel issues across the state on February 14. By 5:20 p.m. CST that day, the Oklahoma Highway Patrol had responded to 56 non-injury collisions, 24 injury collisions, and 116 motorist assists.[89] A fiery crash involving multiple vehicles, including two semi-trucks, shut down the Turner Turnpike near Hiwassee Road in northeastern Oklahoma County, with westbound traffic being diverted to the Kickapoo Turnpike and eastbound traffic being diverted to I-35.[90] Another vehicle collision on I-35 near Braman caused one fatality.[9] The record cold temperatures during the event also caused a dam at Lake Overholser to completely freeze over.[91]

By February 16, the storm had killed at least 17 people across the South.[92][7] By February 18, the death toll rose to at least 47.[93][94][95] At least 10 people in Texas died in weather-related incidents since February 14, including a mother and a child due to carbon monoxide poisoning.[13] By January 2, 2022, the Texas State Government revised the official death toll in Texas to 246.[11] Nine other people in the South, outside Texas, died as a result of the system or through indirect storm-related incidents.[13][9] According to a BuzzFeed study in May 2021, based on the excess mortalities in Texas in February 2021, the actual death toll of the winter storm may range from 426 to 978 in Texas, with a mean estimate of 702, which would add hundreds of deaths to the official death toll, if verified.[42] The official death toll was modified in December 2021 with the Texas Department of State Health Services announcing a death toll of 246.[96]

The storm was also partially responsible for a nationwide chicken shortage, due to the freezing temperatures, widespread power and water outages that lasted days.[97][98][99][100][101]

Great Lakes

Файл:Ohio Snow Emergencies February 15–16, 2021.png
Map of snow emergencies in Ohio from February 15–16, 2021, at their most severe levels
Файл:Chicago Beautiful Snow.webm
Snow in Chicago, Illinois on February 15, 2021

Chicago along with other cities in northern Illinois received up to Шаблон:Convert of snow along with winds up to Шаблон:Convert. Due to the snowstorm, several Chicago Transit Authority trains suspended operations on February 16.[102] Chicago experienced its snowiest 3-week period since 1979.[103] Indianapolis, Indiana, received about Шаблон:Convert of snow as well as Detroit, Michigan, also had Шаблон:Convert of snow. Toledo, Ohio, received Шаблон:Convert of snow, the third-highest two-day snowfall record, and the highest since 1912. Other Northern Ohio cities received up to Шаблон:Convert of snow while cities in the central part received up to Шаблон:Convert of snow like in Columbus, Ohio.[104] After the storm, Milwaukee set a record for deepest snow depth ever.[105]

Tornado outbreak

Шаблон:See also Шаблон:Tornado chart small

Файл:EF3 damage in the Ocean Ridge Plantation community 2021.jpg
EF3 damage to a home in Sunset Beach, NC where 2 fatalities occurred.

A severe weather outbreak struck the Southeastern United States on February 15, with large hail, damaging winds, and six tornadoes affecting five states.[106] An EF2 tornado destroyed two homes and damaged trees near Damascus, Georgia, injuring five people. A more destructive high-end EF3 tornado struck the Ocean Ridge Plantation neighborhood near Sunset Beach, North Carolina, causing major damage to many homes, some of which were leveled or swept away, before moving into rural areas and damaging or snapping hundreds of trees. This tornado killed three and injured 10.[107][108]

Confirmed tornadoes

List of confirmed tornadoes – Monday, February 15, 2021Шаблон:Efn
EF# Location County / Parish State Start Coord. Time (UTC) Path length Max width Summary
bgcolor="Шаблон:Storm colour" | EF0 NW of Panama City Beach Bay FL Шаблон:Coord 20:02–20:04 Шаблон:Convert Шаблон:Convert A high-end EF0 tornado caused minor damage to structures, poles, benches, and fencing occurred near the beach and at Frank Brown Park in Gulf Resort Beach.[109]
bgcolor="Шаблон:Storm colour" | EF0 W of Compass Lake Washington FL Шаблон:Coord 20:39–20:41 Шаблон:Convert Шаблон:Convert A brief high-end EF0 tornado pulled out an outbuilding anchored by wooden poles in shallow concrete, lofting it Шаблон:Convert. Several pine trees were snapped along a driveway. Further north, a double wide manufactured home had minor roof damage. Several other trees were uprooted along the path.[110]
bgcolor="Шаблон:Storm colour" | EF0 WNW of Lake City Columbia FL Шаблон:Coord 21:17–21:21 Шаблон:Convert Шаблон:Convert There was sporadic damage to trees, fences roofs and other damage to residential buildings. A fence panel was blown about Шаблон:Convert.[111]
bgcolor="Шаблон:Storm colour" | EF0 ENE of Desser Seminole GA Шаблон:Coord 21:29–21:30 Шаблон:Convert Шаблон:Convert Trees were blown down in a rural area. No structural damage was found, but a brief tornado debris signature appeared on radar.[112]
bgcolor="Шаблон:Storm colour" | EF2 S of Damascus to E of Iveys Mill Early, Baker GA Шаблон:Coord 21:38–21:48 Шаблон:Convert Шаблон:Convert This strong tornado first touched down just west of SR 45, where it snapped several trees and damaged the roofs of some homes. Further northeast, the tornado reached its peak intensity as it completely destroyed two small and unanchored homes just south of Damascus, one made of concrete blocks, and the other made of wood with a concrete block foundation. Only scattered debris and the foundations remained of these structures, and a nearby detached garage was also completely destroyed. A truck was tossed from the garage, and cars were heavily damaged. Five injuries occurred at these homes. A third home sustained damage to its exterior and was shifted off its foundation. Trees were also snapped or uprooted, with two cases of metal poles being lodged into trees. A propane tank was dislodged and moved, and power lines went down. Farther northeast, the tornado weakened as it snapped and uprooted more trees. Some minor roofing damage occurred before the tornado lifted.[113][114]
bgcolor="Шаблон:Storm colour" | EF3 N of Sunset Beach to SW of Delco Brunswick NC Шаблон:Coord 04:34–05:02 Шаблон:Convert Шаблон:Convert 3 deaths – This destructive tornado touched down at the north edge of Sunset Beach, just north of the border with South Carolina, damaging numerous pine trees and limbs at EF0 intensity as it crossed NC 179, before rapidly intensifying to EF2 strength as it neared NC 904.[115] A tornado warning was not issued until after the tornado touched down and began causing damage.[116] As the tornado crossed the road, a large metal building was destroyed and a number of RVs were overturned. Still rapidly strengthening, the tornado entered Grissettown and struck the Ocean Ridge Plantation subdivision at its peak intensity of high-end EF3. A community garden center and two homes were leveled at this location, one of which was swept completely away. This home was well-constructed, but built on a block foundation, and vehicles parked at the site were moved only short distances. Dozens of other nearby homes were damaged, some of which sustained loss of roofs and exterior walls. Many large trees were snapped and denuded in the subdivision, and a car was overturned. All three fatalities occurred in the Ocean Ridge Plantation subdivision. The tornado then abruptly weakened, but reached its maximum width as it crossed US 17 between Grissettown and Cool Run as it exited Ocean Ridge Plantation at EF1 strength, rolling a double-wide mobile home on the north side of the highway. As the tornado continued northeast, it reintensifed to EF2 strength, causing major damage to several homes and snapping hundreds of trees. It then inflicted a continuous path of tree damage through forest and swamp land, crossing NC 130 and NC 211.[115] The tornado finally lifted east of NC 211.[117] It was the deadliest single tornado in Southeastern North Carolina since an F3 touched down on November 16, 2006,[14] and the first deadly tornado in Brunswick County.[118] The tornado caused three deaths, in the sixth consecutive year with tornado fatalities in February. There were also ten injuries.[119]

Mexico

Файл:Nieve en Monterrey.jpg
Snow in a chair in Monterrey, Mexico, on the early morning of February 15. Temperature was Шаблон:Convert.

The winter storm strained the power grids in northern Mexico, leading to cascading blackouts for 4.7 million homes and businesses in Mexico.[3] Temperatures as low as Шаблон:Convert were recorded, as shortages of natural gas led to blackouts in Nuevo León, Coahuila, Tamaulipas, and Chihuahua along the border with Texas.[120] At least 14 people died in Ciudad Juárez, Chihuahua; Río Bravo and Matamoros, Tamaulipas; and Monterrey, Nuevo León; due to the winter storm.[15][10] President Andrés Manuel López Obrador (AMLO) said on February 17 that Mexico would increase the use of oil and coal to produce electricity, as well as purchase three shiploads of natural gas to deal with power shortages. He also warned that periodic local outages would continue through February 21.[121] Local authorities said that no hospitals had been left without electricity at any time.[122] The storm was estimated to have caused over US$1.5 billion in damages in Mexico.[18]

Canada

In Ontario, snowfall warnings were issued in advance of the winter storm. School bus service was cancelled across the Greater Toronto Area, and schools were completely closed in Halton and Durham.[123] Шаблон:Convert of snow fell in Windsor, Шаблон:Convert at Toronto Pearson International Airport and Шаблон:Convert fell in Ottawa. The highest totals in the region were the over Шаблон:Convert in and around the Hamilton and Niagara Region.[124]

Aftermath

The storm was shortly followed by another major winter storm a few days later, which caused at least an additional 29 fatalities and US$2 billion in damage, worsening the 2021 Texas power crisis and hampering recovery efforts in the state.[125][126][127]

See also

Шаблон:Portal bar

Notes

Шаблон:Reflist

References

Шаблон:Reflist

External links

Шаблон:Commons category

Шаблон:2020–21 North American winter buttons Шаблон:United States winter storms Шаблон:2021 tornado outbreaks

  1. 1,0 1,1 1,2 1,3 Шаблон:Cite web
  2. 2,0 2,1 Шаблон:Cite web
  3. 3,0 3,1 3,2 3,3 3,4 Шаблон:Cite magazine
  4. 4,0 4,1 4,2 Шаблон:Cite web
  5. 5,0 5,1 Шаблон:Cite web
  6. 6,0 6,1 Шаблон:Cite web
  7. 7,0 7,1 Шаблон:Cite web
  8. Шаблон:Cite web
  9. 9,0 9,1 9,2 9,3 Шаблон:Cite web
  10. 10,0 10,1 Шаблон:Cite news
  11. 11,0 11,1 11,2 Ошибка цитирования Неверный тег <ref>; для сносок atleast246 не указан текст
  12. 12,0 12,1 Шаблон:Cite news
  13. 13,0 13,1 13,2 13,3 Шаблон:Cite web
  14. 14,0 14,1 14,2 Шаблон:Cite news
  15. 15,0 15,1 Шаблон:Cite news
  16. Ошибка цитирования Неверный тег <ref>; для сносок NCEI не указан текст
  17. 17,0 17,1 Шаблон:Cite report
  18. 18,0 18,1 18,2 Шаблон:Cite report
  19. Шаблон:Cite web
  20. Шаблон:Cite web
  21. 21,0 21,1 Шаблон:Cite web
  22. 22,0 22,1 22,2 22,3 22,4 22,5 Шаблон:Cite web
  23. Шаблон:Cite web
  24. Шаблон:Cite web
  25. Шаблон:Cite web
  26. Шаблон:Cite web
  27. Шаблон:Cite web
  28. Шаблон:Cite web
  29. Шаблон:Cite web
  30. Шаблон:Cite web
  31. Шаблон:Cite web
  32. Шаблон:Cite web
  33. Шаблон:Cite web
  34. Шаблон:Cite web
  35. Шаблон:Cite web
  36. Шаблон:Cite web
  37. Шаблон:Cite web
  38. Шаблон:Cite web
  39. Шаблон:Cite web
  40. Шаблон:Cite web
  41. Шаблон:Cite web
  42. 42,0 42,1 Шаблон:Cite news
  43. Шаблон:Cite web
  44. Шаблон:Cite web
  45. Шаблон:Cite web
  46. 46,0 46,1 Шаблон:Cite web
  47. 47,0 47,1 47,2 Шаблон:Cite tweet
  48. Шаблон:Cite news
  49. [https://portlandgeneral.com/news/2021-03-01-pge-restoration-complete-from-february-winter-storms storms PGE: Restoration complete from February winter storms], PGE, March 1, 2021
  50. Last Night’s Ice Storm Caused the Largest Power Outage in Oregon History, WWeek, February 15, 2021
  51. Storm will continue through Saturday, KOIN, February 13, 2021
  52. Шаблон:Cite web
  53. 2021 February Winter Storm Spotlight, ARCGIS Story Maps
  54. Record-breaking snowstorm wreaks havoc in Utah, Salt Lake Tribune, February 18, 2021
  55. Шаблон:Cite webШаблон:Subscription required
  56. Шаблон:Cite web
  57. Шаблон:Cite web
  58. Шаблон:Cite web
  59. Шаблон:Cite web
  60. The Great Texas Freeze triggered Houston's first-ever Wind Chill Warning, Fox Weather, February 10, 2022
  61. First-Ever Wind Chill Warning Issued For North Texas, CBS News
  62. Шаблон:Cite web
  63. Шаблон:Cite news
  64. Шаблон:Cite news
  65. Шаблон:Cite news
  66. Шаблон:Cite news
  67. Шаблон:Cite news
  68. Шаблон:Cite news
  69. Шаблон:Cite news
  70. Шаблон:Cite news
  71. Шаблон:Cite news
  72. Шаблон:Cite news
  73. Шаблон:Cite news
  74. Шаблон:Cite news
  75. Шаблон:Cite news
  76. Шаблон:Cite web
  77. Шаблон:Cite news
  78. Шаблон:Cite press release
  79. Шаблон:Cite news
  80. Шаблон:Cite news
  81. Шаблон:Cite news
  82. Шаблон:Cite news
  83. Шаблон:Cite news
  84. Шаблон:Cite news
  85. Big Bend National Park Sees Cold, Snow As Texas Freezes, National Park Traveler, February 18, 2023
  86. Шаблон:Cite web
  87. Шаблон:Cite news
  88. Шаблон:Cite webШаблон:Cite webШаблон:Cite webШаблон:Cite web
  89. Шаблон:Cite news
  90. Шаблон:Cite news
  91. Шаблон:Cite news
  92. Шаблон:Cite web
  93. Шаблон:Cite web
  94. Шаблон:Cite news
  95. Шаблон:Cite news
  96. Шаблон:Cite journal
  97. Шаблон:Cite web
  98. Шаблон:Cite web
  99. Шаблон:Cite web
  100. Шаблон:Cite web
  101. Шаблон:Cite web
  102. CTA Service Suspended on Multiple Lines Due to Snowstorm, NBC Chicago, February 16, 2021
  103. Chicago Sees Snowiest 3-Week Stretch Since Blizzard of 1979, NBC Chicago, February 17, 2021
  104. Шаблон:Cite news
  105. Recording-breaking snow recorded in Milwaukee, National Weather Service says, TMJ
  106. Шаблон:Cite web
  107. Шаблон:Cite report
  108. Шаблон:Cite news
  109. Шаблон:Cite report
  110. Шаблон:Cite web
  111. Шаблон:Cite web
  112. Шаблон:Cite report
  113. Шаблон:Cite report
  114. Шаблон:Cite report
  115. 115,0 115,1 Шаблон:Cite report
  116. Шаблон:Cite news
  117. Шаблон:Cite news
  118. Brunswick County, NC EF3 Tornado of February 15, 2021, National Weather Service Wilmington, North Carolina
  119. February Tornadoes Have Been Deadly Six Straight Years in the U.S., The Weather Channel, February 15, 2022
  120. Шаблон:Cite news
  121. Шаблон:Cite news
  122. Шаблон:Cite news
  123. Шаблон:Cite web
  124. Шаблон:Cite tweet
  125. Шаблон:Cite web
  126. Шаблон:Cite web
  127. Шаблон:Cite web