[{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","@id":"https:\/\/wiki.edu.vn\/en\/wiki40\/2018-united-states-canada-tornado-outbreak\/#BlogPosting","mainEntityOfPage":"https:\/\/wiki.edu.vn\/en\/wiki40\/2018-united-states-canada-tornado-outbreak\/","headline":"2018 United States\u2013Canada tornado outbreak","name":"2018 United States\u2013Canada tornado outbreak","description":"2018 United States\u2013Canada tornado outbreak Major damage to apartment buildings in Gatineau, Quebec, as a result of an EF3 tornado","datePublished":"2014-01-22","dateModified":"2014-01-22","author":{"@type":"Person","@id":"https:\/\/wiki.edu.vn\/en\/wiki40\/author\/lordneo\/#Person","name":"lordneo","url":"https:\/\/wiki.edu.vn\/en\/wiki40\/author\/lordneo\/","image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/c9645c498c9701c88b89b8537773dd7c?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/c9645c498c9701c88b89b8537773dd7c?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"Enzyklop\u00e4die","logo":{"@type":"ImageObject","@id":"https:\/\/wiki.edu.vn\/wiki4\/wp-content\/uploads\/2023\/08\/download.jpg","url":"https:\/\/wiki.edu.vn\/wiki4\/wp-content\/uploads\/2023\/08\/download.jpg","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/1\/1a\/Tornado_georgesbilodeau01.jpg\/260px-Tornado_georgesbilodeau01.jpg","url":"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/1\/1a\/Tornado_georgesbilodeau01.jpg\/260px-Tornado_georgesbilodeau01.jpg","height":"195","width":"260"},"url":"https:\/\/wiki.edu.vn\/en\/wiki40\/2018-united-states-canada-tornado-outbreak\/","wordCount":21223,"articleBody":"2018 United States\u2013Canada tornado outbreakMajor damage to apartment buildings in Gatineau, Quebec, as a result of an EF3 tornadoFormedSeptember 20, 2018;[1]EDTDissipatedSeptember 21, 2018Highest windsTornadoesconfirmed37Max. rating1EF3 tornadoFatalities1 fatality (non-tornadic), 31 injuriesDamage$295 million (2018 USD)Power outages300,000Areas affectedOhio, Iowa, Minnesota, Wisconsin, Ontario, and Quebec1Most severe tornado damage; see Enhanced Fujita scaleA destructive, two-day tornado outbreak affected the Great Lakes region of the United States and the National Capital Region of Canada in late-September. A total of 37\u00a0tornadoes were confirmed, including a long-tracked EF3 tornado that moved along a 80\u00a0km (50\u00a0mi) path from near Dunrobin, Ontario to Gatineau, Quebec, and an EF2\u00a0tornado in the Nepean sector of Ottawa. The tornadoes in Ottawa-Gatineau were declared one of the ten most significant weather events of 2018 in Canada by the Meteorological Service of Canada.[2]Numerous tornadoes touched down in Minnesota on the initial day of the outbreak, including a high-end EF2\u00a0tornado that caused major damage in Morristown, Minnesota. Other damage occurred in Eastern Ontario due to downburst winds from the severe thunderstorms. One death was reported as a result of straight-line winds that occurred during the outbreak, and 31\u00a0people were injured.Table of ContentsMeteorological synopsis[edit]Confirmed tornadoes[edit]September 20 event[edit]September 21 event[edit]Aftermath[edit]The National Capital Region power outages[edit]See also[edit]References[edit]Meteorological synopsis[edit]In the Great Lakes region of the United States, a warm front surged in a hot, unstable air mass ahead of a strong cold front on September 20. An enhanced risk of severe weather was issued by the Storm Prediction Center (SPC), including a 10% hatched risk area for tornadoes stretching from southern Minnesota into Wisconsin.[3] Later that evening, a quasi-linear convective system with numerous embedded circulations and bowing line segments produced many tornadoes across southern Minnesota. This included a high-end EF2\u00a0tornado that heavily damaged or destroyed many homes in the town of Morristown, Minnesota. Another EF2\u00a0tornado damaged the local airport in Faribault. A few tornadoes were also confirmed in Iowa, Wisconsin, and Ohio, and damaging winds from the line of storms also caused significant damage. Embedded downbursts produced destructive straight-line winds of up to 100\u00a0mph (160\u00a0km\/h) during the event. With 25 tornadoes in a matter of hours, this event was Minnesota’s third most prolific tornado day on record.[4][5]The severe weather threat was expected to move eastward to affect southern Ontario and a part of southwestern Quebec the next day.[6] On September 21, a significant severe weather threat was confirmed across southern Ontario and the Outaouais region of Quebec, with the potential for severe thunderstorms and tornadoes noted.[7]Severe thunderstorm watches and warnings along with wind warnings and special weather statements were issued across parts of Ontario as early as the pre-dawn hours of September 21, which remained in effect until that evening. The warm humid air mass reached Ontario that morning of September 21, along with localized thunderstorms with heavy torrential downpours in most of the areas across southern Ontario and again later that day during the tornado outbreak. Record breaking temperatures across southern Ontario ranged from the high 20s into the low 30s.[8][9]Tornado watches and warnings were issued by that afternoon.  Radar imagery at 2100 UTC (5 pm local) of a tornadic supercell thunderstorm approaching Gatineau, Quebec on September\u00a021. Note the clearly visible hook echo.On the afternoon of September 21, 2018, a localized outbreak of tornadoes impacted eastern Ontario and southern Quebec. During the event, Environment Canada issued numerous tornado warnings as multiple discrete tornadic supercells moved through the area.[10] Between 3:30\u00a0p.m. and 6:30\u00a0p.m. EDT, seven tornadoes, six of which were strong, caused severe damage in and around the National Capital Region of Canada.The most significant tornado of the event made a direct strike on the small community of Dunrobin in the west end of Ottawa, then crossed the Ottawa River and struck the residential part of Breckenridge, continued through the northern part of Aylmer, then struck the Mont-Bleu residential area in the Hull sector of Gatineau, Quebec. The Dunrobin-Gatineau tornado was classified as a high-end, long-tracked EF3 tornado,[11] with peak winds reaching 265\u00a0km\/h (165\u00a0mph).[12] Approximately 25\u00a0people were injured by the EF3\u00a0tornado, six of those taken to the hospital and five people had life-threatening injuries.[13] At least 200 buildings were damaged and an unknown number were destroyed along the path.[14][15] During the event, the long-tracked EF3\u00a0tornado that struck Dunrobin and Gatineau was visible on the horizon behind the Parliament Hill buildings in Ottawa.[16] A still image of the funnel was also captured from a live webcam.[17]A second damaging tornado, rated\u00a0EF2, caused significant damage in the Arlington Woods, Craig Henry, and Merivale Road residential areas of Nepean, with peak winds of 220\u00a0km\/h (135\u00a0mph)[18] The tornadoes were preceded by severe thunderstorms throughout Ontario and Quebec.[19][20][21][22] Five other tornadoes also caused minor to moderate damage in the region, though they remained over remote forested areas and mostly damaged trees and power lines.[23][24][25]The severe weather threat then diminished by late Friday evening, with cool windy conditions.[26]Confirmed tornadoes[edit]September 20 event[edit]List of tornadoes reported on September 20, 2018 in the MidwestList of confirmed tornadoes \u2013 Thursday, September 20, 2018[note 1]EF#LocationCounty \/ ParishStateStart Coord.Time (UTC)Path lengthMax widthSummaryEF1NE of MiddlefieldGeaugaOH41\u00b030\u203206\u2033N 81\u00b004\u203205\u2033W\ufeff \/ \ufeff41.5017\u00b0N 81.068\u00b0W\ufeff \/ 41.5017; -81.068\ufeff (Middlefield (Sep. 20, EF1))18:23\u201318:313.18\u00a0mi (5.12\u00a0km)25\u00a0yd (23\u00a0m)A building under construction suffered significant damage and tree limbs were snapped. Outbuildings and a house sustained minor damage as well.[27]EF1NE of MiddlefieldGeauga, TrumbullOH41\u00b028\u203253\u2033N 81\u00b001\u203214\u2033W\ufeff \/ \ufeff41.4814\u00b0N 81.0206\u00b0W\ufeff \/ 41.4814; -81.0206\ufeff (Middlefield (Sep. 20, EF1))18:31\u201318:414.11\u00a0mi (6.61\u00a0km)25\u00a0yd (23\u00a0m)Two single-wide mobile homes were significantly damaged. Otherwise, damage was confined to trees.[28][29]EF1SuperiorDickinson, EmmetIA43\u00b025\u203226\u2033N 94\u00b059\u203224\u2033W\ufeff \/ \ufeff43.4238\u00b0N 94.9899\u00b0W\ufeff \/ 43.4238; -94.9899\ufeff (Superior (Sep. 20, EF1))22:21\u201322:285.07\u00a0mi (8.16\u00a0km)35\u00a0yd (32\u00a0m)Trees were damaged in town, and a garage was destroyed. A two-story office building at the Superior Ethanol plant sustained major roof damage, broken windows, and partial exterior wall failure on the second floor. A weather station at the plant measured a 99\u00a0mph (159\u00a0km\/h) wind gust. Crops were damaged as well.[30][31]EF1Northern Granada to S of HuntleyMartin, FaribaultMN43\u00b041\u203253\u2033N 94\u00b021\u203211\u2033W\ufeff \/ \ufeff43.698\u00b0N 94.353\u00b0W\ufeff \/ 43.698; -94.353\ufeff (Granada (Sep. 20, EF1))22:52\u201322:596.48\u00a0mi (10.43\u00a0km)220\u00a0yd (200\u00a0m)This tornado touched down in Granada, where a house had its roof blown off, a small and unanchored home was shifted off its foundation and leveled, trees were downed, garages were destroyed, and other homes sustained roof damage. East of town, trees were snapped and sheet metal was strewn through fields.[32][33]EF0Garden CityBlue EarthMN44\u00b002\u203236\u2033N 94\u00b009\u203259\u2033W\ufeff \/ \ufeff44.0432\u00b0N 94.1665\u00b0W\ufeff \/ 44.0432; -94.1665\ufeff (Garden City (Sep. 20, EF0))22:58\u201323:001.15\u00a0mi (1.85\u00a0km)70\u00a0yd (64\u00a0m)A weak tornado struck Garden City, downing trees at the fairgrounds. Outside of town, soybean fields were damaged and additional trees were downed.[34]EF0SW of SkylineBlue EarthMN44\u00b006\u203256\u2033N 94\u00b004\u203243\u2033W\ufeff \/ \ufeff44.1155\u00b0N 94.0785\u00b0W\ufeff \/ 44.1155; -94.0785\ufeff (Skyline (Sep. 20, EF0))23:04\u201323:050.84\u00a0mi (1.35\u00a0km)70\u00a0yd (64\u00a0m)A weak tornado caused minor tree damage. A house sustained roof damage from a falling tree.[35]EF1Lake ElysianWasecaMN44\u00b008\u203224\u2033N 93\u00b045\u203240\u2033W\ufeff \/ \ufeff44.1401\u00b0N 93.7612\u00b0W\ufeff \/ 44.1401; -93.7612\ufeff (Janesville (Sep. 20, EF1))23:19\u201323:257.13\u00a0mi (11.47\u00a0km)440\u00a0yd (400\u00a0m)A house sustained roof loss and total destruction of its garage. The home owner was thrown from the garage into his yard, and sustained minor injuries. Outbuildings were damaged, a grain bin was thrown into a field. Other homes sustained minor damage, and trees were damaged as well.[36]EF0E of JanesvilleWasecaMN44\u00b007\u203207\u2033N 93\u00b036\u203210\u2033W\ufeff \/ \ufeff44.1186\u00b0N 93.6027\u00b0W\ufeff \/ 44.1186; -93.6027\ufeff (Janesville (Sep. 20, EF0))23:20\u201323:210.73\u00a0mi (1.17\u00a0km)20\u00a0yd (18\u00a0m)High-resolution satellite imagery confirmed a brief tornado through corn fields.[37]EF1SSW of WasecaWasecaMN43\u00b059\u203233\u2033N 93\u00b039\u203248\u2033W\ufeff \/ \ufeff43.9926\u00b0N 93.6634\u00b0W\ufeff \/ 43.9926; -93.6634\ufeff (Waseca (Sep. 20, EF1))23:20\u201323:3010.88\u00a0mi (17.51\u00a0km)300\u00a0yd (270\u00a0m)A tornado damaged trees and a silo along its path.[38]EF1SE of Elysian to NE of WatervilleWaseca, Le SueurMN44\u00b010\u203254\u2033N 93\u00b037\u203250\u2033W\ufeff \/ \ufeff44.1816\u00b0N 93.6305\u00b0W\ufeff \/ 44.1816; -93.6305\ufeff (Waterville (Sep. 20, EF1))23:25\u201323:327.17\u00a0mi (11.54\u00a0km)330\u00a0yd (300\u00a0m)This tornado struck Waterville, where numerous trees were downed, many of which landed on homes. A one-story home had a large section of its roof torn off as well. Outside of town, tree limbs were snapped.[39][40]EF1Eastern Waseca to SW of MedfordWaseca, SteeleMN44\u00b004\u203247\u2033N 93\u00b028\u203239\u2033W\ufeff \/ \ufeff44.0797\u00b0N 93.4774\u00b0W\ufeff \/ 44.0797; -93.4774\ufeff (Waseca (Sep. 20, EF1))23:28\u201323:3711.13\u00a0mi (17.91\u00a0km)350\u00a0yd (320\u00a0m)A silo and a grain bin were both destroyed. A few sheds and outbuildings, as well as many trees and crops, were damaged.[41][42]EF2Southeastern MorristownRiceMN44\u00b012\u203235\u2033N 93\u00b027\u203201\u2033W\ufeff \/ \ufeff44.2098\u00b0N 93.4504\u00b0W\ufeff \/ 44.2098; -93.4504\ufeff (Morristown (Sep. 20, EF2))23:31\u201323:364.94\u00a0mi (7.95\u00a0km)300\u00a0yd (270\u00a0m)This strong tornado touched down in the southeastern part of Morristown, and caused high-end EF2 damage as it impacted residential areas. Many trees were snapped and numerous homes were badly damaged, some of which lost roofs and exterior walls. One home was left with only a few walls standing. The tornado continued to the northeast outside of town, where a turkey barn and outbuildings were destroyed. Crops were damaged as well.[43]EF1N of Morristown to NE of Roberds LakeRiceMN44\u00b015\u203210\u2033N 93\u00b026\u203217\u2033W\ufeff \/ \ufeff44.2527\u00b0N 93.438\u00b0W\ufeff \/ 44.2527; -93.438\ufeff (Morristown (Sep. 20, EF1))23:35\u201323:448.57\u00a0mi (13.79\u00a0km)440\u00a0yd (400\u00a0m)Many outbuildings were destroyed, and numerous trees were snapped or uprooted along the path. A shed was crushed by a large tree.[44]EF1OwatonnaSteeleMN44\u00b003\u203234\u2033N 93\u00b019\u203255\u2033W\ufeff \/ \ufeff44.0595\u00b0N 93.332\u00b0W\ufeff \/ 44.0595; -93.332\ufeff (Owatonna (Sep. 20, EF1))23:35\u201323:428.12\u00a0mi (13.07\u00a0km)300\u00a0yd (270\u00a0m)Southwest of town, crops and trees were damaged and a barn was destroyed. In Owatonna, power poles and power lines were snapped, a large factory building sustained minor exterior damage, homes had shingles ripped off, and many trees were snapped or uprooted, some of which landed on homes.[45]EF2Northwestern FaribaultRiceMN44\u00b018\u203213\u2033N 93\u00b020\u203241\u2033W\ufeff \/ \ufeff44.3036\u00b0N 93.3448\u00b0W\ufeff \/ 44.3036; -93.3448\ufeff (Faribault (Sep. 20, EF2))23:37\u201323:402.95\u00a0mi (4.75\u00a0km)600\u00a0yd (550\u00a0m)Significant damage occurred at the Faribault Airport, where several hangars were destroyed and roughly 80 airplanes were damaged or destroyed. The footings of one hangar were ripped from its frame. Hundreds of trees were downed, and outbuildings were damaged as well.[46]EF1Roberds LakeRiceMN44\u00b020\u203201\u2033N 93\u00b021\u203246\u2033W\ufeff \/ \ufeff44.3336\u00b0N 93.3628\u00b0W\ufeff \/ 44.3336; -93.3628\ufeff (Roberds Lake (Sep. 20, EF1))23:40\u201323:421.57\u00a0mi (2.53\u00a0km)150\u00a0yd (140\u00a0m)Numerous trees were snapped or uprooted, some of which landed on homes and cabins. Outbuildings were destroyed, and one home sustained broken windows and considerable roof damage.[47]EF1N of Medford to E of FaribaultRiceMN44\u00b011\u203247\u2033N 93\u00b014\u203216\u2033W\ufeff \/ \ufeff44.1965\u00b0N 93.2379\u00b0W\ufeff \/ 44.1965; -93.2379\ufeff (Faribault (Sep. 20, EF1))23:40\u201323:479.06\u00a0mi (14.58\u00a0km)500\u00a0yd (460\u00a0m)Outbuildings, grain bins, machine sheds, and silos were damaged or destroyed along the path. Homes had portions of their roofs torn off, and many trees were snapped or uprooted.[48]EF1S of NerstrandRice, GoodhueMN44\u00b014\u203248\u2033N 93\u00b007\u203251\u2033W\ufeff \/ \ufeff44.2466\u00b0N 93.1307\u00b0W\ufeff \/ 44.2466; -93.1307\ufeff (Nerstrand (Sep. 20, EF1))23:44\u201323:507.17\u00a0mi (11.54\u00a0km)300\u00a0yd (270\u00a0m)A few sheds and outbuildings, as well as numerous corn and soy bean fields, were damaged. A silo lost a roof panel.[49][50]EF1N of FaribaultRiceMN44\u00b021\u203204\u2033N 93\u00b015\u203257\u2033W\ufeff \/ \ufeff44.351\u00b0N 93.2657\u00b0W\ufeff \/ 44.351; -93.2657\ufeff (Faribault (Sep. 20, EF1))23:44\u201323:484.66\u00a0mi (7.50\u00a0km)440\u00a0yd (400\u00a0m)Numerous large trees were damaged along the path.[51]EF1S of DundasRiceMN44\u00b021\u203254\u2033N 93\u00b018\u203213\u2033W\ufeff \/ \ufeff44.3649\u00b0N 93.3035\u00b0W\ufeff \/ 44.3649; -93.3035\ufeff (Dundas (Sep. 20, EF1))23:45\u201323:505.75\u00a0mi (9.25\u00a0km)440\u00a0yd (400\u00a0m)This tornado damaged power poles and trees, twisted road signs, and left a convergent pattern in a corn field.[52]EF0DundasRiceMN44\u00b024\u203205\u2033N 93\u00b017\u203235\u2033W\ufeff \/ \ufeff44.4013\u00b0N 93.293\u00b0W\ufeff \/ 44.4013; -93.293\ufeff (Dundas (Sep. 20, EF0))23:46\u201323:515.53\u00a0mi (8.90\u00a0km)75\u00a0yd (69\u00a0m)Pine trees were uprooted and billboards were destroyed to the southwest of town. In Dundas, numerous trees were snapped or uprooted.[53]EF1SE of NorthfieldRice, GoodhueMN44\u00b024\u203254\u2033N 93\u00b007\u203236\u2033W\ufeff \/ \ufeff44.4149\u00b0N 93.1268\u00b0W\ufeff \/ 44.4149; -93.1268\ufeff (Northfield (Sep. 20, EF1))23:52\u201323:575.31\u00a0mi (8.55\u00a0km)550\u00a0yd (500\u00a0m)A pizza restaurant housed in a large barn was leveled by this high-end EF1 tornado. Other outbuildings were damaged or destroyed, and trees were damaged.[54][55]EF0S of WanamingoGoodhueMN44\u00b016\u203202\u2033N 92\u00b054\u203202\u2033W\ufeff \/ \ufeff44.2672\u00b0N 92.9006\u00b0W\ufeff \/ 44.2672; -92.9006\ufeff (Wanamingo (Sep. 20, EF0))23:56\u201300:058.72\u00a0mi (14.03\u00a0km)250\u00a0yd (230\u00a0m)Corn crop was damaged, and tree limbs were snapped, some of which pierced the roof of a machine shed.[56]EF1Southern Cannon FallsGoodhueMN44\u00b028\u203238\u2033N 92\u00b055\u203214\u2033W\ufeff \/ \ufeff44.4771\u00b0N 92.9206\u00b0W\ufeff \/ 44.4771; -92.9206\ufeff (Cannon Falls (Sep. 20, EF1))00:01\u201300:031.86\u00a0mi (2.99\u00a0km)440\u00a0yd (400\u00a0m)Numerous trees were snapped or uprooted, with many falling on homes and vehicles.[57]EF0N of Cannon FallsDakota, GoodhueMN44\u00b032\u203231\u2033N 92\u00b058\u203208\u2033W\ufeff \/ \ufeff44.5419\u00b0N 92.9688\u00b0W\ufeff \/ 44.5419; -92.9688\ufeff (Cannon Falls (Sep. 20, EF0))00:02\u201300:053.19\u00a0mi (5.13\u00a0km)70\u00a0yd (64\u00a0m)Roofing material was removed from a commercial facility, and a convergent pattern was noted in crops.[58][59]EF0S of New TrierDakotaMN44\u00b034\u203258\u2033N 92\u00b058\u203230\u2033W\ufeff \/ \ufeff44.5829\u00b0N 92.975\u00b0W\ufeff \/ 44.5829; -92.975\ufeff (New Trier (Sep. 20, EF0))00:04\u201300:084.61\u00a0mi (7.42\u00a0km)220\u00a0yd (200\u00a0m)Outbuildings were damaged at several farms.[60]EF0NE of ZumbrotaGoodhue, WabashaMN44\u00b020\u203207\u2033N 92\u00b039\u203204\u2033W\ufeff \/ \ufeff44.3353\u00b0N 92.6512\u00b0W\ufeff \/ 44.3353; -92.6512\ufeff (Zumbrota (Sep. 20, EF0))00:09\u201300:146.22\u00a0mi (10.01\u00a0km)150\u00a0yd (140\u00a0m)This tornado struck several farms, destroying grain bins and outbuildings.[61][62][63]EF0Prairie IslandGoodhue, PierceMN, WI44\u00b038\u203218\u2033N 92\u00b040\u203243\u2033W\ufeff \/ \ufeff44.6382\u00b0N 92.6787\u00b0W\ufeff \/ 44.6382; -92.6787\ufeff (Prairie Island (Sep. 20, EF0))00:16\u201300:193.23\u00a0mi (5.20\u00a0km)100\u00a0yd (91\u00a0m)This brief, weak tornado caused minor damage.[64][65]EF0E of EllsworthPierceWI44\u00b043\u203254\u2033N 92\u00b028\u203226\u2033W\ufeff \/ \ufeff44.7318\u00b0N 92.4738\u00b0W\ufeff \/ 44.7318; -92.4738\ufeff (Ellsworth (Sep. 20, EF0))00:27\u201300:291.67\u00a0mi (2.69\u00a0km)140\u00a0yd (130\u00a0m)A barn, sheds, trees and outbuildings were damaged.[66]September 21 event[edit]List of tornadoes reported on September 21, 2018 in Ontario\/QuebecList of confirmed tornadoes \u2013 Friday, September 21, 2018[note 1]EF#LocationCounty\/Census divisionState\/ProvinceStart Coord.Time (UTC)Path lengthMax widthSummaryEF3W of Kinburn to GatineauOttawa, GatineauON, QC45\u00b023\u203231\u2033N 76\u00b011\u203220\u2033W\ufeff \/ \ufeff45.392\u00b0N 76.189\u00b0W\ufeff \/ 45.392; -76.189\ufeff (Kinburn, ON)20:55\u2014\u2014This destructive tornado touched down in Ontario near Kinburn, heavily damaging multiple homes, destroying barns and outbuildings, and mangling farm machinery. The tornado then struck Dunrobin at high-end EF3 strength, damaging or destroying numerous homes, a couple of which were leveled or swept from their foundations. Vehicles were thrown and destroyed, debris was scattered through fields, and a shopping plaza was severely damaged. The tornado maintained EF3 strength as it crossed into Quebec and moved through densely populated areas of Gatineau. Many apartment buildings sustained major structural damage in this area, many of which had their roofs torn off, with some sustaining collapse of their top floor exterior walls. Trees were snapped and debarked, several car dealerships were damaged, power poles were snapped, and cars were tossed and damaged as well. At least 200 buildings were damaged or destroyed, and 25 people were injured, five critically.[14][11][67]EF2NepeanOttawaON45\u00b019\u203238\u2033N 75\u00b047\u203204\u2033W\ufeff \/ \ufeff45.327147\u00b0N 75.784360\u00b0W\ufeff \/ 45.327147; -75.784360\ufeff (Arlington Park)22:3013\u00a0km (8.1\u00a0mi)\u2014A rain-wrapped, high-end EF2 tornado touched down in western Nepean and struck the Arlington Woods and Craig Henry neighbourhoods, where many homes and apartment buildings were damaged. Some homes sustained roof loss, and a few sustained partial exterior wall failure as well. A church had much of its roof ripped off, and numerous large trees were snapped or uprooted, many of which landed on homes and vehicles. A metal truss tower was toppled over and mangled as well. Further east, a power substation was severely damaged, businesses had their roofs blown off, power poles were snapped, and a box truck was overturned. The Colonnade Road Business Park also sustained considerable damage. Additional trees and tree limbs were downed in the Greenboro neighbourhood before the tornado dissipated.[18][68][67]EF2Calabogie to White LakeRenfrewON\u2014\u2014\u2014\u2014This tornado touched down in Calabogie, snapping and uprooting many trees, causing roof damage to homes, and destroying a garage. Injuries were reported in this tornado.[69][70][71][67]EF1SSE of Sharbot LakeFrontenacON\u2014\u20149.2\u00a0km (5.7\u00a0mi)\u2014A tornado touched down and caused mainly tree damage near Sharbot Lake and to the north of St. George Lake. This event was initially classified as a downburst, until further analysis determined that it was a tornado.[72][67]EF2SE of Val-des-BoisPapineauQC\u2014\u2014\u2014\u2014Many trees were snapped and several buildings were damaged along the path. Homes sustained roof damage, and boats and docks were damaged as well.[73][67]EF2E of Mont-LaurierLa Vall\u00e9e-de-la-GatineauQC\u2014\u2014\u2014\u2014This tornado tracked through densely forested areas near the Baskatong Reservoir, snapping trees and damaging power lines.[73][67]EF2N of Otter LakePontiacQC\u2014\u2014\u2014\u2014A tornado tracked through densely forested areas, downing numerous trees along its path.[73][67]Aftermath[edit]Damage from the tornadoes caused more than 272,000 customers of the National Capital Region to lose power, with some of the outages lasting for days.[74][75][76] In addition to the tornadoes, microbursts and hail from the severe thunderstorms also caused considerable damage across Ontario and Quebec.[13][77][78][79]Most of the severely damaged buildings that remained intact after the tornado were under repair. The Dunrobin Plaza shopping centre, which was severely damaged by the tornado, was demolished in December 2018, more than two months after the tornado.[80][81] In October 2018, a month after the storm, it was announced that the September 21 tornadoes caused a massive $295 million in insurance costs, making it one of 2018’s costliest storms in Ontario.[82][83][84][85][86]The Dunrobin-Gatineau EF3\u00a0tornado was the strongest to hit eastern Ontario since 1902.[87][88] The last time an EF3\u00a0tornado occurred in Ontario prior to this event was the Goderich tornado in August 2011. One non-tornadic death occurred as a result of this severe weather outbreak. The fatality was reported in the township of Rideau Lakes, Ontario, after a man was struck by a falling tree after being caught in straight-line winds.[89]The National Capital Region power outages[edit]One of the sites that was affected by the Arlington Woods EF2\u00a0tornado was the Merivale electrical substation, one of the two major stations in the city, located near the intersection of Merivale and Hunt Club Road in western Ottawa. While there is no proof confirming whether or not the tornado directly struck the station, it did rip off the roof of two nearby buildings, slamming into the infrastructure, insulators, and wires.[90]Furthermore, the effects of the storm snapped approximately 80 to 90 Hydro poles in the area, downing many others, and leaving pole and wires dangling.[91]This was the main reason for the longest power outages in the Ottawa-Gatineau region, affecting more than 300,000 customers of the 331,777 total customers who use Hydro Ottawa, plus those served on the Quebec side by Hydro-Qu\u00e9bec.[92] Rebuilding the power plant was especially difficult, which took Hydro One and Hydro Ottawa two days working to repair enough of the damage to restore power. Finally, on the evening of September 22, power was restored in some neighbourhoods in southwestern Ottawa.[90] Repair of the downed poles was done as fast as possible, as to restore heat and power as well in several residences.Although electricity had been restored, the power plant had still required additional repairs, and Hydro One continued working on critical repairs to the station in order to return it to its full potential state. Planned power outages around the city affected more than 50,000 Hydro One and Hydro Ottawa customers to replace important elements.[93] Work at the Merivale station was expected to last for several months.The Ottawa Macdonald\u2013Cartier International Airport was forced to use backup power during the storms. No damage was reported at the airport.[94][95]See also[edit]References[edit]^ CONFIRMED: Two tornadoes, one downburst hit Ottawa region, The Weather Network,September 22, 2018^ Dave Phillips of the Meteorological Service of Canada (December 2, 2018). “Ottawa-Gatineau tornadoes on summer’s last day”. Canada\u2019s top 10 weather stories of 2018. ECCC. Retrieved December 24, 2018.^ Storm Prediction Center (September 20, 2018). “Sep 20, 2018 0600 UTC Day 1 Convective Outlook”. National Weather Service. Retrieved November 20, 2018.^ US Weather Forecast Office in Twin Cities, MN (November 15, 2018). “September 20, 2018 Tornado Outbreak and Widespread Damaging Wind (updated 11\/15)”. National Weather Service. Retrieved November 20, 2018.^ US Weather Forecast Office in Cleveland, OH (November 15, 2018). “Two Tornadoes near Middlefield, OH Sept. 20, 2018”. National Weather Service. Retrieved November 20, 2018.^ Storm Prediction Center (September 20, 2018). “Sep 20, 2018 0600 UTC Day 2 Convective Outlook”. National Weather Service. Retrieved November 20, 2018.^ “Elevated Severe Thunderstorm Risk With Damaging Winds, Lightning, Hail and Possibly an Isolated Tornado Risk (Fri, Sept 21st, 2018)”. InstantWeather. September 21, 2018. Retrieved November 20, 2018.^ Wind gusted to 83\u00a0km\/h in the Sault, yesterday: Environment Canada. Also confirms tornado in Ottawa area and high temperature records broken in areas of southern Ontario, sootoday.com, September 22, 2018^ Ottawa International Airport, ON weather historical data for September 21, 2018, Wunderground, September 21, 2018^ Tornado warning issued for Ottawa-Gatineau area, CBC News, September 21, 2018^ a b “Tornado aftermath: The science behind the twisters”. The Ottawa Citizen. 2018-09-23. Retrieved 2018-09-24.^ “Tornado hits Ottawa-Gatineau area, damaging buildings and flipping cars | CTV News”. Retrieved 2018-09-22.^ a b “Updated: ‘It’s devastating’: Tornado levels houses, leaves trail of destruction”. 22 September 2018.^ a b “Tornado tears through Ottawa and Gatineau area, causing injuries | The Star”. thestar.com. Retrieved 2018-09-22.^ “Dash cam of tornado and the damage in Dunrobin. The Dunrobin businesses was devastated, but the driver was unharmed”. CBC News. September 2018.^ The sky does not look good, Twitter, September 21, 2018^ Live shot of Parliament Hill downtown\u00a0Ottawa right now. Tornado warned storm cell tracking north of downtown towards\u00a0Gatineau, Kelly Sonnenburg TWN\/trendsmap.com, September 21, 2018 (archived)^ a b “Tornado destroys homes, hydro poles in Hunt Club and Greenbank area”. CBC News. September 21, 2018.^ Inc., Pelmorex Weather Networks. “‘Dynamic fall storm’ slams Quebec with severe weather”. The Weather Network. Retrieved 2018-09-22. ^ “At least 2 tornadoes touch down near Ottawa; about 272,000 without power in Ontario and Quebec”. Global News. Retrieved 2018-09-22.^ Here’s how the Ottawa-Gatineau tornadoes formed so quickly, Global News, September 24, 2018^ Tornado strikes were ‘luck of the draw,’ says meteorologist, CBC News, September 23, 2018^ “6 tornadoes hit Ottawa-Gatineau region, Environment Canada says”. CBC News. Retrieved 2018-09-26.^ Map of where the six tornadoes touched down in Ottawa-Gatineau areas on September 21, 2018, CBC News, September 25, 2018^ UPDATE: Officials increase Friday’s tornado count to SIX, The Weather Network, September 26, 2018^ Ontario: Cool down follows damaging wind storm, The Weather Network, September 21, 2018^ Ohio Event Report: EF1 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office in Cleveland, Ohio. 2018. Retrieved March 14, 2019.^ Ohio Event Report: EF1 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office in Cleveland, Ohio. 2018. Retrieved March 14, 2019.^ Ohio Event Report: EF1 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office in Cleveland, Ohio. 2018. Retrieved March 14, 2019.^ Iowa Event Report: EF1 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office in Sioux Falls, South Dakota. 2018. Retrieved March 14, 2019.^ Iowa Event Report: EF0 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office in Des Moines, Iowa. 2018. Retrieved March 14, 2019.^ Minnesota Event Report: EF1 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office Twin Cities, Minnesota. 2018. Retrieved March 14, 2019.^ Minnesota Event Report: EF0 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office Twin Cities, Minnesota. 2018. Retrieved March 14, 2019.^ Minnesota Event Report: EF0 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office Twin Cities, Minnesota. 2018. Retrieved March 14, 2019.^ Minnesota Event Report: EF0 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office Twin Cities, Minnesota. 2018. Retrieved March 14, 2019.^ Minnesota Event Report: EF1 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office Twin Cities, Minnesota. 2018. Retrieved March 14, 2019.^ Minnesota Event Report: EF0 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office Twin Cities, Minnesota. 2018. Retrieved March 14, 2019.^ Minnesota Event Report: EF1 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office Twin Cities, Minnesota. 2018. Retrieved March 14, 2019.^ Minnesota Event Report: EF0 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office Twin Cities, Minnesota. 2018. Retrieved March 14, 2019.^ Minnesota Event Report: EF0 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office Twin Cities, Minnesota. 2018. Retrieved March 14, 2019.^ Minnesota Event Report: EF0 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office Twin Cities, Minnesota. 2018. Retrieved March 14, 2019.^ Minnesota Event Report: EF0 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office Twin Cities, Minnesota. 2018. Retrieved March 14, 2019.^ Minnesota Event Report: EF2 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office Twin Cities, Minnesota. 2018. Retrieved March 14, 2019.^ Minnesota Event Report: EF1 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office Twin Cities, Minnesota. 2018. Retrieved March 14, 2019.^ Minnesota Event Report: EF1 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office Twin Cities, Minnesota. 2018. Retrieved March 14, 2019.^ Minnesota Event Report: EF2 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office Twin Cities, Minnesota. 2018. Retrieved March 14, 2019.^ Minnesota Event Report: EF1 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office Twin Cities, Minnesota. 2018. Retrieved March 14, 2019.^ Minnesota Event Report: EF1 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office Twin Cities, Minnesota. 2018. Retrieved March 14, 2019.^ Minnesota Event Report: EF1 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office Twin Cities, Minnesota. 2018. Retrieved March 14, 2019.^ Minnesota Event Report: EF1 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office Twin Cities, Minnesota. 2018. Retrieved March 14, 2019.^ Minnesota Event Report: EF1 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office Twin Cities, Minnesota. 2018. Retrieved March 14, 2019.^ Minnesota Event Report: EF1 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office Twin Cities, Minnesota. 2018. Retrieved March 14, 2019.^ Minnesota Event Report: EF0 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office Twin Cities, Minnesota. 2018. Retrieved March 14, 2019.^ Minnesota Event Report: EF1 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office Twin Cities, Minnesota. 2018. Retrieved March 14, 2019.^ Minnesota Event Report: EF1 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office Twin Cities, Minnesota. 2018. Retrieved March 14, 2019.^ Minnesota Event Report: EF0 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office Twin Cities, Minnesota. 2018. Retrieved March 14, 2019.^ Minnesota Event Report: EF1 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office Twin Cities, Minnesota. 2018. Retrieved March 14, 2019.^ Minnesota Event Report: EF0 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office Twin Cities, Minnesota. 2018. Retrieved March 14, 2019.^ Minnesota Event Report: EF0 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office Twin Cities, Minnesota. 2018. Retrieved March 14, 2019.^ Minnesota Event Report: EF0 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office Twin Cities, Minnesota. 2018. Retrieved March 14, 2019.^ Minnesota Event Report: EF0 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office Twin Cities, Minnesota. 2018. Retrieved March 14, 2019.^ Minnesota Event Report: EF0 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office Twin Cities, Minnesota. 2018. Retrieved March 14, 2019.^ Minnesota Event Report: EF0 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office Twin Cities, Minnesota. 2018. Retrieved March 14, 2019.^ Minnesota Event Report: EF0 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office Twin Cities, Minnesota. 2018. Retrieved March 14, 2019.^ Wisconsin Event Report: EF0 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office Twin Cities, Minnesota. 2018. Retrieved March 14, 2019.^ Wisconsin Event Report: EF0 Tornado (Report). National Centers for Environmental Information. National Weather Service Weather Forecast Office Twin Cities, Minnesota. 2018. Retrieved March 14, 2019.^ a b c d e f g “7 Tornado Outbreak in Eastern Ontario\/Southern Quebec”.^ “In Arlington Woods, tornado cleanup begins amid ‘ripped apart’ buildings – CBC News”.^ “Egan: Crushed by tornado’s fury, Renfrew man may never walk normally again”. 5 November 2018.^ “Egan: Overlooked in Calabogie \u2014 the F1 tornado that escaped limelight”. 25 September 2018.^ “Environment Canada confirms 3rd tornado hit Calabogie, White Lake”. 25 September 2018.^ “Environment Canada Investigates Possible Tornado in Sharbot Lake”. iHeartRadio.^ a b c “6 tornadoes hit Ottawa-Gatineau region, Environment Canada says”. CBC News. 25 September 2018.^ “Here’s where power is out across the region – CBC News”.^ Kalvapalle, Rahul. “Ottawa residents could be without power for days after tornado devastates Hydro One station”. Global News. Retrieved 2018-09-22.^ Chianello, Joanne. “When is the power coming on? Not for days”. CBC News. Retrieved 22 September 2018.^ Third tornado at Calabogie and White Lake is confirmed by Environment Canada, Ottawa Citizen, September 24, 2018^ Environment Canada confirms 3rd tornado hit Calabogie, White Lake, insideottawavalley.com\/Renfrew Mercury, September 25, 2018^ The Destructive Dunrobin – Gatineau Tornado. Includes images and videos of the tornadoes and damage^ Dunrobin Plaza demolition underway, CTV Ottawa, December 6, 2018^ Demolition begins at Dunrobin Plaza, but future still unclear, CBC Ottawa, December 9, 2018^ Tornado damage costs insurers $295M, Ottawa Citizen, October 23, 2018^ Ottawa-Gatineau tornadoes cause nearly $300 million in insured damage, insurancebusinessmag.com, October 23, 2018^ Were the Ottawa-Gatineau tornadoes the costliest in Canadian history?, canadianunderwriter.ca, October 17, 2018^ Cellphone video of Ottawa-Gatineau tornado, CBC News, September 2018^ COMPILATION: Must-see moments of Dunrobin, Gatineau tornadoes touching down, The Weather Network\/YouTube, 2018^ Dunrobin tornado strongest to hit eastern Ontario since 1902, 580 CFRA, October 5, 2018^ Ottawa newsmakers 2018: Sept. 21 tornadoes left us battered, the biggest blow since 1903, Ottawa Citizen, Originally published December 27, 2018; Updated January 1, 2019^ “Man killed by falling tree during Ontario storm that spawned six tornadoes”. CTVNews. September 26, 2018.^ a b “Inside Hydro One’s tricky problem: How to turn on the lights with a major power station down”. Ottawa Citizen. 2018-09-24. Retrieved 2018-11-15.^ “Tornado aftermath: ‘The roof fell on us’ \u2014 Twisters leave residents awestruck and in the dark”. Ottawa Citizen. 2018-09-23. Retrieved 2018-11-15.^ Limited, Hydro Ottawa. “About Us – Governance – Overview – Hydro Ottawa”. hydroottawa.com. Retrieved 2018-11-15.^ Limited, Hydro Ottawa. “Media – News Releases – Hydro Ottawa”. hydroottawa.com. Retrieved 2018-11-15.^ Ottawa airport forced to use backup power as storm sweeps through region, Global News, September 21,2018^ Clean-up begins after storm hits Ottawa-Gatineau, CTV Ottawa\/CTV Morning Live, September 22, 2018June 28, 1865April 18, 1880June 12, 1899November 11, 1911Palm Sunday 1920June 19, 1951September 26, 1951June 23, 1952May 10, 1953April 3, 1956May 25, 1957June 4, 1958Palm Sunday 1965May 5, 7\u20138, 1965June 4, 1966January 24, 1967April 4, 1981June 7, 1984August 9, 1993July 18, 1996March 29, 1998May 30, 1998August 23, 1998May 5, 1999June 18, 2001May 10, 2003May 23, 2004August 18, 2005March 31, 2007January 8, 2008May 25, 2008June 7, 2008June 17, 2010October 26, 2010April 9, 2011May 22, 2011June 19, 21, 2011October 5, 2013June 16\u201318, 2014May 16, 2017September 20, 2018August 10, 2020July 28\u201329, 2021March 5, 2022March 31, 2023"},{"@context":"http:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"https:\/\/wiki.edu.vn\/en\/wiki40\/#breadcrumbitem","name":"Enzyklop\u00e4die"}},{"@type":"ListItem","position":2,"item":{"@id":"https:\/\/wiki.edu.vn\/en\/wiki40\/2018-united-states-canada-tornado-outbreak\/#breadcrumbitem","name":"2018 United States\u2013Canada tornado outbreak"}}]}]