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2011 Chickasha–Blanchard tornado

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River. More trees were uprooted on E1365 Rd, along with a metal fence at EF1 strength. The tornado intensified to low-end EF2 after crossing I-62, where another barn was demolished and multiple trees were uprooted. The tornado continued to travel to the northeast before explosively intensifying to low-end EF4 strength; a well-constructed home on E1350 Rd has swept away at an estimated wind speed of 170 mph (274 km/h), a home right across the road was leveled and ground scouring was noted in this location, the garage of the home was blown down, and three cars were tossed 300 to 750 ft away northeast, a mobile home was completely obliterated around here, other homes near the vicinity lost their exterior walls, and two metal building was completely demolished. The tornado weakened to low-end EF3 intensity, multiple hardwood trees were debarked and lost their branches, and two framed homes on Maple Rd lost their roofs, a couple of mobile homes were destroyed, a barn was leveled further north. The tornado crossed Miller Rd where it re-intensified to low-end EF4 intensity, a well-constructed home was almost leveled, leaving a few interior walls standing, two other framed homes nearby had its roof ripped away, and a mobile home was separated from its unit and was rolled off, badly damaging it, crops, mud, and straw were scoured and was piled up against a fence up to 6ft high and a car was tossed at an unknown distance. A home on Smith Rd lost its exterior walls, and a masonry home further north sustained substantial roof damage. Some trees were uprooted, and power lines leaned over.
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to high-end EF2 strength with wind speeds of 135 mph (217 km/h), a manufactured home along Parkway Dr was demolished, and debris was blown away. A 24-year-old woman was killed in this area as their mobile home was rolled and destroyed. The tornado weakened to mid-range EF2 intensity, a car wash and repair shop on W Country Club Rd had their roof ripped away at 120 mph, a gas station nearby had piece of their roof ripped off, trees were also uprooted and an outbuilding was damaged. The tornado weakened to high-end EF1 strength, uprooting multiple trees and damaging an apartment complex along Glenwood Dr. The tornado crossed E Almar Dr where it re-intensified to mid-range EF2, a roof of an apartment complex was torn off and suffered partial wall collapse, a car was flipped and damaged, around the same time, the funnel of the tornado fully condensed to the ground. A
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damaged or demolished. The tornado continued northeast, causing severe tree damage and scouring away topsoil mostly at EF3 intensity with a pocket of EF4 level damage along the path, leveling a home. The tornado briefly weakened to EF1 intensity before strengthening to EF3, debarking multiple trees, obliterating manufactured homes, and scouring inches of soil. The tornado rapidly intensified to near EF5 strength as some well-built homes north of Blanchard were swept away, a concrete dome received severe damage numerous trees were blown down and debarked and vehicles were destroyed, another home was leveled as the tornado continued moving northeast. The tornado weakened, causing significant damage to homes and demolishing outbuildings around Newcastle before dissipating north of the
216: 365:, the tornado re-strengthened to low-end EF3 intensity, crossing NW 25th St, trees were debarked, and an entire home was shifted off its foundation, and a mobile home was completely demolished, a two-story home had their second floor lost their exterior walls and an outbuilding was demolished. The tornado crossed County Street 2980, slightly intensifying to mid-range EF3 strength as a double-wide mobile home was obliterated, and ground scouring was noted to happen again, a farmstead along the road suffered major damage as it was almost leveled, leaving a few interior walls standing, a pickup truck was thrown 200 yards (183 m) away and was destroyed as it was stripped down to its 354:
ground was scoured away vehicles were thrown 300 yards away and mangled and trees were debarked. The tornado maintained EF3 intensity as it crossed County Street 2920; numerous trees around East Bitter Creek were debarked, the ground was completely scoured away down to the dirt, and an outbuilding was leveled near the edge of the path. The tornado weakened to EF1 strength and shrunk in size as it crossed E1300 Rd, snapping and uprooting trees and ripping a roof off an outbuilding. Homes sustained minor roof damage. Despite being far from the tornado, a single-wide manufactured home along E1295 Rd sustained severe damage, likely caused by
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the foundation weren't affected, leaving the home to get a rating of 180 mph (290 km/h). On Meadow Lark Ln, another well-built home was leveled and partially swept away and was another EF5 candidate; trees nearby were shredded down to their stubs, several inches of soil around the home was scoured and vehicles were tossed 300-600 yards away (274-549 m), but the home was given a rating of 190 mph (310 km/h) due to some of the anchor bolts missing nuts and some of the sill plates were attached with cut nails and the remaining sill plates had straight nail studs left, preventing a higher rating.
405:, leveling a home at low-end EF4 intensity; homes nearby were mostly destroyed, leaving a few interior walls standing. The tornado substantially weakened to high-end EF2, destroying a barn and tearing away many roofs off of homes along W Golf Course Rd, a home on S Ross Dr lost its exterior walls, and a power pole on S Rockwell Rd was snapped. The tornado weakened to an EF1, ripping a roof off a mobile home on Timber Ridge Dr and leveling an outbuilding. Multiple softwood and hardwood trees were snapped or uprooted along SW 16th St and Quail Run Rd. The tornado passed west of downtown 409:, re-intensifying to mid-range EF2 strength as the Senior Living Apartments on W Fox Ln sustained significant roof damage, and more trees were snapped on this road. A subdivision took a direct hit from the tornado at 122 mph (196 km/h), many homes sustained severe roof damage, and many outbuildings were destroyed. Some metal buildings along N Merdian Ave received minor damage to their roof and walls. The tornado weakened to EF0, causing minimal roof damage to a home on NE 23rd St; the tornado continued to cause moderate damage, snapping trees and power poles before crossing the 43: 430: 346: 438:
severely debarked and the ground was scoured and went as deep as 2-4", some part of the pavement were gouged out by flying debris. A well-built brick veneer home on Kitty Hawk Rd was swept away, but it was possibly EF5 level damage as it had anchor bolted sill plates, and some of them remained intact, and the south side of the home was mud blasted, but due to the fact some of the anchor bolts were missing their washers, the damage here was rated 185 mph (298 km/).
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tornado rapidly strengthened to high-end EF4 intensity; the tornado crossed Maple Ridge Rd, where a thin shell concrete dome was damaged, and since the home was reinforced with steel fibers rather than the common horizontal and vertical rebar, the dome was severely cracked by flying debris, all the windows were blown out, and the doors caved in, two vehicles were destroyed, and trees nearby were debarked, 10"x30" of Asphalt was ripped away.
32: 382: 298:, to remain in effect until 10:00 p.m., for most of central Oklahoma extending from the state border with Kansas down through the Oklahoma City metropolitan area and into northern Texas. The text of the tornado watch again warned of the possible development of "destructive tornadoes... ...some of which could be long-tracked and strong to violent." 227:(an elongated region of low atmospheric pressure aloft) advanced towards the Great Plains out of the southwestern United States and took on a negative tilt, becoming oriented northwest to southeast.At the same time, southerly flow brought moisture north over Texas and the southern Great Plains, allowing 437:
The tornado crossed Kitty Hawk Rd, where it rapidly strengthened to extremely high-end EF4 intensity with estimated wind speeds of nearly 200 mph, and the most violent damage from the tornado occurred around here. 10'x100' of asphalt was stripped off by the tornado, numerous trees were blown down and
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The tornado maintained EF4 strength as it crossed Ballard Rd. A brick home along this road was leveled at wind speeds of 170 mph (274 km/h), the brick chimney of the home was crumpled, and trees were debarked and uprooted. The tornado weakened to EF3 intensity, a stone home had its roof torn off, the
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Another home on the intersection of Kitty Hawk Rd and Meadow Lark Ln has been swept away and also possibly had EF5 level damage; it was anchored with a mix of anchored with anchor bolts and cut nails, and the sill plates that remained on the foundation had straight nail studs, and some furnitures on
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After the tornado, the Grady County Sheriff requested assistance from Stephen Sheriff County and five other deputies to come to Chickasha to help in aid. In Grady County, 261 structures were impacted by the tornado, 72 homes and businesses were destroyed by the tornado, 46 other structures received
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The tornado left the neighborhoods, passing by a mesonet station to the south and east; the station recorded a gust of 53 mph (85 km/h) and a pressure drop. The tornado crossed D2855 Rd, weakening to low-end EF2 intensity, destroying a barn and uprooting multiple trees before it crossed the Washita
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where large branches and television aerials were ripped away. The tornado strengthened to EF1 intensity as it crossed Sleepy Hollow Blvd, some large trees were uprooted and minimal roof damage was noted, multiple trees were uprooted, and one of them fell onto a home. The tornado rapidly intensified
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The tornado touched down south of Chickasha at 5:06 pm. CDT, quickly strengthening to EF2 intensity, destroying mobile homes and doing severe roof damage to apartments and other buildings. After leaving the city, the tornado destroyed a home at EF4 strength. Trees were debarked, and cars were
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The tornado entered McClain County and first crossed into a neighborhood north of Blanchard, where it intensified to mid-range EF3 strength, destroying a home and leaving a few interior walls standing and ripping roofs off of homes along N County Line Ave, as well as destroying a mobile home. The
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for the day highlighted the tornado risk, which included central Oklahoma inside a large region with a 45% chance of a tornado touchdown within 25 miles (40 km) of any given point, and a 10% or greater chance of a significant (EF2+) tornado within that same 25 miles (40 km) radius.
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suffered severe damage as some of the exterior walls collapsed. Still, due to the contextual damage not matching up with the structural damage of the building, it only retained mid-range EF2 intensity, the dollar tree was later reopened in 2012.
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in the late afternoon of May 24, 2011. The tornado killed one person and injured 48 others as the tornado traveled a path length of 33.3 miles (53.6 km) with a peak path width of 880 yards (0.5 miles). This powerful tornado was part of the
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At 5:06 p.m., an uncondensed tornado touched down on Fieldcrest Dr in a neighborhood south of Chickasha at EF0 strength, taking tree limbs off and blowing down fences; some homes sustained minor roof damage. The tornado crossed
369:, other vehicles were thrown and mangled. The tornado weakened to high-end EF2 intensity, snapping and uprooting multiple trees and destroying the exterior walls of a home on County Road 2984 before entering 282:. The Storm Prediction Center's outlooks for severe weather culminated in a "high risk" area being delineated over the Great Plains for May 24. Issued at 11:25 a.m. CDT, the Storm Prediction Center's 275: 984: 1066: 1081: 713: 1149: 460: 192: 157: 1026: 763: 613: 465: 215: 231:
in Central Oklahoma to reach 18–21 °C (64–70 °F). This moisture, with temperatures in the mid 80 °F (27 °C) range, allowed for ample
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and was one of the strongest tornadoes in the sequence and was tied for the second strongest tornado of the May 24 outbreak, behind the
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Well-constructed home north of Blanchard on Kitty Hawk Road partially swept away at 190 mph (310 km/h) being possible EF5 damage.
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The wedge tornado that was taken by Marco Kaschuba, Radar Imagery of Chickasha tornado (north) and the Goldsby tornado (south)
1236: 934: 836: 585:. 92nd American Meteorological Society Annual Meeting, Special Symposium on the Tornado Disasters of 2011. Archived from 506: 417:, the tornado caused minor damage to a warehouse and an outbuilding along on SW 149th St before dissipating southwest of 609: 266:
of all these factors promised the development of intense convective thunderstorms. This risk was anticipated by the
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into western Oklahoma, where it met the already-present moisture. The shortwave's advance also brought strong
1127: 1111: 271: 259: 243: 236: 1085: 812:"EF4 Grady County: Storm Events Database - Event Details | National Centers for Environmental Information" 1231: 1190: 321: 107: 885:"EF0 Cleveland: Storm Events Database - Event Details | National Centers for Environmental Information" 42: 429: 345: 355: 224: 219:
Storm Prediction Center issuing a high-risk for northern Texas, most of Oklahoma, and southern Kansas
1153: 1091: 884: 860: 811: 406: 362: 187: 183: 179: 147: 586: 283: 333: 311: 1205: 1200: 1195: 1061: 1056: 1051: 1035: 558: 475: 373:; the tornado killed one person and injured 48 people although the total damages are unknown. 161: 1226: 548: 279: 263: 579:
Ortega, Kiel L.; Bluestein, Howard B.; Burgess, Donald W.; et al. (January 25, 2012).
636: 418: 909: 861:"Storm Events Database - Event Details | National Centers for Environmental Information" 410: 204: 689: 31: 1220: 295: 537:"Impacts of a Storm Merger on the 24 May 2011 El Reno, Oklahoma, Tornadic Supercell" 239:); values reached 2500–4000 J/kg. Mid-level lapse rates were nearly dry adiabatic. 835:
Survivability, Freda Parker • Published • Monolithic Dome Benefits (2011-07-05).
381: 326: 247: 498: 255: 643:(Report). Norman, Oklahoma: National Oceanic and Atmospheric Administration. 562: 553: 536: 1004: 228: 535:
Tanamachi, Robin L.; Heinselman, Pamela L.; Wicker, Louis J. (2015-06-01).
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Storm Prediction Center May 24, 2011 1630 UTC Day 1 Convective Outlook
714:"Oklahoma tornadoes: Woman killed in Chickasha lived a vibrant life" 612:(Report). Norman, Oklahoma: NOAA/NWS Storm Prediction Center (SPC). 380: 332: 214: 1008: 451:
major damage and 143 structures only sustained minor damage.
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Reinforced concrete dome home sustaining significant damage
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Banner, Kevin Kerr and AP ReportsThe Duncan (2011-05-25).
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Banner, Kevin Kerr and AP ReportsThe Duncan (2011-05-25).
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Express-Star, Debi DeSilver Special to the (2021-05-19).
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At 12:50 p.m., the Storm Prediction Center issued a
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Particularly Dangerous Situation (PDS) Tornado Watch 356
985:"Remembering the May 24, 2011 tornado in Grady County" 337:
Well-built home near Chickasha completely swept away
143: 135: 127: 122: 114: 99: 91: 83: 75: 67: 60: 764:"Game Stop, other businesses to open in Chickasha" 315:A mobile home that got destroyed at EF2 intensity 910:"The May 24, 2011, Tornado Outbreak in Oklahoma" 608:Hart, John A.; Grams, Jeremy S. (May 24, 2011). 499:"The May 24, 2011, Tornado Outbreak in Oklahoma" 16:Powerful EF4 tornado in central Oklahoma in 2011 1020: 788:"Re: Mesonet station hit by tornado - update" 762:Express-Star, LAUREN CARTERThe (2012-09-21). 8: 597:– via American Meteorological Society. 582:Overview of the May 24 2011 Tornado Outbreak 461:Tornado outbreak sequence of May 21–26, 2011 193:Tornado outbreak sequence of May 21–26, 2011 158:Tornado outbreak sequence of May 21–26, 2011 19: 935:"Discriminating EF4 and EF5 tornado damage" 349:Low-end EF4 damage to a home near Chickasha 87:May 24, 2011, 6:02 pm. CDT (UTC−05:00) 79:May 24, 2011, 5:06 pm. CDT (UTC−05:00) 1027: 1013: 1005: 397:Significant roof damage north of Newcastle 250:trough advanced more rapidly, pushing the 18: 552: 466:List of F4 and EF4 tornadoes (2010–2019) 428: 392: 344: 310: 487: 647:from the original on September 3, 2014 509:from the original on December 11, 2022 223:Early on May 24, a strong upper-level 174:was a large and extremely violent EF4 684: 682: 616:from the original on January 10, 2019 258:and "incredibly high" storm-relative 233:convective available potential energy 7: 680: 678: 676: 674: 672: 670: 668: 666: 664: 662: 574: 572: 530: 528: 526: 524: 493: 491: 1047:December 30, 2010 – January 1, 2011 178:that impacted the southern side of 471:List of F5, EF5, and IF5 tornadoes 14: 908:US Department of Commerce, NOAA. 960:"Chickasha hit by large tornado" 739:"Chickasha hit by large tornado" 403:H.E. Bailey Turnpike Norman Spur 292:Particularly Dangerous Situation 262:values of more than 500 ms. The 172:2011 Chickasha-Blanchard tornado 41: 30: 20:2011 Chickasha–Blanchard tornado 837:"A Testament to the Dome Shape" 635:Mead, Corey M. (May 24, 2011). 1: 1191:August 21 (Goderich, Ontario) 1104:Hackleburg–Phil Campbell, AL 1092:April 25–28 (Super Outbreak) 118:200 mph (320 km/h) 1258: 1120:Tuscaloosa–Birmingham, AL 1042: 1036:Tornado outbreaks of 2011 246:embedded within the main 211:Meteorological background 153: 104: 24: 690:"ArcGIS Web Application" 554:10.1175/WAF-D-14-00164.1 503:National Weather Service 268:National Weather Service 197:El Reno–Piedmont tornado 641:Storm Prediction Center 541:Weather and Forecasting 272:Storm Prediction Center 242:In the late morning, a 237:atmospheric instability 235:(or CAPE, a measure of 182:and rural areas around 989:Chickasha Express Star 768:Chickasha Express Star 434: 398: 386: 350: 338: 316: 220: 62:Meteorological history 1237:Tornadoes in Oklahoma 432: 396: 384: 348: 336: 322:H. E. Bailey Turnpike 314: 274:(SPC), and its local 218: 108:Enhanced Fujita scale 1162:El Reno–Piedmont, OK 792:www.atmos.albany.edu 401:The tornado crossed 356:rear flank downdraft 589:on February 7, 2023 425:Possible EF5 Damage 188:Newcastle, Oklahoma 180:Chickasha, Oklahoma 21: 435: 399: 387: 351: 339: 317: 284:convective outlook 221: 115:Highest winds 1242:Tornadoes of 2011 1214: 1213: 889:www.ncdc.noaa.gov 865:www.ncdc.noaa.gov 816:www.ncdc.noaa.gov 694:apps.dat.noaa.gov 476:Tornadoes of 2011 168: 167: 162:tornadoes of 2011 1249: 1096:Philadelphia, MS 1029: 1022: 1015: 1006: 999: 998: 996: 995: 980: 974: 973: 971: 970: 955: 949: 948: 946: 945: 930: 924: 923: 921: 920: 905: 899: 898: 896: 895: 881: 875: 874: 872: 871: 857: 851: 850: 848: 847: 832: 826: 825: 823: 822: 808: 802: 801: 799: 798: 784: 778: 777: 775: 774: 759: 753: 752: 750: 749: 734: 728: 727: 725: 724: 710: 704: 703: 701: 700: 686: 657: 656: 654: 652: 632: 626: 625: 623: 621: 605: 599: 598: 596: 594: 576: 567: 566: 556: 532: 519: 518: 516: 514: 495: 415:Cleveland County 361:Passing west of 280:Norman, Oklahoma 63: 45: 34: 22: 1257: 1256: 1252: 1251: 1250: 1248: 1247: 1246: 1217: 1216: 1215: 1210: 1144:Lake Martin, AL 1038: 1033: 1003: 1002: 993: 991: 982: 981: 977: 968: 966: 957: 956: 952: 943: 941: 932: 931: 927: 918: 916: 914:www.weather.gov 907: 906: 902: 893: 891: 883: 882: 878: 869: 867: 859: 858: 854: 845: 843: 834: 833: 829: 820: 818: 810: 809: 805: 796: 794: 786: 785: 781: 772: 770: 761: 760: 756: 747: 745: 736: 735: 731: 722: 720: 712: 711: 707: 698: 696: 688: 687: 660: 650: 648: 634: 633: 629: 619: 617: 607: 606: 602: 592: 590: 578: 577: 570: 534: 533: 522: 512: 510: 497: 496: 489: 484: 457: 448: 427: 379: 309: 304: 276:forecast office 213: 154: 123:Overall effects 61: 56: 50: 49: 48: 47: 46: 37: 36: 35: 17: 12: 11: 5: 1255: 1253: 1245: 1244: 1239: 1234: 1229: 1219: 1218: 1212: 1211: 1209: 1208: 1206:November 14–16 1203: 1198: 1193: 1188: 1183: 1178: 1173: 1147: 1128:Rainsville, AL 1112:Smithville, MS 1089: 1079: 1074: 1069: 1064: 1059: 1054: 1052:February 27–28 1049: 1043: 1040: 1039: 1034: 1032: 1031: 1024: 1017: 1009: 1001: 1000: 975: 950: 925: 900: 876: 852: 841:Monolithic.org 827: 803: 779: 754: 729: 705: 658: 627: 600: 568: 547:(3): 501–524. 520: 486: 485: 483: 480: 479: 478: 473: 468: 463: 456: 453: 447: 444: 426: 423: 411:Canadian River 378: 377:McClain County 375: 371:McClain County 308: 305: 303: 300: 212: 209: 205:Canadian River 166: 165: 151: 150: 145: 144:Areas affected 141: 140: 137: 133: 132: 129: 125: 124: 120: 119: 116: 112: 111: 102: 101: 97: 96: 93: 89: 88: 85: 81: 80: 77: 73: 72: 69: 65: 64: 58: 57: 53:Top to Bottom: 51: 40: 39: 38: 29: 28: 27: 26: 25: 15: 13: 10: 9: 6: 4: 3: 2: 1254: 1243: 1240: 1238: 1235: 1233: 1230: 1228: 1225: 1224: 1222: 1207: 1204: 1202: 1199: 1197: 1196:September 3–7 1194: 1192: 1189: 1187: 1184: 1182: 1179: 1177: 1174: 1171: 1170:Chickasha, OK 1167: 1163: 1159: 1155: 1151: 1148: 1145: 1141: 1137: 1133: 1129: 1125: 1121: 1117: 1113: 1109: 1105: 1101: 1097: 1093: 1090: 1087: 1083: 1080: 1078: 1075: 1073: 1070: 1068: 1065: 1063: 1060: 1058: 1055: 1053: 1050: 1048: 1045: 1044: 1041: 1037: 1030: 1025: 1023: 1018: 1016: 1011: 1010: 1007: 990: 986: 979: 976: 965: 964:Duncan Banner 961: 954: 951: 940: 936: 929: 926: 915: 911: 904: 901: 890: 886: 880: 877: 866: 862: 856: 853: 842: 838: 831: 828: 817: 813: 807: 804: 793: 789: 783: 780: 769: 765: 758: 755: 744: 743:Duncan Banner 740: 733: 730: 719: 718:The Oklahoman 715: 709: 706: 695: 691: 685: 683: 681: 679: 677: 675: 673: 671: 669: 667: 665: 663: 659: 646: 642: 638: 631: 628: 615: 611: 604: 601: 588: 584: 583: 575: 573: 569: 564: 560: 555: 550: 546: 542: 538: 531: 529: 527: 525: 521: 508: 504: 500: 494: 492: 488: 481: 477: 474: 472: 469: 467: 464: 462: 459: 458: 454: 452: 445: 443: 439: 431: 424: 422: 420: 416: 412: 408: 404: 395: 391: 383: 376: 374: 372: 368: 364: 359: 357: 347: 343: 335: 331: 328: 323: 313: 306: 302:Tornado track 301: 299: 297: 296:tornado watch 293: 288: 285: 281: 277: 273: 269: 265: 261: 257: 253: 249: 245: 240: 238: 234: 230: 226: 217: 210: 208: 206: 200: 198: 194: 189: 185: 181: 177: 173: 164: 163: 159: 152: 149: 146: 142: 138: 134: 130: 126: 121: 117: 113: 110: 109: 103: 98: 94: 90: 86: 82: 78: 74: 70: 66: 59: 54: 44: 33: 23: 1232:F4 tornadoes 1201:November 7–8 1169: 1165: 1157: 1139: 1136:Ohatchee, AL 1131: 1123: 1115: 1107: 1099: 992:. 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Retrieved 502: 449: 440: 436: 400: 388: 360: 352: 340: 318: 307:Grady County 289: 241: 222: 201: 171: 169: 156: 155:Part of the 105: 71:May 24, 2011 52: 1082:April 19–24 1077:April 14–16 1062:March 21–23 933:Yumpu.com. 513:February 9, 327:Dollar Tree 264:convergence 100:EF4 tornado 1221:Categories 1181:June 18–22 1154:Joplin, MO 1072:April 9–11 994:2024-08-21 969:2024-08-19 944:2024-08-19 919:2024-08-12 894:2024-08-13 870:2024-08-13 846:2024-08-12 821:2024-08-12 797:2024-08-19 773:2024-08-12 748:2024-08-12 723:2024-08-12 699:2024-08-12 482:References 256:wind shear 229:dew points 128:Fatalities 95:56 minutes 84:Dissipated 1150:May 21–26 1086:St. Louis 1067:April 4–5 1057:March 8–9 939:yumpu.com 563:1520-0434 446:Aftermath 407:Newcastle 363:Blanchard 244:shortwave 184:Blanchard 148:Chickasha 645:Archived 614:Archived 507:Archived 505:. NOAA. 455:See also 260:helicity 248:longwave 136:Injuries 92:Duration 1227:Tornado 1186:July 11 651:May 24, 367:chassis 358:winds. 252:dryline 176:tornado 106:on the 1176:June 1 1168: 1166:· 1164:  1160: 1158:· 1156:  1142: 1140:· 1138:  1134: 1132:· 1130:  1126: 1124:· 1122:  1118: 1116:· 1114:  1110: 1108:· 1106:  1102: 1100:· 1098:  561:  294:(PDS) 225:trough 76:Formed 419:Moore 413:into 653:2011 622:2023 595:2023 559:ISSN 515:2022 186:and 170:The 160:and 68:Date 549:doi 278:in 270:'s 1223:: 987:. 962:. 937:. 912:. 887:. 863:. 839:. 814:. 790:. 766:. 741:. 716:. 692:. 661:^ 639:. 571:^ 557:. 545:30 543:. 539:. 523:^ 501:. 490:^ 207:. 199:. 139:48 1172:) 1152:( 1146:) 1094:( 1088:) 1084:( 1028:e 1021:t 1014:v 997:. 972:. 947:. 922:. 897:. 873:. 849:. 824:. 800:. 776:. 751:. 726:. 702:. 655:. 624:. 565:. 551:: 517:. 131:1

Index



Enhanced Fujita scale
Chickasha
Tornado outbreak sequence of May 21–26, 2011
tornadoes of 2011
tornado
Chickasha, Oklahoma
Blanchard
Newcastle, Oklahoma
Tornado outbreak sequence of May 21–26, 2011
El Reno–Piedmont tornado
Canadian River

trough
dew points
convective available potential energy
atmospheric instability
shortwave
longwave
dryline
wind shear
helicity
convergence
National Weather Service
Storm Prediction Center
forecast office
Norman, Oklahoma
convective outlook
Particularly Dangerous Situation

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