Knowledge

Enhanced Fujita scale

Source đź“ť

500: 434: 499: 467: 405: 126: 347: 376: 491:
extremely far through the air. Large, steel-reinforced structures such as schools are completely leveled. Low-lying grass and vegetation are shredded from the ground. Trees are completely debarked and snapped. Very little recognizable structural debris is generated with most materials reduced to a coarse mix of small, granular particles and dispersed. Large, multiple-ton steel frame vehicles and farm equipment are often mangled beyond recognition and tossed miles away or reduced entirely to unrecognizable parts. Tall buildings collapse or have severe structural deformations. The official description of this damage highlights the extreme nature of the destruction, noting that "incredible phenomena will occur". (Most recent example:
1136: 858:", are used along with Degrees of Damage (DoD) to determine wind estimates. Different structures, depending on their building materials and ability to survive high winds, have their own DIs and DoDs. Damage descriptors and wind speeds will also be readily updated as new information is learned. Some differences do exist between the two scales in the ratings assigned to damage. An EF5 rating on the new scale requires a higher standard of construction in houses than does an F5 rating on the old scale. So, the complete destruction and sweeping away of a typical American frame home, which would likely be rated F5 on the Fujita scale, would be rated EF4 or lower on the Enhanced Fujita scale. 466: 193:. Operational use began in the United States on February 1, 2007, followed by Canada on April 1, 2013, who uses a modified version known as the CEF-scale. It has also been in use in France since 2008, albeit modified slightly by using damage indicators that take into account French construction standards, native vegetation, and the use of metric units. Similarly, the Japanese implementation of the scale is also modified along similar lines; the Japanese variant is referred to locally in Japan as the JEF or Japanese Enhanced Fujita Scale. The scale is also used unofficially in other countries, such as China. 433: 1122: 404: 989: 1026: 948: 846:
respective degrees of damage. The old scale lists an F5 tornado as wind speeds of 261–318 mph (420–512 km/h), while the new scale lists an EF5 as a tornado with winds above 200 mph (322 km/h), found to be sufficient to cause the damage previously ascribed to the F5 range of wind speeds. None of the tornadoes in the United States recorded before February 1, 2007, will be re-categorized.
346: 375: 266:
The seven categories for the EF scale are listed below, in order of increasing intensity. Although the wind speeds and photographic damage examples have been updated, the damage descriptions given are based on those from the Fujita scale, which are more or less still accurate. However, for the actual
849:
Essentially, there is no functional difference in how tornadoes are rated. The old ratings and new ratings are smoothly connected with a linear formula. The only differences are adjusted wind speeds, measurements of which were not used in previous ratings, and refined damage descriptions; this is to
490:
Incredible damage Well-built and well-anchored homes are taken off their foundations and they go into the air before obliteration. The wreckage of those homes is flung for miles and those foundations are swept completely clean. Cars, buses, trains, and airplanes can be rolled repeatedly or be thrown
428:
Severe damage A few parts of affected buildings are left standing. Well-built structures lose all outer and some inner walls. Unanchored homes are swept away, and homes with poor anchoring may collapse entirely. Trains and train cars are all overturned. Small vehicles and similarly sized objects are
513:
The EF scale currently has 28 damage indicators (DI), or types of structures and vegetation, each with a varying number of degrees of damage (DoD). Each structure has a maximum DoD value, which is given by total destruction. Lesser damage to a structure will yield lower DoD values. The links in the
457:
Devastating damage Well-built homes are reduced to a short pile of medium-sized debris on the foundation. Homes with poor or no anchoring are swept completely away. Large, heavy vehicles, including airplanes, trains, and large trucks, can be pushed over, flipped repeatedly, or picked up and thrown.
399:
Considerable damage Well-built structures can suffer serious damage, including roof loss, and the collapse of some exterior walls may occur in poorly built structures. Mobile homes, however, are destroyed. Vehicles can be lifted off the ground, and lighter objects can become small missiles, causing
861:
Since the new system still uses actual tornado damage and similar degrees of damage for each category to estimate the storm's wind speed, the National Weather Service states that the new scale will likely not lead to an increase in the number of tornadoes classified as EF5. Additionally, the upper
316:
No surveyable damage.Intensity cannot be determined due to a lack of information. This rating applies to tornadoes that traverse areas with no damage indicators, cause damage in an area that cannot be accessed by a survey, or cause damage that cannot be differentiated from that of another tornado.
164:
As with the Fujita scale, the Enhanced Fujita scale remains a damage scale and only a proxy for actual wind speeds. While the wind speeds associated with the damage listed have not undergone empirical analysis (such as detailed physical or any numerical modeling) owing to excessive cost, the wind
1425:
Next, four damage-based wind speed rating methods for tornados are introduced: the Fujita-Scale (F-Scale); the Enhanced Fujita-Scale (EF-Scale); the Canadian Enhanced Fujita-Scale (CEF-Scale); and the Japanese Enhanced Fujita-Scale (JEF-Scale)...The CEF-Scale was proposed in 2013 by Environment
845:
The new scale takes into account the quality of construction and standardizes different kinds of structures. The wind speeds on the original scale were deemed by meteorologists and engineers as being too high, and engineering studies indicated that slower winds than initially estimated cause the
1438:
Pieter Groenemeijer (ESSL); Lothar Bock (DWD); Juan de Dios Soriano (AEMet); Maciej Dutkiewicz (Bydgoszcz University of Science and Technology); Delia Gutiérrez-Rubio (AEMet); Alois M. Holzer (ESSL); Martin Hubrig; Rainer Kaltenberger; Thilo Kühne (ESSL); Mortimer Müller (Universität für
1104:
to determine whether the tornado was "significant". This same classification is also used by the National Weather Service. The National Weather Service of Quad Cities use a modified EF scale wording, which gives a new term for each rating on the scale, going from weak to catastrophic.
341:
Minor damage.Well-built structures are typically unscathed, though sometimes sustaining broken windows, with minor damage to roofs and chimneys. Billboards and large signs can be knocked down. Trees may have large branches broken off and may be uprooted if they have shallow roots.
230:
In November 2022, a research paper was published that revealed a more standardized EF-scale was in the works. This newer scale is expected to combine and create damage indicators, and introduce new methods of estimating windspeeds. Some of these newer methods include
458:
Large, healthy trees are entirely debarked and snapped off close to the ground or uprooted altogether and turned into flying projectiles. Passenger cars and similarly sized objects can be picked up and flung for considerable distances. (Most recent example:
152:
The scale has the same basic design as the original Fujita scale—six intensity categories from zero to five, representing increasing degrees of damage. It was revised to reflect better examinations of tornado damage surveys, in order to align
161:, expands degrees of damage, and better accounts for variables such as differences in construction quality. An "EF-Unknown" (EFU) category was later added for tornadoes that cannot be rated due to a lack of damage evidence. 370:
Moderate damage Damage to mobile homes and other temporary structures becomes significant, and cars and other vehicles may be pushed off the road or flipped. Permanent structures can suffer major damage to their roofs.
247: 1466: 1219: 149:
based on the severity of the damage they cause. It is used in some countries, including the United States and France. The EF scale is also unofficially used in other countries, including China.
1439:
Bodenkultur); Bas van der Ploeg; Tomáš Púčik (ESSL); Thomas Schreiner (ESSL); Miroslav Šinger (SHMI); Gabriel Strommer (ESSL); Andi Xhelaj (University of Genova) (July 30, 2023).
1329:. SMRP (Satellite and Mesometeorology Research Project) Research Paper 91 (Department of the Geophysical Sciences, University of Chicago, Chicago, Illinois, USA) 42 pages. 1437: 157:
more closely with associated storm damage. Better standardizing and elucidating what was previously subjective and ambiguous, it also adds more types of structures and
850:
standardize ratings and to make it easier to rate tornadoes which strike few structures. Twenty-eight Damage Indicators (DI), with descriptions such as "double-wide
1220:
https://www.keraunos.org/recherche/comprendre-les-orages-pedagogie-vulgarisation/tornades-trombes-tubas/intensite-tornade-echelle-fujita-amelioree-ef-f-scale.html
1573:
Marshall, Tim & Brown-Giammanco, Tanya & Krautwurst, Samantha & Toledo, Nicholas. (2022). On the Current Revision of the Enhanced Fujita (EF) Scale.
1694: 1394: 267:
EF scale in practice, damage indicators (the type of structure which has been damaged) are predominantly used in determining the tornado intensity.
2368: 2277: 1605: 2181:. National Severe Storms Laboratory, National Oceanic and Atmospheric Administration, US Department of Commerce. March 29, 2013. Archived from 169:
based on various engineering studies since the 1970s as well as from the field experience of meteorologists and engineers. Unlike the original
223:
The scale was used for the first time in the United States a year after its public announcement when parts of central Florida were struck by
2345: 1733: 1585:"Comparison of Tornado Damage Characteristics to Low-Altitude WSR-88D Radar Observations and Implications for Tornado Intensity Estimation" 429:
lifted off the ground and tossed as projectiles. Wooded areas suffer an almost total loss of vegetation and some tree debarking may occur.
205: 1481: 1167: 1549: 1187: 1162: 1043: 961: 125: 2161: 1502:
Chen, Jiayi; Cai, Xuhui; Wang, Hongyu; Kang, Ling; Zhang, Hongshen; Song, Yu; Zhu, Hao; Zheng, Wei; Li, Fengju (April 2018).
1411: 17: 1365: 1584: 2377: 177:, ratings on the Enhanced Fujita scale are based solely off the effects of 3-second gusts on any given damage indicator. 2373: 1231:
Chen, Jiayi; Cai, Xuhui; Wang, Hongyu; Kang, Ling; Zhang, Hongshen; Song, Yu; Zhu, Hao; Zheng, Wei; Li, Fengju (2018).
1197: 1192: 2143: 1083: 1065: 975: 239: 2304: 400:
damage outside of the tornado's main path. Wooded areas have a large percentage of their trees snapped or uprooted.
1135: 204:
in Atlanta on February 2, 2006. It was developed from 2000 to 2004 by the Fujita Scale Enhancement Project of the
2359: 1613: 514:
right column of the following table describe the degrees of damage for the damage indicators listed in each row.
201: 2408: 1047: 224: 2341: 2178: 2322: 2225: 2364: 1100:
studies, Enhanced Fujita scale ratings may be grouped into classes. Classifications are also used by NOAA's
1001: 2010: 1955: 1944: 1922: 1878: 1177: 2032: 2021: 1999: 1988: 1977: 1933: 1900: 1889: 1867: 1790: 1779: 1768: 1379: 862:
bound of the wind speed range for EF5 is open—in other words, there is no maximum wind speed designated.
2054: 2043: 1966: 1911: 1856: 1845: 1834: 1823: 1801: 1757: 1157: 967: 174: 30:"EF5" redirects here. For the radioisotope-containing organic chemical used in cancer research, see 2355: 2312: 1812: 197: 130: 2296: 1101: 1036: 459: 243: 1440: 2393: 1609: 1596: 1108:
The table shows other variations of the tornado rating classifications based on certain areas.
251: 2349: 1737: 1503: 1274: 1232: 209: 133:’s arrow showing the EF scale. This includes a description word for each level of the scale. 2241: 2098: 1617: 1515: 1244: 238:
In 2024, Anthony W. Lyza, Matthew D. Flournoy, and A. Addison Alford, researchers with the
8: 1724: 1589: 1403: 1097: 2245: 2102: 1621: 1519: 1248: 2259: 2131: 492: 166: 2333: 2327: 2318: 2139: 1531: 1407: 232: 146: 2403: 2263: 2249: 2110: 2106: 1625: 1523: 1339: 1252: 1182: 2282: 2158: 1121: 2308: 2228:; J. G. LaDue; J. T. Ferree; K. Scharfenberg; C. Maier; W. L. Coulbourne (2013). 2165: 1650: 1357: 2204: 1152: 1141: 1127: 217: 2254: 2229: 1326: 2398: 2387: 2224: 1583:
Lyza, Anthony W.; Flournoy, Matthew D.; Alford, A. Addison (March 19, 2024).
1535: 1327:"Proposed characterization of tornadoes and hurricanes by area and intensity" 213: 1629: 186: 170: 2301: 1542: 1172: 851: 2069:
Retrieved from National Weather Service Storm Prediction Center website
1482:"The Japanese Enhanced Fujita Scale: Its Development and Implementation" 1426:
Canada, closely following the EF-Scale, while the CEF-Scale uses 31 DIs.
988: 1050: in this section. Unsourced material may be challenged and removed. 855: 190: 158: 154: 2138:. St. Johnsbury, Vermont: The Tornado Project of Environmental Films. 2083: 2082:
Doswell, Charles A.; Brooks, Harold E.; Dotzek, Nikolai (July 2009).
1672: 1527: 1256: 255: 1025: 2374:
Mitigation Assessment Team Report: Midwest Tornadoes of May 3, 1999
2292: 2182: 1304: 254:'s School of Meteorology, published a paper stating, ">20% of 31: 2084:"On the Implementation of the Enhanced Fujita Scale in the USA" 2356:
Symposium on the F-Scale and Severe-Weather Damage Assessment
1467:"IntensitĂ© des tornades : l'Ă©chelle de Fujita amĂ©liorĂ©e" 227:, the strongest of which were rated at EF3 on the new scale. 2283:
NOAA National Weather Service Improves Tornado Rating System
809:
Free-standing light poles, luminary poles, flag poles (FSP)
2286: 2070: 508: 2230:"Tornado Intensity Estimation: Past, Present, and Future" 2067:
A recommendation for an enhanced Fujita scale (EF-scale).
1393:
Repetto, Maria Pia; Burlando, Massimiliano (March 2023).
1726:
A recommendation for an Enhanced Fujita scale (EF-Scale)
1722: 258:
tornadoes may be capable of producing EF4–EF5 damage".
185:
The Enhanced Fujita scale replaced the decommissioned
2124: 1723:
McDonald, James; Kishor C. Mehta (October 10, 2006).
1396:
Thunderstorm Outflows and their Impact on Structures
1117: 840: 2334:
A Guide for Conducting Convective Windstorm Surveys
2081: 1582: 2385: 2328:The Tornado: An Engineering-Oriented Perspective 2369:University Corporation for Atmospheric Research 2278:National Oceanic and Atmospheric Administration 1606:National Oceanic and Atmospheric Administration 1501: 1392: 1230: 1576: 1550:"Enhanced Fujita Scale - Tornado Damage Scale" 1299: 1297: 1295: 1275:"National Weather Service Instruction 10-1605" 473: 440: 411: 382: 353: 324: 299: 2065:Wind Science and Engineering Center. (2006). 196:The newer scale was publicly unveiled by the 2346:Wind Science and Engineering Research Center 1734:Wind Science and Engineering Research Center 1280:. National Weather Service. pp. A–74–75 206:Wind Science and Engineering Research Center 2311:at The Warning Decision Training Branch of 1718: 1716: 1358:"Tornado Scale - The Enhanced Fujita Scale" 1307:. Storm Prediction Center. February 1, 2007 1292: 976:Learn how and when to remove these messages 1695:"Garrett's Blog: Mobile Home Tornado Risk" 1168:Severe weather terminology (United States) 600:Masonry apartment or motel building (MAM) 212:, which brought together dozens of expert 165:speeds were obtained through a process of 2253: 1084:Learn how and when to remove this message 1066:Learn how and when to remove this message 865: 2205:"The Tornado Outbreak of March 31, 2023" 2130: 1713: 1479: 1431: 1188:Lists of tornadoes and tornado outbreaks 655:Large, isolated retail building (LIRB) 124: 1665: 1368:from the original on December 18, 2017. 556:Manufactured home – single wide (MHSW) 534:Small barns or farm outbuildings (SBO) 509:Damage indicators and degrees of damage 14: 2386: 2207:. National Weather Service Quad Cities 1643: 1305:"The Enhanced Fujita Scale (EF Scale)" 1272: 578:Apartments, condos, townhouses (ACT) 567:Manufactured home – double wide (MHDW) 2159:The Fujita Scale of Tornado Intensity 1651:"Enhanced F Scale for Tornado Damage" 1441:"The International Fujita (IF) Scale" 1268: 1266: 545:One- or two-family residences (FR12) 2365:A Guide to F-Scale Damage Assessment 2293:The Enhanced Fujita Scale (EF Scale) 1508:International Journal of Climatology 1464: 1325:Fujita, T. Theodore (February 1971) 1237:International Journal of Climatology 1048:adding citations to reliable sources 1019: 982: 941: 787:Electrical transmission lines (ETL) 699:Junior or senior high school (JHSH) 2378:Federal Emergency Management Agency 1446:. European Severe Storms Laboratory 1382:. Environment Canada. May 10, 2013. 1163:Saffir–Simpson hurricane wind scale 622:Small professional building (SPB) 24: 1673:"Storm Prediction Center WCM Data" 1480:Suzuki, Shota; Tanaka, Yoshinobu. 1263: 1198:List of F5, EF5, and IF5 tornadoes 1193:List of F4, EF4, and IF4 tornadoes 677:Automobile service building (ASB) 220:in addition to its own resources. 25: 2420: 2319:The Enhanced Fujita Tornado Scale 2271: 2179:"Severe Thunderstorm Climatology" 957:This section has multiple issues. 841:Differences from the Fujita scale 240:National Severe Storms Laboratory 2342:Fujita Scale Enhancement Project 1273:Murphy, John D. (July 9, 2018). 1134: 1120: 1024: 987: 946: 498: 465: 432: 403: 374: 345: 2360:American Meteorological Society 2197: 2171: 2152: 2136:Significant Tornadoes 1680–1991 2075: 2059: 2048: 2037: 2026: 2015: 2004: 1993: 1982: 1971: 1960: 1949: 1938: 1927: 1916: 1905: 1894: 1883: 1872: 1861: 1850: 1839: 1828: 1817: 1806: 1795: 1784: 1773: 1762: 1751: 1687: 1614:American Meteorological Society 1567: 1495: 1473: 1458: 1035:needs additional citations for 965:or discuss these issues on the 871:Tornado rating classifications 202:American Meteorological Society 189:that was introduced in 1971 by 2111:10.1016/j.atmosres.2008.11.003 1504:"Tornado climatology of China" 1386: 1372: 1350: 1332: 1319: 1233:"Tornado climatology of China" 1224: 1213: 27:Tornado intensity rating scale 13: 1: 2323:National Climatic Data Center 1340:"Fujita Tornado Damage Scale" 1206: 743:Institutional building (IB) 611:Small retail building (SRB) 261: 1178:Tornado intensity and damage 765:Service station canopy (SSC) 319: 7: 1489:Japan Meteorological Agency 1111: 798:Free-standing towers (FST) 754:Metal building system (MBS) 10: 2425: 2164:December 30, 2011, at the 1158:International Fujita scale 776:Warehouse building (WHB) 732:High-rise building (HRB) 666:Automobile showroom (ASR) 644:Large shopping mall (LSM) 526:Maximum degrees of damage 235:and forensic engineering. 180: 175:International Fujita scale 29: 2255:10.1175/BAMS-D-11-00006.1 2011:c:File:EF DI 24 (ETL).jpg 1956:c:File:EF DI19 (HROB).jpg 1945:c:File:EF DI18 (MROB).jpg 1923:c:File:EF DI16 (JHSH).jpg 1879:c:File:EF DI12 (LIRB).jpg 1675:. Storm Prediction Center 1653:. Storm Prediction Center 935: 933: 928: 926: 921: 918: 915: 910: 907: 904: 901: 898: 895: 721:Mid-rise building (MRB) 710:Low-rise building (LRB) 286: 283: 280: 275: 272: 112: 101: 90: 79: 68: 57: 46: 2313:National Weather Service 2071:https://www.spc.noaa.gov 2033:c:File:EF DI26 (FSP).jpg 2022:c:File:EF DI25 (FST).jpg 2000:c:File:EF DI23 (WHB).jpg 1989:c:File:EF DI22 (SSC).jpg 1978:c:File:EF DI21 (MBS).jpg 1934:c:File:EF DI17 (LRB).jpg 1901:c:File:EF DI14 (ASB).jpg 1890:c:File:EF DI13 (ASR).jpg 1868:c:File:EF DI11 (LSM).jpg 1791:c:File:EF DI4 (MHDW).jpg 1780:c:File:EF DI3 (MHSW).jpg 1769:c:File:EF DI2 (FR12).jpg 688:Elementary school (ES) 198:National Weather Service 131:National Weather Service 2297:Storm Prediction Center 2234:Bull. Amer. Meteor. Soc 2055:c:File:EF DI28 (TS).jpg 2044:c:File:EF DI27 (TH).jpg 1967:c:File:EF DI20 (IB).jpg 1912:c:File:EF DI15 (ES).jpg 1857:c:File:EF DI10 (SM).jpg 1846:c:File:EF DI9 (SPB).jpg 1835:c:File:EF DI8 (SRB).jpg 1824:c:File:EF DI7 (MAM).jpg 1802:c:File:EF DI5 (ACT).jpg 1758:c:File:EF DI1 (SBO).jpg 1630:10.1175/MWR-D-23-0242.1 1380:"Enhanced Fujita Scale" 1102:Storm Prediction Center 460:2024 Greenfield tornado 244:Storm Prediction Center 200:at a conference of the 2307:June 21, 2017, at the 1610:University of Oklahoma 1597:Monthly Weather Review 866:Rating classifications 252:University of Oklahoma 134: 2409:Scales in meteorology 2350:Texas Tech University 2168:at tornadoproject.com 1813:c:File:EF DI6 (M).jpg 1738:Texas Tech University 1096:For purposes such as 831:Trees: softwood (TS) 820:Trees: hardwood (TH) 523:Damage indicator (DI) 210:Texas Tech University 139:Enhanced Fujita scale 128: 53:No surveyable damage 41:Enhanced Fujita Scale 18:Enhanced Fujita Scale 2091:Atmospheric Research 1590:Academic publication 1554:factsjustforkids.com 1044:improve this article 233:mobile doppler radar 86:Considerable damage 2246:2013BAMS...94..641E 2132:Grazulis, Thomas P. 2103:2009AtmRe..93..554D 1701:. February 28, 2013 1622:2024MWRv..152.1689L 1520:2018IJCli..38.2478C 1404:University of Genoa 1249:2018IJCli..38.2478C 1098:tornado climatology 872: 277:Wind speed estimate 108:Devastating damage 43: 2185:on October 4, 2012 1732:. Lubbock, Texas: 1000:. You can help by 870: 493:2013 Moore tornado 287:Example of damage 225:multiple tornadoes 167:expert elicitation 135: 119:Incredible damage 105:166–200 mph 94:136–165 mph 83:111–135 mph 39: 2302:EF-Scale Training 1413:978-88-3618-210-7 1094: 1093: 1086: 1076: 1075: 1068: 1018: 1017: 980: 940: 939: 838: 837: 506: 505: 284:Potential Damage 147:tornado intensity 123: 122: 72:86–110 mph 16:(Redirected from 2416: 2267: 2257: 2217: 2216: 2214: 2212: 2201: 2195: 2194: 2192: 2190: 2175: 2169: 2156: 2150: 2149: 2128: 2122: 2121: 2119: 2117: 2097:(1–3): 556–557. 2088: 2079: 2073: 2063: 2057: 2052: 2046: 2041: 2035: 2030: 2024: 2019: 2013: 2008: 2002: 1997: 1991: 1986: 1980: 1975: 1969: 1964: 1958: 1953: 1947: 1942: 1936: 1931: 1925: 1920: 1914: 1909: 1903: 1898: 1892: 1887: 1881: 1876: 1870: 1865: 1859: 1854: 1848: 1843: 1837: 1832: 1826: 1821: 1815: 1810: 1804: 1799: 1793: 1788: 1782: 1777: 1771: 1766: 1760: 1755: 1749: 1748: 1746: 1744: 1731: 1720: 1711: 1710: 1708: 1706: 1691: 1685: 1684: 1682: 1680: 1669: 1663: 1662: 1660: 1658: 1647: 1641: 1640: 1638: 1636: 1593: 1580: 1574: 1571: 1565: 1564: 1562: 1560: 1546: 1540: 1539: 1528:10.1002/joc.5369 1514:(5): 2478–2489. 1499: 1493: 1492: 1486: 1477: 1471: 1470: 1462: 1456: 1455: 1453: 1451: 1445: 1435: 1429: 1428: 1422: 1420: 1401: 1390: 1384: 1383: 1376: 1370: 1369: 1362:TornadoFacts.net 1354: 1348: 1347: 1344:www.spc.noaa.gov 1336: 1330: 1323: 1317: 1316: 1314: 1312: 1301: 1290: 1289: 1287: 1285: 1279: 1270: 1261: 1260: 1257:10.1002/joc.5369 1243:(5): 2478–2489. 1228: 1222: 1217: 1183:Wind engineering 1144: 1139: 1138: 1130: 1125: 1124: 1089: 1082: 1071: 1064: 1060: 1057: 1051: 1028: 1020: 1013: 1010: 991: 983: 972: 950: 949: 942: 873: 869: 633:Strip mall (SM) 517: 516: 502: 469: 436: 407: 378: 349: 278: 270: 269: 141:(abbreviated as 75:Moderate damage 61:65–85 mph 44: 38: 21: 2424: 2423: 2419: 2418: 2417: 2415: 2414: 2413: 2384: 2383: 2309:Wayback Machine 2274: 2221: 2220: 2210: 2208: 2203: 2202: 2198: 2188: 2186: 2177: 2176: 2172: 2166:Wayback Machine 2157: 2153: 2146: 2129: 2125: 2115: 2113: 2086: 2080: 2076: 2064: 2060: 2053: 2049: 2042: 2038: 2031: 2027: 2020: 2016: 2009: 2005: 1998: 1994: 1987: 1983: 1976: 1972: 1965: 1961: 1954: 1950: 1943: 1939: 1932: 1928: 1921: 1917: 1910: 1906: 1899: 1895: 1888: 1884: 1877: 1873: 1866: 1862: 1855: 1851: 1844: 1840: 1833: 1829: 1822: 1818: 1811: 1807: 1800: 1796: 1789: 1785: 1778: 1774: 1767: 1763: 1756: 1752: 1742: 1740: 1729: 1721: 1714: 1704: 1702: 1699:5newsonline.com 1693: 1692: 1688: 1678: 1676: 1671: 1670: 1666: 1656: 1654: 1649: 1648: 1644: 1634: 1632: 1587: 1581: 1577: 1572: 1568: 1558: 1556: 1548: 1547: 1543: 1500: 1496: 1484: 1478: 1474: 1463: 1459: 1449: 1447: 1443: 1436: 1432: 1418: 1416: 1414: 1399: 1391: 1387: 1378: 1377: 1373: 1356: 1355: 1351: 1338: 1337: 1333: 1324: 1320: 1310: 1308: 1303: 1302: 1293: 1283: 1281: 1277: 1271: 1264: 1229: 1225: 1218: 1214: 1209: 1204: 1148: 1147: 1140: 1133: 1126: 1119: 1114: 1090: 1079: 1078: 1077: 1072: 1061: 1055: 1052: 1041: 1029: 1014: 1008: 1005: 998:needs expansion 992: 951: 947: 868: 843: 511: 478: 445: 416: 387: 358: 329: 304: 276: 264: 218:civil engineers 183: 35: 28: 23: 22: 15: 12: 11: 5: 2422: 2412: 2411: 2406: 2401: 2396: 2382: 2381: 2371: 2362: 2353: 2339: 2338: 2337: 2331: 2325: 2316: 2299: 2290: 2273: 2272:External links 2270: 2269: 2268: 2226:Edwards, Roger 2219: 2218: 2196: 2170: 2151: 2144: 2123: 2074: 2058: 2047: 2036: 2025: 2014: 2003: 1992: 1981: 1970: 1959: 1948: 1937: 1926: 1915: 1904: 1893: 1882: 1871: 1860: 1849: 1838: 1827: 1816: 1805: 1794: 1783: 1772: 1761: 1750: 1712: 1686: 1664: 1642: 1575: 1566: 1541: 1494: 1472: 1457: 1430: 1412: 1406:. p. 31. 1385: 1371: 1349: 1331: 1318: 1291: 1262: 1223: 1211: 1210: 1208: 1205: 1203: 1202: 1201: 1200: 1195: 1185: 1180: 1175: 1170: 1165: 1160: 1155: 1153:Beaufort scale 1149: 1146: 1145: 1142:Physics portal 1131: 1128:Weather portal 1116: 1115: 1113: 1110: 1092: 1091: 1074: 1073: 1032: 1030: 1023: 1016: 1015: 995: 993: 986: 981: 955: 954: 952: 945: 938: 937: 934: 931: 930: 927: 924: 923: 920: 917: 913: 912: 909: 906: 903: 900: 897: 893: 892: 889: 886: 883: 880: 877: 867: 864: 842: 839: 836: 835: 832: 829: 825: 824: 821: 818: 814: 813: 810: 807: 803: 802: 799: 796: 792: 791: 788: 785: 781: 780: 777: 774: 770: 769: 766: 763: 759: 758: 755: 752: 748: 747: 744: 741: 737: 736: 733: 730: 726: 725: 722: 719: 715: 714: 711: 708: 704: 703: 700: 697: 693: 692: 689: 686: 682: 681: 678: 675: 671: 670: 667: 664: 660: 659: 656: 653: 649: 648: 645: 642: 638: 637: 634: 631: 627: 626: 623: 620: 616: 615: 612: 609: 605: 604: 601: 598: 594: 593: 590: 587: 583: 582: 579: 576: 572: 571: 568: 565: 561: 560: 557: 554: 550: 549: 546: 543: 539: 538: 535: 532: 528: 527: 524: 521: 510: 507: 504: 503: 496: 488: 485: 482: 479: 474: 471: 470: 463: 455: 452: 449: 446: 441: 438: 437: 430: 426: 423: 420: 417: 412: 409: 408: 401: 397: 394: 391: 388: 383: 380: 379: 372: 368: 365: 362: 359: 354: 351: 350: 343: 339: 336: 333: 330: 325: 322: 321: 318: 314: 311: 308: 305: 300: 297: 296: 293: 289: 288: 285: 282: 279: 274: 263: 260: 214:meteorologists 182: 179: 121: 120: 117: 114: 110: 109: 106: 103: 99: 98: 97:Severe damage 95: 92: 88: 87: 84: 81: 77: 76: 73: 70: 66: 65: 62: 59: 55: 54: 51: 48: 26: 9: 6: 4: 3: 2: 2421: 2410: 2407: 2405: 2402: 2400: 2397: 2395: 2394:Hazard scales 2392: 2391: 2389: 2379: 2375: 2372: 2370: 2366: 2363: 2361: 2357: 2354: 2351: 2347: 2343: 2340: 2335: 2332: 2329: 2326: 2324: 2320: 2317: 2314: 2310: 2306: 2303: 2300: 2298: 2294: 2291: 2288: 2284: 2281: 2280: 2279: 2276: 2275: 2265: 2261: 2256: 2251: 2247: 2243: 2240:(5): 641–53. 2239: 2235: 2231: 2227: 2223: 2222: 2206: 2200: 2184: 2180: 2174: 2167: 2163: 2160: 2155: 2147: 2145:1-879362-03-1 2141: 2137: 2134:(July 1993). 2133: 2127: 2112: 2108: 2104: 2100: 2096: 2092: 2085: 2078: 2072: 2068: 2062: 2056: 2051: 2045: 2040: 2034: 2029: 2023: 2018: 2012: 2007: 2001: 1996: 1990: 1985: 1979: 1974: 1968: 1963: 1957: 1952: 1946: 1941: 1935: 1930: 1924: 1919: 1913: 1908: 1902: 1897: 1891: 1886: 1880: 1875: 1869: 1864: 1858: 1853: 1847: 1842: 1836: 1831: 1825: 1820: 1814: 1809: 1803: 1798: 1792: 1787: 1781: 1776: 1770: 1765: 1759: 1754: 1739: 1735: 1728: 1727: 1719: 1717: 1705:September 30, 1700: 1696: 1690: 1679:September 15, 1674: 1668: 1652: 1646: 1631: 1627: 1623: 1619: 1616:: 1689–1710. 1615: 1611: 1607: 1603: 1599: 1598: 1591: 1586: 1579: 1570: 1555: 1551: 1545: 1537: 1533: 1529: 1525: 1521: 1517: 1513: 1509: 1505: 1498: 1490: 1483: 1476: 1468: 1461: 1442: 1434: 1427: 1415: 1409: 1405: 1398: 1397: 1389: 1381: 1375: 1367: 1363: 1359: 1353: 1345: 1341: 1335: 1328: 1322: 1306: 1300: 1298: 1296: 1276: 1269: 1267: 1258: 1254: 1250: 1246: 1242: 1238: 1234: 1227: 1221: 1216: 1212: 1199: 1196: 1194: 1191: 1190: 1189: 1186: 1184: 1181: 1179: 1176: 1174: 1171: 1169: 1166: 1164: 1161: 1159: 1156: 1154: 1151: 1150: 1143: 1137: 1132: 1129: 1123: 1118: 1109: 1106: 1103: 1099: 1088: 1085: 1070: 1067: 1059: 1049: 1045: 1039: 1038: 1033:This section 1031: 1027: 1022: 1021: 1012: 1003: 999: 996:This section 994: 990: 985: 984: 979: 977: 970: 969: 964: 963: 958: 953: 944: 943: 932: 925: 914: 911:Catastrophic 894: 890: 887: 884: 881: 878: 875: 874: 863: 859: 857: 853: 847: 833: 830: 827: 826: 822: 819: 816: 815: 811: 808: 805: 804: 800: 797: 794: 793: 789: 786: 783: 782: 778: 775: 772: 771: 767: 764: 761: 760: 756: 753: 750: 749: 745: 742: 739: 738: 734: 731: 728: 727: 723: 720: 717: 716: 712: 709: 706: 705: 701: 698: 695: 694: 690: 687: 684: 683: 679: 676: 673: 672: 668: 665: 662: 661: 657: 654: 651: 650: 646: 643: 640: 639: 635: 632: 629: 628: 624: 621: 618: 617: 613: 610: 607: 606: 602: 599: 596: 595: 591: 588: 585: 584: 580: 577: 574: 573: 569: 566: 563: 562: 558: 555: 552: 551: 547: 544: 541: 540: 536: 533: 530: 529: 525: 522: 519: 518: 515: 501: 497: 494: 489: 486: 483: 480: 477: 472: 468: 464: 461: 456: 453: 450: 447: 444: 439: 435: 431: 427: 424: 421: 418: 415: 410: 406: 402: 398: 395: 392: 389: 386: 381: 377: 373: 369: 366: 363: 360: 357: 352: 348: 344: 340: 337: 334: 331: 328: 323: 315: 312: 309: 306: 303: 298: 294: 291: 290: 271: 268: 259: 257: 253: 249: 245: 241: 236: 234: 228: 226: 221: 219: 215: 211: 207: 203: 199: 194: 192: 188: 178: 176: 172: 168: 162: 160: 156: 150: 148: 144: 140: 132: 127: 118: 115: 111: 107: 104: 100: 96: 93: 89: 85: 82: 78: 74: 71: 67: 64:Light damage 63: 60: 56: 52: 49: 45: 42: 37: 33: 19: 2237: 2233: 2209:. Retrieved 2199: 2187:. Retrieved 2183:the original 2173: 2154: 2135: 2126: 2114:. Retrieved 2094: 2090: 2077: 2066: 2061: 2050: 2039: 2028: 2017: 2006: 1995: 1984: 1973: 1962: 1951: 1940: 1929: 1918: 1907: 1896: 1885: 1874: 1863: 1852: 1841: 1830: 1819: 1808: 1797: 1786: 1775: 1764: 1753: 1741:. Retrieved 1725: 1703:. Retrieved 1698: 1689: 1677:. Retrieved 1667: 1655:. Retrieved 1645: 1633:. Retrieved 1601: 1595: 1578: 1569: 1557:. Retrieved 1553: 1544: 1511: 1507: 1497: 1488: 1475: 1460: 1448:. Retrieved 1433: 1424: 1417:. Retrieved 1395: 1388: 1374: 1361: 1352: 1343: 1334: 1321: 1309:. Retrieved 1284:November 29, 1282:. Retrieved 1240: 1236: 1226: 1215: 1107: 1095: 1080: 1062: 1056:January 2023 1053: 1042:Please help 1037:verification 1034: 1006: 1002:adding to it 997: 973: 966: 960: 959:Please help 956: 929:Significant 860: 848: 844: 512: 475: 442: 413: 384: 355: 326: 301: 265: 237: 229: 222: 195: 187:Fujita scale 184: 171:Fujita scale 163: 151: 142: 138: 136: 116:>200 mph 40: 36: 2336:(NWS SR146) 2330:(NWS SR147) 2116:January 20, 1173:TORRO scale 852:mobile home 155:wind speeds 2388:Categories 1465:KERAUNOS. 1207:References 962:improve it 856:strip mall 589:Motel (M) 281:Frequency 262:Parameters 250:, and the 191:Ted Fujita 159:vegetation 2367:, MetEd, 1635:March 19, 1536:0899-8418 968:talk page 899:Moderate 256:supercell 2305:Archived 2211:July 21, 2162:Archived 1657:June 21, 1612:via the 1559:June 14, 1450:July 30, 1419:June 11, 1366:Archived 1311:June 21, 1112:See also 1009:May 2013 936:Intense 922:Violent 908:Extreme 451:267–322 422:218–266 393:178–217 364:138–177 335:105–137 145:) rates 143:EF-Scale 50:Unknown 2404:Tornado 2264:7842905 2242:Bibcode 2189:May 22, 2099:Bibcode 1743:May 21, 1618:Bibcode 1604:(aop). 1516:Bibcode 1245:Bibcode 919:Strong 905:Severe 902:Strong 448:166–200 419:136–165 390:111–135 367:32.98% 338:52.82% 181:History 32:18F-EF5 2262:  2142:  1534:  1410:  854:" or " 520:DI No. 487:0.05% 454:0.45% 425:2.18% 396:8.41% 361:86–110 313:3.11% 273:Scale 2315:(NWS) 2260:S2CID 2087:(PDF) 1730:(PDF) 1485:(PDF) 1444:(PDF) 1400:(PDF) 1278:(PDF) 916:Weak 896:Weak 484:323+ 332:65–85 295:km/h 248:CIWRO 2399:Wind 2289:News 2287:NOAA 2213:2023 2191:2013 2140:ISBN 2118:2020 1745:2013 1707:2020 1681:2021 1659:2009 1637:2024 1608:and 1561:2019 1532:ISSN 1452:2023 1421:2024 1408:ISBN 1313:2009 1286:2019 891:EF5 888:EF4 885:EF3 882:EF2 879:EF1 876:EF0 481:201+ 320:N/A 310:N/A 292:mph 216:and 173:and 137:The 129:The 113:EF5 102:EF4 91:EF3 80:EF2 69:EF1 58:EF0 47:EFU 2358:at 2348:at 2321:at 2295:at 2285:at 2250:doi 2107:doi 1626:doi 1524:doi 1253:doi 1046:by 1004:. 746:11 735:10 724:10 702:11 691:10 592:10 570:12 548:10 476:EF5 443:EF4 414:EF3 385:EF2 356:EF1 327:EF0 307:N/A 302:EFU 208:at 2390:: 2258:. 2248:. 2238:94 2236:. 2232:. 2105:. 2095:93 2093:. 2089:. 1736:, 1715:^ 1697:. 1624:. 1602:-1 1600:. 1594:. 1552:. 1530:. 1522:. 1512:38 1510:. 1506:. 1487:. 1423:. 1402:. 1364:. 1360:. 1342:. 1294:^ 1265:^ 1251:. 1241:38 1239:. 1235:. 971:. 834:5 828:28 823:5 817:27 812:3 806:26 801:3 795:25 790:6 784:24 779:7 773:23 768:6 762:22 757:8 751:21 740:20 729:19 718:18 713:7 707:17 696:16 685:15 680:8 674:14 669:8 663:13 658:7 652:12 647:9 641:11 636:9 630:10 625:9 614:8 603:7 581:6 559:9 537:8 495:) 462:) 246:, 242:, 2380:) 2376:( 2352:) 2344:( 2266:. 2252:: 2244:: 2215:. 2193:. 2148:. 2120:. 2109:: 2101:: 1747:. 1709:. 1683:. 1661:. 1639:. 1628:: 1620:: 1592:) 1588:( 1563:. 1538:. 1526:: 1518:: 1491:. 1469:. 1454:. 1346:. 1315:. 1288:. 1259:. 1255:: 1247:: 1087:) 1081:( 1069:) 1063:( 1058:) 1054:( 1040:. 1011:) 1007:( 978:) 974:( 619:9 608:8 597:7 586:6 575:5 564:4 553:3 542:2 531:1 34:. 20:)

Index

Enhanced Fujita Scale
18F-EF5
Enhanced Fujita Scale

National Weather Service
tornado intensity
wind speeds
vegetation
expert elicitation
Fujita scale
International Fujita scale
Fujita scale
Ted Fujita
National Weather Service
American Meteorological Society
Wind Science and Engineering Research Center
Texas Tech University
meteorologists
civil engineers
multiple tornadoes
mobile doppler radar
National Severe Storms Laboratory
Storm Prediction Center
CIWRO
University of Oklahoma
supercell
EF0 damage example--Well-built structures are typically unscathed, though sometimes sustaining broken windows, with minor damage to roofs and chimneys. Billboards and large signs can be knocked down. Trees may have large branches broken off and can be uprooted if they have shallow roots.
EF1 damage example--There is damage to mobile homes and other temporary structures becomes significant, and cars and other vehicles can be pushed off the road or flipped. Permanent structures can suffer major damage to their roofs.
EF2 damage example--Well-built structures can suffer serious damage, including roof loss, and the collapse of some exterior walls may occur in poorly built structures. Mobile homes, however, are destroyed. Vehicles can be lifted off the ground, and lighter objects can become small missiles, causing damage outside of the tornado's main path. Wooded areas have a large percentage of their trees snapped or uprooted.
EF3 damage example--A few parts of affected buildings are left standing. Well-built structures lose all outer and some inner walls. Unanchored homes are swept away, and homes with poor anchoring may collapse entirely. Trains and train cars are all overturned. Small vehicles and similarly sized objects are lifted off the ground and tossed as projectiles. Wooded areas suffer an almost total loss of vegetation and some tree debarking may occur.

Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.

↑