List of North American tornadoes and tornado outbreaks

history

Parent article: List of tornadoes and tornado outbreaks


These are some notable tornadoes, tornado outbreaks, and tornado outbreak sequences that have occurred in North America.

  1. The listing is U.S.-centric, with more and more consistent information available for U.S. tornadoes. Some North American outbreaks affecting the U.S. may only have U.S. tornado information.
  2. Exact death and injury counts are not possible, especially for large events and events before 1955.
  3. Prior to 1950 in the United States, only significant tornadoes are listed for the number of tornadoes in outbreaks.
  4. Due to increasing detection, particularly in the U.S., numbers of counted tornadoes have increased markedly in recent decades although number of actual tornadoes and counted significant tornadoes has not. In older events, the number of tornadoes officially counted is likely underestimated.

United States

Pre-1900

 {| class="wikitable" width="100%" !Event !Date !Area !Tornadoes !Casualties !Notes |- | Rehoboth, Massachusetts tornado August 1671 Massachusetts - 0 fatalities Earliest known U.S. tornado |- | Cambridge, Massachusetts tornado July 8, 1680 Massachusetts - 1 fatality Earliest known U.S. killer tornado |- | Four-State Tornado Swarm August 15, 1787 New England - 2 fatalities |- | War of 1812 Washington D.C. tornado August 25, 1814 Washington, D.C. - - Killed several British soldiers occupying city |- | Great Natchez Tornado May 7, 1840 Southeastern United States >1 >317 fatalities, >109 injuries 2nd deadliest tornado in U.S. history |- | June 1860 Mid-Mississippi Valley tornado outbreak June 3, 1860 Middle Mississippi Valley - ≥148 fatalities, ≥409 injuries Exceptionally violent outbreak |- | 1865 Viroqua, Wisconsin tornado June 28, 1865 Viroqua, Wisconsin >1 ≥22 fatalities |- | 1871 St. Louis tornado March 8, 1871 Middle Mississippi Valley ≥1 9 fatalities, 60 injuries Struck St. Louis-East St. Louis |- | March 1875 Southeast tornado outbreak March 20, 1875 Southeastern United States - ≥93 fatalities, ≥367 injuries (7 violent, ≥11 killer) |- | May 1875 Southeast tornado outbreak May 1, 1875 Southeastern United States - 58 fatalities, 195 injuries (1 violent, 7 killer) |- | 1878 Wallingford tornado August 9, 1878 Connecticut - 34 fatalities, ≥70 injuries Deadliest tornado in Connecticut history |- | May 1879 Central Plains tornado outbreak May 29 - May 30, 1879 Central Great Plains - ≥36 fatalities, ≥186 injuries (≥15 significant, 6 violent, ≥9 killer) |- | April 1880 tornado outbreak April 18, 1880 Mississippi Valley - Great Plains - ≥165 fatalities, ≥511 injuries (>22 significant, 5 violent, 14 killer) |- | 1881 Minnesota tornado outbreak July 15, 1881 Minnesota ≥ 6 24 fatalities, 123 injuries |- | April 1883 Southeast tornado outbreak April 22 - 23, 1883 Southeastern United States - ≥109 fatalities, ≥755 injuries (17 significant, 3 violent, 13 killer) |- | May 1883 tornado outbreak May 18, 1883 Middle-Lower Mississippi Valley - ≥64 fatalities, ≥386 injuries (≥21 significant, 6 violent, 16 killers) |- | 1883 Rochester tornado August 21, 1883 Rochester, Minnesota - 37 fatalities, 200+ injured Violent tornado led to the formation of the Mayo Clinic |- | 1884 Enigma tornado outbreak February 19 - 20, 1884 Central - Eastern United States >41 >178 fatalities, ≥1056 injuries Among largest known outbreaks (>37 significant, ≥4 violent, ≥28 killer) |- | 1884 Howard, South Dakota tornado August 28, 1884 Howard, South Dakota - - Oldest known tornado photograph »Oldest Known Photo of a Tornado - August 28, 1884 |- | 1886 Sauk Rapids tornado April 14, 1886 Central Minnesota - 72 fatalities, 200+ injuries Deadliest tornado in Minnesota history |- | 1890 St. Louis tornado outbreak January 12, 1890 Middle Mississippi Valley - 16 fatalities, 91 injuries (≥1 violent, 3 killer) |- | March 1890 Mid-Mississippi Valley tornado outbreak March 27, 1890 Middle Mississippi Valley - ≥146 fatalities, ≥847 injuries 76 killed in downtown Louisville, KY (≥24 significant, 6 violent, 16 killer) |- | 1890 Lawrence tornado July 26, 1890 Lawrence, Massachusetts - 8 fatalities, 63 injuries Eleven mile path through city, about F3 in strength |- | 1894 Upper Mississippi Valley tornado outbreak September 21 - 22, 1894 Upper Mississippi Valley - >63 fatalities, >253 injuries (>9 significant, 4 violent, 5 killer) |- | 1895 Kansas-Iowa tornado outbreak May 1 - 3, 1895 Central-Northern Great Plains - >18-35 fatalities, >67 injuries 7 killed in schools in Ireton-Hull, IA (2 F5s, 3 killer) |- | Sherman, Texas tornado outbreak May 15, 1896 Southern Great Plains - 85 fatalities, ≥291 injuries |- | 1896 Central Plains tornado outbreak May 17, 1896 Central Great Plains - 25 fatalities, ≥260 injuries |- | Late-May 1896 tornado outbreak May 24 - 25, 1896 Upper Mississippi Valley - Great Lakes (Ontario) - ≥79 fatalities, >215 injuries |- | 1896 St. Louis-East St. Louis tornado May 27 - 28, 1896 Missouri - Illinois / Mid-Atlantic - ≥305 fatalities, >1236 injuries 3rd deadliest tornado in U.S. history (10 significant, 4 violent, 7 killer (27th)) |- | January 1898 Arkansas tornado outbreak January 11, 1898 Lower Mississippi Valley - ≥56 fatalities, ≥119 injuries (1 violent, 2 killer) |- | May 1898 Mississippi Valley tornado outbreaks May 17 - 18, 1898 Middle-Upper Mississippi Valley - 55 fatalities, ≥380 injuries (5 violent, 10 killer) |- | 1899 New Richmond tornado June 11 - 12, 1899 Upper Midwest - ≥124 fatalities, ≥203 injuries (2 violent, 3 killer) |- |}

1900–1919

{| class="wikitable" width="100%" !Event !Date !Area !Tornadoes !Casualties !Notes |- | Kansas "Forgotten" tornado outbreak May 6, 1900 Central United States - ≥3 fatalities, ≥16 injuries Large outbreak with little known information (≥17 significant, 2 killer) |- | 1902 Goliad, Texas tornado outbreak May 18, 1902 South Central U.S. - 114 fatalities, ≥279 injuries (1 violent, 3 killer; tied with Waco tornado as deadliest in Texas history) |- | 1904 St. Louis tornado August 19, 1904 Missouri - Illinois ≥1 3 fatalities, ≥10 injuries Heavy damage in downtown St. Louis |- | 1905 Snyder, Oklahoma tornado May 10, 1905 Oklahoma ≥1 97 fatalities, ≥150 injuries F5 largely destroyed Snyder |- | 1908 Southeast tornado outbreak April 23 - 25, 1908 Southeastern United States - 324 fatalities, ≥1,720 injuries (≥41 significant, 6 violent, 19 killer) |- | Late-April 1909 tornado outbreak April 29 - May 1, 1909 Mississippi - Tennessee Valley - ≥165 fatalities, ≥696 injuries (35 significant, 4 violent, 24 killer) |- | Owosso, Michigan tornado November 11, 1911 Owosso, Michigan and Shiawassee County, Michigan - 2 dead, 9 injured Occurred at 11:11 PM, on 11-11-11 (November 11, 1911), named "Tornado Of The Elevens". |- | April 1912 tornado outbreak sequence April 20 - 29, 1912 Southern-Central Great Plains - Middle Mississippi Valley - Southeastern United States - ≥104 fatalities, ≥630 injuries (≥59 significant, 17 violent, ≥34 killer) |- | Mid-March 1913 tornado outbreak March 13 - 14, 1913 Southeastern United States - Middle Mississippi Valley - 78 fatalities, ≥492 injuries (20 significant, 3 violent, 16 killer) |- | Easter Weekend 1913 tornado outbreak sequence March 20 - 24, 1913 Southeastern United States - Central Great Plains - Middle Mississippi Valley - 48 fatalities, ≥1,535 injuries Omaha Easter Sunday Tornado (1913) on 23rd (≥26 significant, 7 violent, 18 killer) |- | June 1916 tornado outbreak June 5 - 6, 1916 Mississippi Valley - Southern U.S. - 112 fatalities, 741 injuries (34 significant, 1 violent, 23 killer) |- | February 1917 Southeast tornado outbreak February 23, 1917 Southeastern United States - 17 fatalities, 81 injuries |- | 1917 New Albany, Indiana tornado outbreak March 23, 1917 Middle Mississippi Valley - 47 fatalities, 311 injuries |- | May - June 1917 tornado outbreak sequence May 25 - 7, 1917 Central - Southeastern United States - >224 fatalities (>34 significant, >7 violent, >25 killer) |- | May 1918 tornado outbreak sequence May 18 - 21, 1918 Central-Northern Great Plains - Upper Midwest - 44 fatalities, 340 injuries (≥34 significant, 5 violent, 13 killer) |- | 1918 Tyler tornado August 21, 1918 Tyler, Minnesota - 36 killed, 225 injured Estimated at F4 |- | March 1919 tornado outbreak March 14 - 16, 1919 Central United States - 53 fatalities, 219 injuries (4 violent, 18 killer) |- | April 1919 tornado outbreak April 8 - 9, 1919 Southern Great Plains - 92 fatalities, 412 injuries (4 violent, 10 killer) |- | 1919 Fergus Falls tornado June 22, 1919 Fergus Falls, Minnesota - 57 fatalities, 200 injured estimated to be F5 |}

1920–1929

{| class="wikitable" width="100%" !Event !Date !Area !Tornadoes !Casualties !Notes |- | 1920 Palm Sunday tornado outbreak March 28, 1920 Midwest - Southeast - ≥380 fatalities, ≥1215 injuries (31 significant, 8 violent, 19 killer) |- | 1920 Mississippi-Alabama tornado outbreaks April 19 - 21, 1920 Southeastern United States - 243 fatalities, 1374 injuries (6 violent, 9 killer) |- | April 1921 tornado outbreak April 15 - 16, 1921 Southern U.S. - 90 fatalities, 676 injuries (34 significant, 1 violent, 17 killer) |- | November 1922 Great Plains tornado outbreak November 4, 1922 Great Plains - 17 fatalities, 68 injuries (1 violent, 4 killer) |- | April 1924 tornado outbreak April 30, 1924 Southeastern United States - 110 fatalities, 1133 injuries 7 killed at school in Horrell Hill, SC (24 significant, 2 violent, 16 killer) |- | 1924 Sandusky-Lorain, Ohio tornado outbreak June 28, 1924 Eastern Great Lakes - 90 fatalities, 349 injuries (≥6 significant, 1 violent, 4 killer) |- | 1925 Tri-State tornado March 18, 1925 Middle Mississippi - Ohio Valley ≥9 ≥747 fatalities, ≥2298 injuries Deadliest and 3rd costliest U.S., longest path and duration in world (≥9 significant, 3 violent, 8 killer) |- | 1926 La Plata, Maryland tornado outbreak November 9, 1926 Mid-Atlantic - 17 fatalities, 65 injuries 17 killed at schools |- | Late-November 1926 tornado outbreak November 25 - 26, 1926 Southern U.S. - 107 fatalities, 451 injuries (27 significant, 2 violent, 18 killer) |- | April 1927 Southern Plains-Midwest tornado outbreak April 18 - 19, 1927 Southern Great Plains - Midwest - 146 fatalities, ≥235 injuries (16 significant, 3 violent, 5 killer) |- | May 1927 tornado outbreak May 8 - 9, 1927 Great Plains - Mississippi Valley - 217 fatalities, 1156 injuries (32 significant, 8 violent, 17 killer) + 1 F5 with 10 fatalities and 300 injuries in Kansas on May 7 |- | 1927 St. Louis tornado outbreak September 29, 1927 Middle-Lower Mississippi Valley - 82 fatalities, 620 injuries Second costliest tornado in history (11 significant, 1 violent, 3 killer) |- | September 1928 Upper Plains-Midwest tornado outbreak September 13 - 14, 1928 Upper Great Plains - Midwest - 23 fatalities, 197 injuries (15 significant, 3 violent, 3 killer) |- | January 1929 Mid-Mississippi Valley tornado outbreak January 18, 1929 Middle Mississippi Valley - 10 fatalities, 46 injuries (7 significant, 5 killer) |- | 1929 Slocum, Texas-Statesboro, Georgia tornado outbreaks April 24 - 25, 1929 Great Plains - Midwest - Southeast - 63 fatalities, 567 injuries (15 significant, 4 violent, 7 killer) |- | 1929 Rye Cove, Virginia tornado outbreaks May 1 - 2, 1929 Southern - Eastern United States - 44 fatalities, 349 injuries 13 killed at school in Rye Cove, VA (17 significant, 10 killer) |- |}

1930–1939

{| class="wikitable" width="100%" !Event !Date !Area !Tornadoes !Casualties !Notes |- | May 1930 tornado outbreak sequence May 1 - 2 & 5 - 6, 1930 Great Plains - Mississippi Valley - 94 fatalities, 520 injuries (51 significant, 11 violent, 15 killer) |- | November 1930 Southern Plains tornado outbreak November 19, 1930 Southern Great Plains - 24 fatalities, 162 injuries (8 significant, 1 violent, 2 killer) |- | 1932 Deep South tornado outbreak March 21 - 22, 1932 Southeastern United States - ≥330 fatalities, 2145 injuries (36 significant, 10 violent, 27 killer) |- | March 1933 Nashville tornado outbreak March 14, 1933 Tennessee Valley - 44 fatalities, 461 injuries Destructive killer tornado through downtown Nashville (5 significant, 1 violent, 4 killer) |- | Late-March 1933 tornado outbreak March 30 - 31, 1933 Southeast - 87 fatalities, 620 injuries (30 significant, 1 violent, 16 killer) |- | 1936 Cordele-Greensboro tornado outbreak April 1 - 2, 1936 Southeast - 45 fatalities, 568 injuries (8 significant, 2 violent, 8 killer) |- | 1936 Tupelo-Gainesville tornado outbreak April 5 - 6, 1936 Southeastern United States - 454 fatalities, 2498 injuries (12 significant, 3 violent, 11 killer) |- | 1938 Bakerville, Missouri tornado outbreak March 15, 1938 Mississippi Valley - 24 fatalities, 200 injuries (14 significant, 2 violent, 6 killer) |- | Late-March 1938 tornado outbreak March 30 - 31, 1938 Southern Plains - Mississippi Valley - 40 fatalities, 548 injuries (26 significant, 3 violent, 9 killer) |- | 1938 Oshkosh, Nebraska tornado outbreak April 26, 1938 Great Plains - 6 fatalities, 39 injuries Oshkosh completely destroyed killing students at leveled school (8 significant, 2 violent, 2 killer) |- | 1938 Charleston, South Carolina tornadoes September 29, 1938 South Carolina - 32 fatalities, 100 injuries (2 killers) |- | April 1939 tornado outbreak sequence April 14 - 17, 1939 Great Plains - Mississippi Valley - 57 fatalities, 316 injuries (25 significant, 3 violent, 11 killer) |- |}

1940–1949

{| class="wikitable" width="100%" !Event !Date !Area !Tornadoes !Casualties !Notes |- | February 1942 tornado outbreak February 5 - 6, 1942 Southeast - 22 fatalities, 330 injuries (22 significant, 9 killer) |- | March 1942 tornado outbreak March 16, 1942 Central - Southern U.S. - 148 fatalities, ≥1284 injuries (26 significant, 5 violent, 18 killer) |- | April-May 1942 tornado outbreak sequence April 27 - 30 & May 2, 1942 Great Plains - 123 fatalities, ≥839 injuries (20 significant, 11 violent, 17 killer) |- | May 1943 tornado outbreak May 15, 1943 Great Plains - ≥6 fatalities, ≥222 injuries (21 significant, 4 violent, 2 killer) |- | January 1944 Oklahoma tornado outbreak January 26. 1944 Southern Great Plains - 2 fatalities, 40 injuries (8 significant, 2 killer) |- | 1944 Appalachians tornado outbreak June 22 - 23, 1944 Great Lakes - Mid-Atlantic - 163 fatalities, ≥1044 injuries (≥9 significant, 4 violent, 7 killer) |- | April 1945 tornado outbreak April 12, 1945 - - 128 fatalities, 1001 injuries (17 significant, 5 violent, 10 killer) |- | 1946 Windsor-Tecumseh, Ontario tornado June 17, 1946 River Rouge, Michigan, Windsor, Ontario - 17 dead, dozens injured Third-deadliest in Canadian history, formed in River Rouge, Michigan |- | January 1947 tornado outbreak January 29 - 30, 1947 Mississippi Valley - Southeast - 8 fatalities, 155 injuries (15 significant, 1 violent, 5 killer) |- | 1947 Glazier-Higgins-Woodward tornadoes April 9 - 10, 1947 Southern Great Plains - 181 fatalities, 980 injuries (8 significant, 2 violent, 1 killer) |- | 1947 New Year's Eve tornado outbreak December 31, 1947 Southern U.S. - 20 fatalities, 256 injuries (7 significant, 1 violent, 3 killer) |- | 1948 Alton-Bunker Hill-Gillespie tornado outbreak March 18 - 19, 1948 Great Plains - Middle Mississippi Valley - 43 fatalities, ≥566 injuries (25 significant, 3 violent, 5 killer) |- | 1948 Tinker Air Force Base tornadoes March 20 and March 25, 1948 Oklahoma City - First successful tornado prediction in history. |- | Late-March 1948 tornado outbreak March 25 - March 27, 1948 Central United States - 37 fatalities, 321 injuries (19 significant, 3 violent, 5 killer) |- | 1949 Warren, Arkansas tornado outbreak January 3, 1949 South Central U.S. - 60 fatalities, 504 injuries (12 significant, 1 violent, 5 killer) |- | May 1949 tornado outbreak May 20 - 21, 1949 Central - Southeastern United States - ≥56 fatalities, ≥552 injuries Perhaps 2nd most intense known outbreak (≥29 significant, ≥5 violent, ≥2 killer) |- | October 1949 tornado outbreak October 9 - 10, 1949 Great Plains - 2 fatalities, 6 injuries (11 significant, 2 killer) |- |}

1950–1959

{| class="wikitable" width="100%" !Event !Date !Area !Tornadoes !Casualties !Notes |- | 1952 Arkansas-Tennessee tornado outbreak March 21 - 22, 1952 Lower-Middle Mississippi Valley - 208 fatalities (19 significant, 8 violent, 13 killer) |- | April - May 1953 tornado outbreak sequence April 28 - May 2, 1953 Southeastern United States - 37 fatalities, 366 injuries (17 significant, 5 violent, 9 killer) |- | 1953 Waco tornado outbreak May 9 - 11, 1953 Southern-Central Great Plains / Upper Mississippi Valley 33 144 fatalities, 903 injuries Waco Tornado occurred during Texan outbreak of May 11 (19 significant, 6 violent, 7 killer), tied for deadliest in Texas history and 10th deadliest in United States |- | Flint-Worcester tornado outbreak sequence June 7 - 9, 1953 Central Great Plains - Great Lakes - New England 48 247 fatalities Flint-Beecher tornado last 100-fatality single tornado in US history (11 significant, 1 violent killer on 7th; 10 significant, 4 violent, 8 killer on 8th; 3 significant, 1 violent killer on 9th; 24 significant, 6 violent, 10 killer for sequence) |- | 1953 Vicksburg, Mississippi tornado outbreak December 5, 1953 Louisiana - Mississippi - 38 fatalities (4 significant, 1 violent killer) |- | 1955 Commerce Landing, Mississippi tornado outbreak February 1, 1955 Mississippi - Alabama - 23 fatalities 23 killed at school in Commerce Landing, MS (>2 significant) |- | 1955 Great Plains tornado outbreak May 25 - 26, 1955 Great Plains - Midwest - Mississippi Valley 47 102 fatalities Last 75 fatality single tornado in the U.S. (8 significant, 3 violent, 3 killer) |- | February 1956 tornado outbreak February 24 - 25, 1956 Central United States - 6 fatalities (14 significant, 2 violent killers) |- | April 1956 tornado outbreak April 2 - 3, 1956 Central United States - 40 fatalities (33 significant, 7 violent, 8 killer) |- | April 1956 Birmingham tornado April 15, 1956 Alabama 1 25 fatalities (1 violent killer) |- | April 1957 Dallas tornado outbreak April 2, 1957 Texas - Oklahoma 28 17 fatalities (16 significant, 2 violent, 5 killer) |- | April 1957 Southeastern tornado outbreak April 8, 1957 Alabama - Georgia - North Carolina - South Carolina - Tennessee - Virginia 15 4 fatalities (6 significant, 1 violent, 1 killer) |- | 1957 Lubbock tornado outbreak April 21, 1957 Texas - 0 fatalities (4 significant, 2 violent) |- | 1957 Silverton, Texas tornado outbreak May 15, 1957 Texas - 21 fatalities (6 significant, 1 violent, 2 killer) |- | May 1957 Central Plains tornado outbreak May 19 - 21, 1957 Central Great Plains - Middle-Upper Mississippi Valley - 59 fatalities (32 significant, 4 violent, 3 killer) |- | May 1957 Mid-South tornado outbreak May 24, 1957 New Mexico and southern Great Plains - 4 fatalities (10 significant, 1 violent, 1 killer) |- | 1957 Fargo tornado June 20, 1957 Northern Great Plains - 11 fatalities (4 significant, 2 violent, 2 killer) |- | November 1957 tornado outbreak November 7 - 8, 1957 Southeastern United States 20 12 fatalities (12 significant, 1 violent, 5 killer) |- | 1957 Murphysburo, Illinois tornado outbreak December 18, 1957 Missouri - Illinois 23 17 fatalities (18 significant, 3 violent, 5 killer) |- | 1958 Colfax, Wisconsin tornado outbreak June 4, 1958 Minnesota - Wisconsin - 28 fatalities (6 significant, 3 violent killers) |- | November 1958 tornado outbreak November 17, 1958 Southern U.S. - Great Plains 34 0 fatalities (16 significant) |- | 1959 St. Louis tornado outbreak February 10, 1959 Middle Mississippi Valley - 21 fatalities Destructive tornado in downtown St. Louis (7 significant, 1 violent killer) |- | May 1959 tornado outbreak May 4 - 5, 1959 Central United States 49 0 fatalities (8 significant) |- |}

1960–1969

{| class="wikitable" width="100%" !Event !Date !Area !Tornadoes !Casualties !Notes |- | May 1960 tornado outbreak May 5 - 6, 1960 Southern Great Plains - 33 fatalities (25 significant, 4 violent, 8 killer) |- | Hurricane Carla September 1961 Southern U.S. 8 - 1 F0, 6 F1's, 8 F2's, 7 F3's 2 Killer, 1 F4 Killer Tornado |- | 1964 Michigan tornado May 8, 1964 Metro Detroit - 13 dead, 224 injured F4 tornado strikes suburban areas of Metro Detroit, Michigan |- | 1964 Wichita Falls Tornado April 3, 1964 Wichita Falls, Texas - 7 dead, 100+ injured First tornado ever captured on live television |- | 1965 Palm Sunday tornado outbreak April 11 - 12, 1965 Central United States 51 256 fatalities Among most intense recorded outbreaks (38 significant, 19 violent, 21 killer) |- | 1965 Twin Cities tornado outbreak May 6, 1965 Minnesota - 13 fatalities (2 significant, 4 violent, 4 killer) |- | Late-May 1965 tornado outbreak May 25 - 26, 1965 Great Plains 51 0 fatalities (9 significant) |- | Candlestick Park tornado - Jackson, MS March 3, 1966 Mississippi - Alabama - 58 dead, 508 injured 202.5 mile path - 1 of only 3 F5 storms in Mississippi history |- | 1966 Topeka tornado June 8 - 9, 1966 Kansas - Illinois - 18 fatalities (5 significant, 2 violent, 3 killer) |- | 1967 St. Louis tornado outbreak January 24, 1967 Midwest - 7 fatalities (18 significant, 2 violent, 4 killer) |- | Belvidere - Oak Lawn tornado outbreak April 21, 1967 Midwest 45 58 fatalities Large school and traffic death tolls (20 significant, 4 violent, 3 killer) |- |1967 Southern Minnesota tornado outbreak April 30, 1967 Minnesota 9 13 fatalities Only one tornado below F2 strength |- | Hurricane Beulah September 19 - 23, 1967 Texas - Mexico >115 5 fatalities |- | 1968 Wheelersburg, Ohio tornado outbreak April 23, 1968 Ohio Valley - 14 fatalities (7 significant, 3 violent killers) |- | May 1968 tornado outbreak May 15 - 16, 1968 Mississippi Valley 46 74 fatalities (20 significant, 4 violent (including two F5's), 8 killer) |- | 1968 Tracy tornado June 13, 1968 Minnesota - 9 fatalities F5 tornado killed 9 and injured 150 in Tracy, Minnesota |- |1969 Georgia tornado April 4, 1969 Georgia - About 50 Injures |- | 1969 Minnesota tornado outbreak August 6, 1969 Minnesota 13 15 fatalities, 109 injuries (1 violent, 8 significant, 3 killers ) |- | August 1969 Cincinnati tornado outbreak August 9, 1969 Indiana - Ohio - 4 fatalities (2 significant) |- | 1969 Hazelhurst, Mississippi tornado outbreak January 23, 1969 Southeastern United States - 32 fatalities (2 significant, 1 violent killer) |- |}

1970–1979

{| class="wikitable" width="100%" !Event !Date !Area !Tornadoes !Casualties !Notes |- | April 1970 tornado outbreak April 17 - 18, 1970 Southern Great Plains 15 23 fatalities (7 significant, 4 violent, 3 killer) |- | 1970 Lubbock tornado May 11, 1970 West Texas - 28 fatalities (1 violent killer) |- | February 1971 Mississippi Valley tornado outbreak February 21, 1971 Southern Mississippi Valley 14 119 fatalities (4 violent, 5 significant, 4 killer) |- | 1971 Springfield, Missouri tornado outbreak December 14 - 15, 1971 Central United States 40 2 fatalities (10 significant, 2 killer) |- | 1972 Portland-Vancouver tornado April 5, 1972 Pacific Northwest 4 6 fatalities 4 strong tornadoes, deadliest in West Coast history |- | March 1973 Georgia-South Carolina tornado outbreak March 31, 1973 Georgia - South Carolina 3 10 fatalities Extremely destructive tornadoes, costliest natural disaster in Georgia history (3 violent killers) |- | May 1973 tornado outbreak May 26 - 29, 1973 Southern U.S. 99 22 fatalities (26 significant, 3 violent, 8 killer) |- | April 1-2 1974 tornado outbreak April 1 - 2, 1974 Southern U.S. - Mississippi Valley 23 4 fatalities Outbreak ended only 17 hours before Super Outbreak began in same areas (10 significant, 3 violent, 4 killer) |- | Super Outbreak April 3 - 4, 1974 Eastern United States - Ontario 148 315 fatalities Largest and most intense recorded outbreak (95 significant, 30 violent (6 F5), 49 killer) |- | June 1974 Great Plains tornado outbreak June 8, 1974 Southern U.S. Plains 39 22 Fatalities (22 Significant, 4 Violent, 4 Killer) |- | Great Storm of 1975 January 9 - 12, 1975 Southeastern United States 45 12 fatalities (10 significant, 1 violent, 4 killer) |- | 1975 Omaha tornado May 6, 1975 Northern Great Plains 12 3 fatalities (6 significant, 2 violent, 1 killer) |- | 1975 Canton, Illinois tornado July 23, 1975 Illinois - 2 fatalities |- | March 1976 tornado outbreak March 20 - 21, 1976 Mississippi Valley 66 3 fatalities (18 significant, 3 violent, 3 killer) |- | April 1977 Birmingham tornado April 4, 1977 Southeastern United States 15 22 fatalities (1 violent, 4 significant, 1 killer) F5 tornado strikes northern Birmingham. Outbreak extends from MS to NC. |- | 1978 Sarasota, Florida tornadoes May 4, 1978 Florida - 3 fatalities (2 significant, 1 killer) |- | Bossier City, Louisiana tornado December 2 - December 3, 1978 Southern Great Plains - Southern U.S. - 2 fatalities Occurred at 1:52 AM leaving little warning as most were asleep |- | 1979 Red River Valley tornado outbreak April 10 - 11, 1979 Southern Great Plains - Southeastern United States - 56 fatalities Wichita Falls Tornado on 10th (28 significant, 2 violent, 5 killer) |- | Windsor Locks, Connecticut tornado October 3, 1979 New England - 3 fatalities (2 significant, 1 violent killer) |- |}

1980–1989

{| class="wikitable" width="100%" !Event !Date !Area !Tornadoes !Casualties !Notes |- | April 1980 Central United States tornado outbreak April 7 - 8, 1980 Central United States - 3 fatalities (30 significant) |- | Vandergrift PA Tornado of June 1980 June 3, 1980 Mid Atlantic 4 0 fatalities (1 Violent, 3 Significant; F4 Tornado strikes Vandergrift PA with 140 Injuries 159 Injuries Total) |– |1980 Grand Island tornado outbreak June 2 - 3, 1980 Central - Eastern United States - 6 fatalities (15 significant, 1 violent, 3 killer; best known for forming three rare anticyclonic tornadoes in one system) |- | Hurricane Allen August 1980 Mexico - Texas ≥29 - Costliest tropical cyclone related tornado in history struck Austin vicinity |- | April 4, 1981, West Bend tornado April 4 Wisconsin 1 3 fatalities One of the strongest Anticyclonic tornadoes on record, rated F4. |- | May 1981 tornado outbreak May 22 - 23, 1981 Great Plains 43 0 fatalities (14 significant, 1 violent) |- | April 1982 tornado outbreak April 2 - 3, 1982 Southern Plains - Mississippi Valley 61 29 fatalities (24 significant, 4 violent, 10 killer) |- | May 1982 tornado outbreak May 11 - 12, 1982 Texas - Oklahoma 70 2 fatalities (14 significant) |- | Marion, Illinois tornado outbreak May 29, 1982 Illinois - 10 fatalities (2 significant, 1 violent killer) |- | Early-December 1982 tornado outbreak December 2 - 3, 1982 Lower-Middle Mississippi Valley - 4 fatalities (16 significant) |- | Christmas 1982 tornado outbreak December 23 - 25, 1982 Central - Southeastern United States - 3 fatalities (18 significant) |- | Early-May 1983 tornado outbreak May 1 - 2, 1983 Mississippi Valley - Great Lakes 63 7 fatalities, 110+ injured (NE, AR, IA, IL, IN, KY, MI, MO, NY, OH, PA. $200M in damage, OH and Western NY hardest hit ) |- | Mid-May 1983 tornado outbreak May 18 - 20, 1983 Southeastern United States 48 6 fatalities (10 significant, 6 killer) |- | 1984 Carolinas tornado outbreak March 28, 1984 Carolinas 24 57 fatalities, 1200+ injuries 11 of 13 very large tornadoes produced by one supercell generated F3/F4 damage; 2 F4's left damage paths 2 miles wide. (19 significant, 7 violent, 10 killer) |- | 1984 Philipp-Water Valley, Mississippi tornado outbreak April 21, 1984 Southeastern United States - 15 fatalities (3 significant) |- | 1984 Morris, Oklahoma tornado outbreak April 26 - 27, 1984 Great Plains - Mississippi Valley - 16 fatalities (20 significant, 8 killer) |- | 1984 Mannford-New Prue, Oklahoma tornado outbreak April 29, 1984 Central United States 42 1 fatality (4 significant, 1 violent killer) |- | May 1984 tornado outbreak May 2 - 3, 1984 Southeastern United States 60 5 fatalities (15 significant) |- | 1984 Barneveld, Wisconsin tornado outbreak June 7 - 8, 1984 Central United States 45 13 fatalities (26 significant, 2 violent, 4 killer) |- | 1985 United States-Canadian tornado outbreak May 31, 1985 U.S. - Canadian Eastern Great Lakes - ≥88 fatalities Among most intense outbreaks recorded, largest recorded outbreak in the region (≥20 significant, 9 violent, ≥10 killer) |- | Hurricane Danny August 1985 Southeastern United States 39 |- | Saragosa, Texas tornado May 22, 1987 West Texas - 30 fatalities (1 violent killer) |- | 1987 Arklatex tornado outbreak November 15-16, 1987 Southeastern United States 50 11 Fatalities |- | 1987 West Memphis, Arkansas tornado December 14, 1987 Arkansas - Tennessee - 6 dead, 100 injured Rated F3 |- | May 1988 tornado outbreak May 8, 1988 Midwest 57 0 fatalities (8 significant) |- | Hurricane Gilbert September 1988 Central - North America ≥29 - |- | November 1988 tornado outbreaks November 4 - 5, 15, 19 - 20, 28, 1988 Central - Eastern United States - 14 fatalities 44 tornadoes on Nov. 15, Raleigh Tornado on Nov. 28 {29 significant, 6 killer, 1 violent} |- | May 1989 tornado outbreak May 5, 1989 Mid-Atlantic - Southeast U.S. - 7 fatalities (9 significant, 3 violent, 3 killer) |- | 1989 Northeastern United States tornado outbreak July 10, 1989 Northeastern United States 16 0 fatalities, 142 injured (6 significant, 2 violent (F4), 0 killer) |- | November 1989 tornado outbreak November 15-16, 1989 Southeastern United States and Mid-Atlantic States 40 30 fatalities (9 significant, 1 violent killer) |- |}

1990–1999

{| class="wikitable" width="100%" !Event !Date !Area !Tornadoes !Casualties !Notes |- | March 1990 Central US tornado outbreak March 13, 1990 Central United States 59 2 fatalities (26 significant, 4 violent, 2 killer) |- | June 1990 Lower Ohio Valley tornado outbreak June 2 - 3, 1990 Central United States 66 9 fatalities (27 significant, 7 violent, 4 killer) |- | 1990 Plainfield tornado August 28, 1990 Northeastern Illinois 3 29 fatalities Strongest August tornado (1 violent killer) |- | 1991 Andover, Kansas tornado outbreak April 26 - 27, 1991 Central-Southern Great Plains 58 21 fatalities (32 significant, 5 violent, 5 killer) |- | May 1991 Central Plains tornado outbreak May 16, 1991 Central Great Plains 46 0 fatalities (4 significant) |- | Mid-June 1992 tornado outbreak June 15 - 16, 1992 Central United States 123 1 fatality (27 significant, 4 violent, 1 killer) |- | November 1992 tornado outbreak November 21 - 23, 1992 Southern - Eastern United States 95 26 fatalities (43 significant, 5 violent, 9 killer) |- | 1993 Catoosa, Oklahoma tornado outbreak April 24, 1993 Oklahoma - 7 fatalities (1 violent killer) |- | 1993 Virginia tornado outbreak August 6, 1993 Virginia 18 4 fatalities Largest tornado outbreak in Virginia history (2 violent) |- | 1994 Palm Sunday tornado outbreak March 27, 1994 Southeastern United States 27 40 fatalities (2 violent, 13 significant, 5 killer) |- | April 1994 tornado outbreak April 25 - 27, 1994 Southern Great Plains - Midwest >67 6 fatalities (2 violent, 13 significant) |- | June 1994 tornado outbreak June 26 - 27, 1994 - 62 2 fatalities (11 significant) |- | May 1995 Tornado Outbreak Sequence May 1995 Central United States >80 >4 fatalities May 6–7, 8, 9, 13–14, 18–19, 27, 29 |- | May 1995 Great Barrington Tornado May 29, 1995 Eastern New YorkWestern Massachusetts 4 fatalities |- | April 1996 Tornado Outbreak Sequence April 19 - 22, 1996 Texas - Arkansas - Illinois - Indiana - Ontario >70 - |- | Oakfield Tornado July 18, 1996 Wisconsin 12 1 fatality One violent (F5), one deadly significant, ten minor |- | Late-October 1996 tornado outbreak October 26, 1996 West North Central States 26 11 injuries Unusual late-season outbreak in Minnesota, South Dakota and Nebraska |- | 1997 Benton, Arkansas tornado outbreak March 1, 1997 Mississippi Valley - Ohio Valley 56 26 fatalities (18 violent, 16 significant, 5 killers) |- | 1997 Miami tornado May 12, 1997 Miami, Florida - - |- | 1997 Central Texas tornado outbreak May 27, 1997 Texas 19 27 fatalities Jarrell, Texas (5 violent, 2 killers) |- | 1997 Southeast Michigan tornado outbreak July 2, 1997 Southeast Michigan - Southwestern Ontario 13 7 fatalities One tornado passed through some Detroit neighborhoods, the suburbs of Hamtramck, and Highland Park. One also touched down near Windsor, Ontario |- | 1998 Kissimmee tornado outbreak February 22 - 23, 1998 Florida 11 42 fatalities (3 violent, 4 killers) |- | 1998 Gainesville-Stoneville tornado outbreak March 20, 1998 Georgia to Virginia 12 14 fatalities (5 significant, 2 violent, 2 killers) |- | 1998 Comfrey – St. Peter tornado outbreak March 29, 1998 Southern Minnesota 14 2 fatalities, 36 injuries Earliest tornado outbreak in Minnesota history |- | April 1998 Birmingham tornado April 8, 1998 Metropolitan area of Birmingham, Alabama, also Georgia, Louisiana, Tennessee 11 39 fatalities (2 violent, 5 significant, 3 killers) |- | 1998 Nashville tornado outbreak April 16, 1998 Southeastern United States 10 ≥4 fatalities Passed through downtown Nashville |- | Spencer tornado May 30, 1998 South Dakota - 6 fatalities |- | New York tornado outbreak May 31, 1998 NY, NJ, PA, VT 35 1 fatality, 109 injuries $83M in damage |- | 1998 Eastern tornado outbreak June 2, 1998 NY to SC 49 2 fatalities, 80 injuries $42M in damage |- | August 23, 1998 Upper Great Lakes Severe Weather Outbreak August 23, 1998 Wisconsin, Michigan - 1 fatality (non-tornadic) Spawned the Door County Tornado, 8th costliest in Wisconsin History |- | 1998 Lynbrook tornado September 7, 1998 Long Island, NY - 1 fatality During the Labor Day Derecho Event |- | January 1999 tornado outbreak sequence January 17 - 22, 1999 Arkansas Tennessee Mississippi >100 16 Two tornado outbreaks. January 17 and another one on January 21-22. Arkansas and western Tennessee raked by strong and killer tornadoes. |- | Easter weekend 1999 tornado outbreak April 3, 1999 Southern Plains 24 7 fatalities |- | April 1999 Cincinnati tornado April 8-9, 1999 Ohio Valley/Midwest 54 6 Fatalities (12 significant, 3 violent, 3 killers) |- | 1999 Oklahoma tornado outbreak May 3, 1999 Southern Great Plains 66 46 fatalities, 665 injuries First tornado to incur $1 billion in (non-normalized) damages |- | 1999 Linden, Tennessee tornado May 5, 1999 Tennessee 1 3 Fatalities F4 Tornado |- | 1999 Salt Lake City tornado August 11, 1999 Utah 1 1 fatality F2 Tornado; First known casualty in a Utah Tornado |- |}

2000–2009

{| class="wikitable" width="100%" !Event !Date !Area !Tornadoes !Casualties !Notes |- | 2000 Southwest Georgia tornado outbreak February 13 - 14, 2000 Georgia 4 19 fatalities Substantial damage to neighborhoods south of Camilla, Georgia, and north of Meigs, Georgia. |- | 2000 Fort Worth tornado March 28, 2000 U.S. South 10 4 fatalities |- | December 2000 Tuscaloosa tornado December 16, 2000 Southern United States 24 12 fatalities Tuscaloosa tornado caught live via Tower Cam (1 violent, 10 significant, 2 killer) |- | June 18, 2001, tornado outbreak June 18, 2001 Iowa, Nebraska, Minnesota, Wisconsin 5 3 fatalities, 16 injuries An F3 tornado killed 3 in Siren, Wisconsin and caused an estimated 10 million USD in damage. |- | 2001 Myrtle Beach tornadoes July 6, 2001 Myrtle Beach, South Carolina 2 39 injuries Two tornadoes of F1 and F2 strength passed through the area and along the beach |- | 2001 Maryland, Virginia, and Washington, D.C. tornado outbreak September 24, 2001 - 9 2 fatalities, 57 injuries Multi-vortex F3 tornado passed through the University of Maryland campus (2 violent, 1 killer) |- | North Central Indiana-Michigan tornado outbreak October 24, 2001 Central United States 25 2 fatalities |- | Arkansas-Mississippi-Alabama tornado outbreak November 23 - 24, 2001 Southeast U.S. 67 13 fatalities |- | 2002 Midwest to Mid-Atlantic United States tornado outbreak April 27 - 28, 2002 Midwest to Mid-Atlantic U.S. 49 6 fatalities (7 violent, 10 significant, 2 killers) |- | 2002 Veterans Day Weekend tornado outbreak November 9 - 11, 2002 Southeastern United States - Ohio Valley ≥75 36 fatalities |- | May 2003 tornado outbreak sequence May 3 - 11, 2003 - 401 48 fatalities List of May 2003 tornado outbreak sequence tornadoes |- | 2003 South Dakota tornado outbreak June 24, 2003 South Dakota 63 0 fatalities Tied U.S. record for most tornadoes in one state during a 24-hour period.»NWS Sioux Falls, SD
See also: List of 2003 South Dakota tornado outbreak tornadoes |- | 2003 Northeast tornado outbreak July 21, 2003 OH, PA, NY, VT 20 8 injuries $48M in damage. Tornadoes occurred in supercells embedded in a very intense derecho. |- | April 2004 Utica tornado outbreak April 20, 2004 Illinois - Indiana 30 9 fatalities |- | May 2004 tornado outbreak sequence May 21 - May 31, 2004 Great Plains - Midwest 385 7 fatalities Widest recorded tornado (2.5 mi 4 km), second largest 2-day outbreak in history
See also: List of May 2004 tornado outbreak sequence tornadoes |- | 2004 Roanoke, Illinois tornado July 13, 2004 Central Illinois - 0 fatalities (1 violent) |- | Hurricane Frances September 2004 Eastern United States 103 - 72 F0's, 25 F1's, 5 F2's, 1 F3's
See also: Hurricane Frances tornado outbreak |- | Hurricane Ivan September 2004 Eastern United States 117 - 57 F0's, 59 F1's, 18 F2's 1 F3
See also: Hurricane Ivan tornado outbreak |- | Hurricane Cindy July 6 - 8, 2005 Southeastern - Eastern United States 44 0 fatalities See also: Hurricane Cindy (2005) tornado outbreak |- | August 2005 Wisconsin tornado outbreak August 18, 2005 Wisconsin - Minnesota - 1 fatality |- | Hurricane Katrina August 26 - 31, 2005 Southeastern - Eastern United States 44 1 fatality See also: Hurricane Katrina tornado outbreak |- | Hurricane Rita September 2005 U.S. South 101 1 fatality |- | Evansville Tornado of November 2005 November 5 - 6, 2005 Middle Mississippi - Ohio Valley 7 25 fatalities All fatalities caused by a single F3 |- | November 2005 Iowa tornado outbreak November 12, 2005 Iowa - Missouri - 1 fatality |- | Mid-November 2005 tornado outbreak November 15, 2005 Central - Southeastern United States 50 - |- | Late-November 2005 Tornado Outbreak November 27 - 28, 2005 Central - Southeastern United States 46 1 fatality |- | March 2006 Tornado Outbreak Sequence March 9 - 13, 2006 Central United States 105 11 fatalities One tornado lasted over 2 hours. One supercell lasted over 17 hours and crossed 5 states. |- | April 2, 2006 Central United States tornado outbreak April 2, 2006 Central United States - 26 fatalities 2 others killed by non-tornadic storms |- | April 6–8, 2006 Tornado Outbreak April 6 - 8, 2006 Central - Southeastern United States - 11 fatalities At least 1 indirect fatality |- | Easter Week 2006 tornado outbreak sequence April 13 - 19, 2006 Midwestern United States - 1 fatality |- | May 2006 North Texas tornado May 9, 2006 North Texas - Oklahoma - 3 fatalities At least seven tornadoes |- | July 2006 Westchester County tornado July 12, 2006 Southern New York and Fairfield, Connecticut - 6 Injuries Rare F2 tornado in Westchester County, New York |- | Late–September 2006 tornado outbreak September 21 - 23, 2006 Central United States 41 0 |- | Mid-November 2006 tornado outbreak November, 2006 North Carolina, Louisiana - 9 fatalities |- | 2007 Central Florida tornadoes February 2, 2007 Florida 3 20 fatalities 3 confirmed tornadoes |- | February–March 2007 tornado outbreak February 28 - March 1, 2007 Kansas, Missouri, Alabama, Georgia 49 20 fatalities Enterprise, Alabama, high school hit by tornado |- | Late-March 2007 tornado outbreak March 28 - March 31, 2007
Texas, Oklahoma, Nebraska, Kansas, Colorado 80 confirmed 4 fatalities
|- | 2007 Piedras Negras-Eagle Pass tornadoes April 24, 2007 Texas (United States), Coahuila (Mexico) Nebraska, Colorado - 13 fatalities See also: List of tornadoes from the Late-April 2007 tornado outbreak sequence |- | May 2007 tornado outbreak May 3 - May 5, 2007 Kansas, Oklahoma, South Dakota, Colorado, Nebraska, Illinois 123 confirmed 10 fatalities Greensburg, Kansas devastated by an EF5 tornado |- | Mid-October 2007 tornado outbreak October 17 - October 19, 2007 Midwest, Ohio Valley, Great Lakes, U.S. South 64 confirmed 5 fatalities, numerous injuries |- | January 2008 tornado outbreak sequence January 7 - January 9, 2008
Southwest Missouri, northwest Arkansas, northeast Oklahoma, Midwest, U.S. South 71 confirmed 4 fatalities, several injuries
|- | 2008 Super Tuesday tornado outbreak February 5 - February 6, 2008 Tennessee, Kentucky, Arkansas, Mississippi, Alabama, Indiana, Texas 84 confirmed 59 fatalities, 200+ injuries Deadliest U.S. outbreak since 1985 United States-Canadian tornado outbreak on May 31, 1985 (5 violent, 9 killer) |- | 2008 Atlanta tornado outbreak March 14 - March 15, 2008 Alabama, Georgia, North Carolina, South Carolina 45 confirmed 3 fatalities Tornado hits downtown Atlanta for the first time in history. |- | May 1–2, 2008 tornado outbreak May 1 - May 3, 2008 Texas, Oklahoma, Kansas, Missouri, Iowa, Arkansas, Mississippi Alabama, Tennessee 62 Confirmed 6 fatalities |- | Mid-May 2008 tornado outbreak sequence May 7 - May 15, 2008 Oklahoma, Missouri 147 confirmed 26 fatalities An EF4 tornado killed 22 people in Oklahoma and Missouri
See also: List of Mid-May 2008 tornado outbreak sequence tornadoes |- | Late-May 2008 tornado outbreak sequence May 22 - May 25, 2008 Colorado, Kansas, Nebraska, Oklahoma, Wyoming, North Dakota, South Dakota, Minnesota, Iowa, Texas 234 confirmed 10 fatalities An EF5 tornado hits Parkersburg, Iowa.
See also: List of Late-May 2008 tornado outbreak sequence tornadoes |- | June 2008 tornado outbreak sequence June 3 - June 12 Illinois, Iowa, Nebraska, Kansas 136 confirmed, 250+ reported 6 fatalities Third series of widespread tornado outbreaks. Tornadoes hit the Omaha-Council Bluffs area and the Chicago area. An EF4 tornado also hits Manhattan, KS. See also : List of June 2008 tornado outbreak sequence tornadoes |- | February 2009 tornado outbreak Feb 10 - Feb 11, 2009 Oklahoma, Arkansas, Texas, Alabama, Mississippi, Georgia, Tennessee, Indiana 15 confirmed 8 fatalities An EF-4 hits Lone Grove, Oklahoma |- | April 2009 tornado outbreak April 9 - April 10 Oklahoma, Texas, Missouri, Arkansas, Louisiana, Mississippi Tennessee, Kentucky, Alabama, Georgia, South Carolina, North Carolina 111 reported, 66 confirmed5 fatalities An EF3 tornado hit the Mena, Arkansas area killing three people; an EF4 tornado hit Murfreesboro, Tennessee killing two people. |- | May 2009 Southern Midwest derecho May 8 Kansas, Missouri, Illinois, Kentucky, Tennessee, Virginia, North Carolina 39 confirmed 6 fatalities Most damage was caused by a derecho |}

Canada

{| class="wikitable" width="100%" !Event !Date !Area !Tornadoes !Casualties !Notes |- | Bouctouche, New Brunswick tornado August 6, 1879 Bouctouche, New Brunswick - 5 fatalities, 10 injured Easternmost violent tornado in North America |- | Late-May 1896 Tornado Outbreak May 24 - 25, 1896 Upper Mississippi Valley - Great Lakes (Ontario) - ≥79 fatalities, >215 injuries |- | St.Catharines Tornado September 26, 1898 Tonawanda,NY - Ontario and New York (Ontario) - ≥some fatalities, > many injuries |- | Regina Cyclone June 30, 1912 Saskatchewan - 28 fatalities Deadliest Canadian tornado |- | Windsor - Tecumseh, Ontario Tornado of 1946 June 17, 1946 Michigan - Ontario 1 ≈18 fatalities |- | Sudbury, Ontario Tornado August 20, 1970 Ontario, Canada - 6 fatalities 1 killer |- | Super Outbreak April 3 - 4, 1974 Eastern United States - Ontario 148 total, 1 in Canada 315 fatalities total, 9 in Canada Largest and most intense recorded outbreak; mostly impacted the United States, but one tornado occurred in Ontario. |- | Woodstock, Ontario Tornado of August 1979 August 7, 1979 Ontario - 2 fatalities Two F4s strike the City of Woodstock and surrounding farmland, at the same time. |- | 1985 United States-Canadian tornado outbreak May 31, 1985 U.S. - Canadian Eastern Great Lakes - ≥88 fatalities total, 12 in Canada Among most intense outbreaks recorded, largest recorded outbreak in the region (≥20 significant, 9 violent, ≥10 killer) |- | Edmonton Tornado July 31, 1987 Alberta - ≥27 fatalities, ≥300 injuries Most destructive Canadian tornado (≥1 violent killer) |- | Illinois-Ontario Tornado Outbreak Sequence April 19 - 22, 1996 Texas - Arkansas - Illinois - Indiana - Ontario >70 - Two F3's in southern Ontario

|- | Southeast Michigan Tornado Outbreak July 2, 1997 Southeast Michigan - Southwestern Ontario 13 7 fatalities One tornado passed through some Detroit neighborhoods, the suburbs of Hamtramck, and Highland Park. One also touched down near Windsor, Ontario |- | Pine Lake, Alberta Tornado July 14, 2000 Alberta - 12 fatalities |- | Elie, Manitoba Tornado June 22, 2007 Manitoba 8 0 fatalities First confirmed F5 tornado in Canada's history. |- | Central Ontario and GTA Tornado Outbreak, August 20 2009 August 20th 2009 Ontario 18 1 fatalities, numerous injuries Eighteen confirmed tornadoes struck cities and towns across southern sections of Central Ontario. Notably, significant damage (F2) and one death occurred at the town of Durham, while hundreds of homes were damaged and several destroyed by two F2 tornadoes that struck the city of Vaughan. |}

Mexico, Central America, and other areas

{| class="wikitable" width="100%" !Event !Date !Area !Tornadoes !Casualties !Notes |- | Hondo Coal Mine tornado May 10, 1899 Northern Mexico - ≥22 fatalities Deadliest Mexican tornado |- | 1940 Bejucal tornado December 26, 1940 Cuba - 12 fatalities Reportedly spawned during hurricane |- | 1953 Bermuda tornadoes April 5, 1953 Bermuda - 1 fatality, 9 injuries Possibly four separate tornadoes |- | 1992 Panama City tornado July 6, 1992 Panama City, Panama - 12 fatalities, >50 injuries Perhaps deadliest Panamanian tornado |- | Piedras Negras-Eagle Pass Tornado April 24, 2007 Piedras Negras, Coahuila, Mexico 1 10 fatalities 15 missing, 300 houses destroyed, 1,000 homeless |- | Dominican Republic tornadoes April 20, 2008 Santo Domingo - ≥2 fatalities At least 700 people were forced to seek temporary shelter when tornadoes damaged houses |- |}

See also

References

  • Grazulis, Thomas P. (1993). Significant Tornadoes 1680-1991, A Chronology and Analysis of Events. St. Johnsbury, VT: The Tornado Project of Environmental Films. ISBN 1-879362-03-1
  • --- (1997). Significant Tornadoes Update, 1992-1995. ISBN 1-879362-04-X
  • --- (2001). The Tornado: Nature's Ultimate Windstorm. Norman, OK: University of Oklahoma Press. ISBN 0-8061-3258-2
  • National Oceanic and Atmospheric Administration, National Climatic Data Center / Storm Prediction Center. Storm Data.

External links

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