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How tornadoes form - Markowski Research Group The mood in the newsroom was becoming increasingly grave. 1974 Super Outbreak - Wikipedia An F4 hit, A tornado outbreak produced several longtracked, deadly tornadoes that touched down in, Destructive outbreak produced two F3tornadoes in, Several destructive tornadoes touched down with all three F3+tornadoes being killers. James Spann Shares His Experience with the April 27th Generational A long-lived family of tornadoes, the strongest of which was rated F4, killed at least 30 people in, A destructive tornado, estimated to have been at F1 or F2strength, tore through. Both rising, spinning, warm air and sinking cool air are important for tornado formation. (25 significant, 3 violent, 5 killers). F2 caused major damage in the town of, Outbreak of mostly weak tornadoes, though a few were strong. Spann and his team quickly worked to create a plan before the afternoon storms developed. These include both tornadoes that formed Indiana but also those that crossed into the state. Anxiety and guilt. In the Southeast, one of those unforgettable dates is April 27. It's believed that the tornado touched down west of. At least 100 feared dead after tornadoes devastate midwestern US In Kossuth County Iowa (five farms and a home were swept away, leaving little trace) and Wisconsin. The tornado outbreak of April 27th broke numerous records: It was the second deadliest single tornado outbreak in American history (322 people died) It was the costliest tornado. The stories of the tornado database follow a timeline of how tornadoes have been better observed as we near the present day. It was the deadliest tornado outbreak in a generation. 2004 1,817 Alabama's Generational Tornado Outbreak Of April 27, 2011 We will continue to update this post as new data is released. 10 year later, while we still have a long way to go, numerous advances in weather technology and communications have occurred during the last decade to help us better prepare of the next outbreak including mobile weather alerts based on GPS and well as the implementation of dual polarization products on National Weather Services NEXRAD radar network. Small outbreak produced an F4 that struck, An F2 killed one person near Union, Arkansas. Devastating F3tornadoes struck, A very destructive outbreak of tornadoes hit the Southeast. The outbreak was caused by a vigorous upper-level trough that moved into the Southern Plains states on April 25. It was primarily used to aid in hurricane tracking, but with time has been integrated into severe weather forecasting. An EF3 tornado caused significant damage near, A significant tornado outbreak took place primarily across, Deadliest Mexican tornado, also struck the city of. This week marks a decade since the "Super Outbreak" of tornadoes April 25-28, 2011, an unprecedented swarm of tornadoes that tore through the South. (14significant, 2violent, 4killer), Very intense localized outbreak produced a long-tracked, killer F4 tornado that hit, Multiple large and destructive tornadoes touched down with killer F2-F4 tornadoes occurring in four states. There were a total of 36 EF2 tornadoes, 19 EF3s, 11 EF4s, and 4 very rare EF5s. (20 significant, 11 violent, 17 killers), 1944 South DakotaMinnesota tornado outbreak, An F5 tornado killed eight people in South Dakota and dissipated in Minnesota. They could have lived in Chilton County all their life and not know where the tornado is. "There arose a sudden gust at N.W. Radar Forecasts Rivers and Lakes Climate and Past Weather Local Programs These are the top tornado outbreaks for Indiana. There were no fatalities or serious injuries, but the storm did over a million dollars in damage. The 2016 data is expected imminently. Countless others were injured. And it was just the start of a long day ahead. Tornado Warnings went up in the Hudson Valley near New York City as a line of powerful storms moved through the East Coast on April 28, 2011. From April 3-4, 1974, there were 148 tornadoes confirmed in 13 U.S. states and the Canadian province of Ontario. I am looking for untold stories from the generational tornado outbreak in Alabama on April 27, 2011. Produced two powerful F5 tornadoes near, Outbreak produced many strong to violent tornadoes across the Ohio Valley. Strong tornadoes struck, Strong outbreak caused deadly tornadoes across the, Worst damage and all fatalities occurred in, Small but intense mid-Summer outbreak produced a long-tracked F3 that struck, Numerous strong tornadoes hit the Midwest, mostly in rural areas. The event occurred over the course of 4 days April 25-28, 2011 and 359 tornadoes touched. From a science perspective, the warning process for these severe local convective storms worked very well; the mean lead time for tornado warnings in the 4.27.11 NWS service . 316 fatalities were recorded on this date - 240 of those were from the state of Alabama alone that saw some of the most destructive and long-lived EF4 and EF5 tornadoes. This was later enhanced by shows such as Discoverys Storm Chasers. I need to know what is working. Other violent tornadoes killed numerous people in, Produced numerous killer tornadoes in Arkansas, including one that killed 25 people. Its about to get really rough here. . . Tornadoes prior to 1971 were rated retroactively. F4 struck, Violent tornadoes struck portions of the Great Plains, mainly in Oklahoma. The Palm Sunday outbreak in 1965 has been attributed to some of the growth in awareness. By the 1960s, numerical weather prediction by computer began. (>9 significant, 4 violent, 5 killer), Forty others were injured, seven homes were demolished and at least 25 others damaged, and monuments and tombstones in Cypress Hills and Bayside cemeteries were uprooted by a cyclone that touched down near Cypress Hills and moved through the neighborhoods of, The deadliest tornado outbreak sequence in American history. ess than one EF-5 tornado touches down in the U.S. each year, communication methods for severe weather are drastically different, technology related to severe weather has also significantly improved since 2011, California Consumer Limit the Use of My Sensitive Personal Information, California Consumer Do Not Sell or Share My Personal Information, This was the costliest and largest U.S. tornado outbreak on record, 360 tornadoes touched down over the four-day outbreak, The peak day of the outbreak occurred on April 27, when over people 300 died. so violent for half an hour as it blew down multitudes of trees. See how @NOAA #satellites tracked it from orbit and learn more about that historic outbreak, here: https://t.co/NbnaF2LmAV pic.twitter.com/CgnZzLp4qn. An F5 killed 23 people in Kansas. Spann knew it would be a long day. A total of 252 were kille. Tired of reading? An F3 tornado caused major damage in, Mid-summer outbreak produced several destructive tornadoes in Minnesota. After a quick update, Spann promised a swift return to regular programming, but his gut told him to hold the line. Ive never seen that before, said Spann, pointing to a computer-derived index used to gauge the likelihood of a tornado. 1965 31 Produced a violent F4 that literally wiped, $48M in damage. 1957 26 A few strong tornadoes did touch down, but none exceeded EF2 in intensity. I was in Jasper [a city about 35 miles northwest of Birmingham]. Deadliest tornado in Minnesota history. A particular destructive long-tracked EF3 tornado hit, This tornado outbreak produced multiple strong tornadoes throughout the Southern and Eastern United States. The first significant tornado of the outbreak occurred early on March 30, when an EF3 tornado struck, For the third straight week another tornado outbreak affected the same areas affected by the previous two outbreaks. This included an F2tornado caused heavy damage in, Produced several strong tornadoes, including a killer F4tornado that hit, A catastrophic F3tornado destroyed the northwest side of, A very active stretch of severe weather produced almost 200tornadoes. (4 significant), Destructive tornado outbreak occurred during the, Four destructive tornadoes hit South Florida, including an F2 tornado in, Very destructive tornado outbreak caused major damage in multiple states. It was the costliest tornado outbreak in U.S history with total damage reported at $10.2 billion (2011 USD). This outbreak sequence produced the widest tornado on record, a massive, A large severe weather event began with a few strong tornadoes in, A powerful and dynamic storm system produced a small but intense late-season tornado outbreak, mainly across, Many large and strong to violent tornadoes touched down across, A small outbreak of tornadoes occurred in association with a larger system on December 20-21. F3+ tornadoes occurred as far north as, One of the most intense outbreaks to hit the, Outbreal started in the Midwest, where only one known tornado was rated below F2 strength in Minnesota. Top Indiana Tornado Outbreaks - National Weather Service An F4 tornado devastated, Produced some of the most intense vegetation scouring ever documented. Thats sort of a hard combination.. In parts of Alabama and Mississippi, the scars from those tornadoes remain to this day. It uses GPS for more accurate locations and automatic positioning for spotters and chasers who relay information to those issuing warnings. An F3 tornado caused major damage near. Then a major F4 tornado hit Northport, killing 37 people along the 20 mile path. On April 27, 2011, one of the worst tornado outbreaks in U.S. history struck the Deep South. An F4 tornado killed two in, Active December produced three outbreaks with this being the second one. Produced strong tornadoes from Texas to North Carolina and into the Ohio Valley, including a long-track F4 tornado that impacted, A serial derecho on the south-side of the larger extratropical low produced several tornadoes including three ratedF2. Rare high-altitude F4 tore through parts of, Produced a series of strong tornadoes across Oklahoma, Texas, and Mississippi. At 2 p.m., Spann interrupted local programming and began a marathon of coverage that wouldnt end until the 11 p.m. news was through. The strongest tornado, which was rated EF4, hit, A major outbreak produced many strong tornadoes from the Great Lakes to the Gulf Coast just days after the previous one. weatherTAP.com - This week marks the 10 year anniversary | Facebook Remembering the April 27, 2011, tornado super outbreak - Washington Post April 2011 Tornado Super Outbreak: 17 Things That Shocked Us Most Was the second-deadliest tornado event in Florida, behind the outbreak of, Produced two EF2s that caused major damage and one fatality in, Produced several strong tornadoes, especially in, Numerous strong to violent tornadoes across the Midwest and South, including a destructive EF4 in, Produced a moderate outbreak of tornadoes across the South. A large tornado temporarily emptied the Ashley River and sank five warships lying offshore. Two tornadoes of F1 and F2 strength passed through the area, resulting in severe damage. An F4 tornado struck, Strong tornado caused three fatalities in a vehicle that was thrown near, Large outbreak sequence. (25 significant, 8 violent, 15 killer), Produced deadly, long-tracked F3+ tornadoes in Tennessee. Unfortunately, the harshly worded forecasts proved accurate. Twister also hit the scene in the 1990s. Long-track F4 tornado moved through. It was part of a period where at least one tornado touched down everyday between May14 and June25. First severe weather outbreak of meteorological spring produces I make my interns just walk into a Dollar General or a Walmart, and see if they can interact with the people in that Walmart. An F2 tornado killed one person in, Tornadoes touched down across several states in the, Many strong tornadoes touched down across the south, especially in, Widely photographed F1 tornado struck downtown, Produced a remarkably violent, deadly F5 tornado in, An F2 tornado passed through some Detroit neighborhoods, the suburbs of, Deadliest and most destructive Florida outbreak on record. 11 Feb 2023 15:50:45 10 years later: The April 27, 2011 tornado outbreak The generational tornado outbreak of April 27, 2011 was responsible for 62 tornadoes in the state of Alabama alone, which killed 252 people and injured countless others. He called out an on-air warning to his wife, but continued coverage without wavering. Continuing into the 4 th before a break and additional tornadoes, 114 twisters occurred in this part of a sequence during the week. customizable weather I saw the kidney-bean shape, I looked at [Jason Simpson], we shook our heads, and thought, Its go time. I dont think either one of us thought wed go back to programming for quite some time.. Maybe a once-in-a-career type day.. (7significant), The most prolific days were April23 and 25, when multiple long-tracked, large, and strong to violent tornadoes touched down, including five that traveled over 50 miles (80km). He wasnt done until the last tornado. Experiencing a super outbreak as a child with my radio gear helped me understand that were all just little cogs in this wheel, he explained. This week marks the 10 year anniversary of the generational tornado outbreak called the 2011 Super Outbreak. His house was hit by a tornado March 25 this year. An F5 tornado struck, Multiple strong tornadoes touched down, including a deadly, long-tracked F3 tornado in Arkansas and a destructive F2 tornado in, Large, early season outbreak caused numerous casualties. Additionally, an F2 tornado in, Tornado outbreak sequence April 28, 1964, Tornado outbreak sequence April 1214, 1964, Large outbreak produced multiple strong-to-violent tornadoes, including a longtracked F5 tornado killed four in, Four states were hit by tornadoes produced by Hurricane Hilda, including a violent F4 tornado that caused catastrophic destruction in, Hurricane Isbell generated one of the most prolific tornado outbreaks ever recorded in South Florida as nine short-lived, but destructive tornadoes hit the state. Caused 68 fatalities according to Grazulis. The following two tabs change content below. An early morning EF2 tornado hit near, A fall tornado outbreak caused major damage in the, A two-day tornado outbreak extending from, This small but devastating outbreak resulted in 25fatalities from three separate tornadoes in Tennessee, which were all produced by the same supercell that produced all 10tornadoes in the state from the outbreak. Several tornadoes touched down mostly in the, A derecho produced an outbreak of tornadoes across the, An intense late-season tornado outbreak affected northeastern Texas, southeastern Oklahoma, northwestern Louisiana, and western Arkansas on November 4. The first significant tornado of the Outbreak occurred on the evening of April 25, when a long track EF2 tornado tracked through Vilonia, Arkansas killing 4 people in the town. Hardest hit was the state of Alabama, where multiple EF5s and more than half a dozen EF4s carved deadly scars into the landscape. The moviewas undoubtedly a cause for increased storm chasing in the years and decades ahead. Entire communities were either partly or totally swept away in both states. Among contemporary meteorologists, this was considered one of the most intense tornadoes observed up to that time. An F2 struck, Produced multiple strong tornadoes across the South. Debris was carried 100mi (160km). document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. An F1 tornado killed three people and injured 166 others in, Fourth-most violent outbreak in U.S. since 1950 with 11 F4 tornadoes, most intense ever in, Moderate outbreak produced a large F4 tornado outside of, Several intense tornadoes touched down, including an F4 tornado in, Produced a devastating F4 tornado that killed 17 in Western, Produced five deadly F4 tornadoes across four states, including one that killed 18 on, Two F3tornadoes and an F4tornado touched down over a two-day period, causing catastrophic damage and several fatalities. 35 of the deaths were at the three story Grand Hotel, which was completely destroyed. (9 significant, 1 violent, 2 killer), One of the deadliest tornado outbreak sequences in US history. Four other F4s, including a long-tracked tornado family that killed 21 people in southern Indiana and northern Kentucky. See more of WxSynopsis on Facebook. The Palm Sunday outbreak in 1965 has been attributed to some of the growth in awareness. List of North American tornadoes and tornado outbreaks, Mexico, Central America, Caribbean, and other areas, Reshaping the Tornado Belt: The June 16, 1887, Grand Forks/East Grand Forks Tornado, 2011 book G.Godon, harvnb error: no target: CITEREFStorm_Data_Publication1954 (, harvnb error: no target: CITEREFStorm_Data_Publication1957 (, harvnb error: no target: CITEREFStorm_Data_Publication1964 (, harvnb error: no target: CITEREFStorm_Data_Publication1965 (, harvnb error: no target: CITEREFStorm_Data_Publication1966 (, "List of North American tornadoes and tornado outbreaks", Learn how and when to remove this template message, List of tornadoes striking downtown areas of large cities, List of tornadoes causing 100 or more deaths, September 1821 New England tornado outbreak, Tornado outbreak sequence of May 25June 1, 1917, Tornado outbreak sequence of May 410, 1933, Tornado outbreak sequence of June 2527, 1951, Great Lakes tornadoes of September 26, 1951, Tornado outbreak sequence of April 28 May 2, 1953, FlintWorcester tornado outbreak sequence, Tornado outbreak sequence of December 16, 1953, Tornado outbreak sequence of April 25, 1957, May 1957 Central Plains tornado outbreak sequence, June 2023, 1957 tornado outbreak sequence, Tornado outbreak sequence of December 1820, 1957, St. Louis tornado outbreak of February 1959, Tornado outbreak sequence of April 2330, 1961, Tornado outbreak sequence of May 39, 1961, Tornado outbreak sequence of May 14June 1, 1962, Tornado outbreak of April 30 May 2, 1967, tropical cyclone-related tornado outbreaks, Tornado outbreak sequence of April 1719, 1970, Tornado outbreak sequence of June 1016, 1970, Tornado outbreak sequence of April 1921, 1973, 1985 United StatesCanada tornado outbreak, 1989 Northeastern United States tornado outbreak, March 1990 Central United States tornado outbreak, June 1990 Lower Ohio Valley tornado outbreak, Tornado outbreak sequence of May 627, 1995, 1998 GainesvilleStoneville tornado outbreak, Late-May 1998 tornado outbreak and derecho, Upper Great Lakes severe weather outbreak of August 23, 1998, Derecho and tornado outbreak of July 21, 2003, List of May 2004 tornado outbreak sequence tornadoes, Evansville tornado outbreak of November 2005, Tornado outbreak sequence of March 913, 2006, Easter Week 2006 tornado outbreak sequence, Tornado outbreak of September 2123, 2006, Tornado outbreak of February 28 March 2, 2007, Tornado outbreak sequence of April 2027, 2007, Tornado outbreak sequence of January 711, 2008, Tornado outbreak sequence of May 715, 2008, List of tornadoes in the tornado outbreak sequence of May 715, 2008, Tornado outbreak sequence of May 2231, 2008, List of tornadoes in the tornado outbreak sequence of May 2231, 2008, Tornado outbreak sequence of June 311, 2008, February 2009 North American storm complex, Tornado outbreak of April 30 May 2, 2010, June 2010 Northern Plains tornado outbreak, October 2010 Arizona tornado outbreak and hailstorm, October 2010 North American storm complex, Derecho and tornado outbreak of April 45, 2011, Tornado outbreak sequence of April 1924, 2011, Tornado outbreak sequence of May 2126, 2011, Tornado outbreak sequence of March 1824, 2012, 2012 Tropical Storm Debby tornado outbreak, Late December 2012 North American storm complex, October 2013 North American storm complex, December 2013 North American storm complex, North Carolina tornado outbreak of April 2014, Tornado outbreak sequence of May 510, 2015, 2015 TexasOklahoma flood and tornado outbreak, December 2015 North American storm complex, Tornado outbreak sequence of May 2226, 2016, Tornado outbreak of February 28 March 1, 2017, Tornado outbreak and floods of April 28 May 1, 2017, Tornado outbreak sequence of May 1520, 2017, Tornado outbreak and blizzard of April 1315, 2018, 2018 United StatesCanada tornado outbreak, Tornado outbreak of November 30 December 2, 2018, Tornado outbreak sequence of March 2428, 2021, December 2021 Midwest derecho and tornado outbreak, List of Canadian tornadoes and tornado outbreaks, Southern Ontario tornado outbreak of 2005, Southern Ontario Tornado Outbreak of 2009, List of 21st-century Canadian tornadoes and tornado outbreaks, List of tornadoes striking downtown areas, "Arlington, MA Tornado, Aug 1851 - GenDisasters Genealogy in Tragedy, Disasters, Fires, Floods", "A Deadly Tornado Left A Wake Of Destruction Across Philadelphia And Camden On August 4, 1885 | Weather Concierge", "Long Island Felt Its Fury One Person Killed and Forty Injured in Woodhaven Buildings Blown Down and Damage Caused in Other Parts of the Island", "Most People Don't Know A Devastating Tornado Ripped Through New Jersey's State Capital Over 100 Years Ago", "Storm Events Database - Search Results | National Centers for Environmental Information", Events reported between 03/21/1952 and 03/22/1952 (2 days), National Centers for Environmental Information, Events reported between 03/12/1953 and 03/15/1953 (4 days), Events reported between 04/28/1953 and 05/02/1953 (5 days), "Tornado History Project: The Waco Outbreak", "Tornado History Project: The Flint - Worcester Outbreak", "Storm Events Database Search Results | National Centers for Environmental Information", Events reported between 12/05/1954 and 12/05/1954 (1 days), Events reported between 05/04/1960 and 05/06/1960 (3 days), "May 11, 1970 Tornadoes (Exclude Oregon)", "June 18-19, 1972 Tornadoes (Exclude Nebraska, South Dakota, Illinois, and Oklahoma)", "Tornado History Project: Maps and Statistics", "El Reno tornado is 'super rare' national record-breaker", "El Reno Tornado Rated EF3, Widest on Record", "Canadian National Tornado Database: Verified Events (1980-2009) - Public", "The Earliest Documented Tornado in the Americas", "Los Angeles Herald, Number 224, 12 May 1899", "Authorities assess tornado damage in Cuba - Prensa Latina", National Oceanic and Atmospheric Administration, North America listing by The Tornado Project, Central America and Caribbean listing by The Tornado Project, Deadly Skies: Canada's Most Destructive Tornadoes, https://en.wikipedia.org/w/index.php?title=List_of_North_American_tornadoes_and_tornado_outbreaks&oldid=1141917037, Articles with dead external links from June 2022, Articles with permanently dead external links, Short description is different from Wikidata, Articles needing additional references from June 2011, All articles needing additional references, Creative Commons Attribution-ShareAlike License 3.0, Essex County, MassachusettsHampton, New Hampshire tornado, Potential earliest recorded U.S. tornado and fatality. A look. This was followed a short time later by a tornado near Linden and Faunsdale. Third-deadliest continuous tornado outbreak in US history. Track the storms with us at weatherTAP.com using our exclusive RadarLab Studio ! The listing is U.S.-centric, with greater and more consistent information available for U.S. tornadoes. Hardest hit was. Feeling . Its victims (both people and cattle) were reportedly carried up to half a mile. 1880 West PrairieChristian County tornado. Your email address will not be published. Early morning tornado damaged or destroyed over 750 homes and businesses in Ciudad Acua. Estimated to have been an F4. A very violent F5 tornado killed 17 people in the, Large outbreak produced many strong to violent tornadoes, mainly across the Northern Plains states. On average, less than one EF-5 tornado touches down in the U.S. each year. While we have a good idea of the ceilings, with big years like 2011 and 2008 behind us, there is still much we dont know. This event also produced three EF1 tornadoes. Despite advancements, it is possible there are still many tornadoes that are not detected. But this thing happened on a Wednesday. Residents of northern Alabama, many of whom had been awakened by an early morning band of severe thunderstorms, huddled in safe rooms and storm shelters for much of the afternoon and evening amid a relentless onslaught of rotating thunderstorms. Its only back to 1950 that we have regular data, and even the early part of this history is highly incomplete. "This system is very organized and confidence is high regarding the potential for a major tornado outbreak.". Amid the emotional scars, Spann credits the 1974 outbreak for putting him on the path that has since shaped his career. But if you say theres a tornado at Jim Pit Barbecue, everyone knows where that is.. The EF-Scale also improved damage parameter descriptions. Localized outbreak produced a large EF4 that devastated the town of, Rare January outbreak produced strong tornadoes as far north as Wisconsin, where an EF3 tornado caused major damage in the town of, One of the deadliest modern outbreaks to hit, Strong tornado hit downtown Atlanta for the, Tornadoes struck the Midwest and South, including an EF3 that hit, A long-track EF4 tornado killed 21people in, Large outbreak produced strong to violent tornadoes across the Great Plains and Midwest. At least 300 homes were destroyed, some swept away. Two F4 tornadoes caused major damage in, Widely photographed and filmed F3 tornado struck, Produced several destructive tornadoes across the, April 1827, 1957 tornado outbreak sequence, Long-lived outbreak sequence produced numerous significant tornadoes. A total of 238 people lost their lives in Alabama alone. An F4 tornado tracked 82.7 miles (133.1km) through, Tornado outbreak sequence of April 79, 1965, Destructive outbreak sequence struck the US right before the, One catastrophic F4 tornado killed six and injured 200 in, Produced multiple strong tornadoes in the Great Plains, including an F3 tornado near, Third-deadliest tornado event in Florida, behind those of, Outbreak sequence produced a series of tornadoes across the, Unusually intense October outbreak spawned a deadly F5 tornado in, Los Angeles tornadoes of November 7, 1966, An extremely rare series of strong tornadoes struck Southern California with two F2 tornadoes striking, One of the most intense January outbreaks ever documented. Tornado Outbreak is an action-adventure video game developed by Loose Cannon Studios and published by Konami Digital Entertainment for the PlayStation 3, Wii and Xbox 360. This will be a day that will go down in state history and all we can do is pray for these people.. In the United States, tornadoes struck . Driving there, I take the roads less traveled, not the interstate. Tornadoes in the United States 1950-2019 These are some notable tornadoes, tornado outbreaks, and tornado outbreak sequences that have occurred in North America . The morning storms knocked out power to a half-million people and crippled the capabilities of ABC 33/40. Produced the second-widest tornado on record, a 2.5 mile-wide F4 that destroyed 95% of. EF3 tornadoes destroyed homes in and around, Following a significant outbreak just a week prior, a second tornado outbreak affected many of the same areas. Tornadoes devastated the. WxSynopsis - ****HISTORICAL/GENERATIONAL TORNADO OUTBREAK | Facebook Event was recorded by Massachusetts Bay Colony governor John Winthrop. Take the road where people live at, stop at a Dollar General, take time to talk to people. Spann is the chief meteorologist at ABC 33/40 in Birmingham. Josh on Twitter: "There is a threat of significant severe weather A tornado outbreak sequence, or tornado outbreak day sequence, sometimes referred to as an extended tornado outbreak, is a period of continuous or nearly continuous high tornado activity consisting of a series of tornado outbreaks over multiple days with no or very few days lacking tornado outbreaks.. Major tornado outbreak sequences occurred in the United States in May 1917, 1930, 1949, 1965 . There were 62 tornadoes in Alabama that day And so many places were affected other than. The game was later re-released on the Xbox Live Marketplace on December 6, 2011. As the science continues to become better and better, it is worth keeping in mind how quickly things have changed over the modern history.