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Process by which a tornado forms
Tornadogenesis is the process by which a tornado forms. There are many types of tornadoes, varying in methods of formation. Despite ongoing scientific
Tornadogenesis
Violently rotating column of air
distance from the radar. Some meteorological situations leading to tornadogenesis are not readily detectable by radar and tornado development may occasionally
Tornado
Cloud formation occurring at the base of a thunderstorm
tornadoes. Tornadogenesis is most likely when the wall cloud is persistent with rapid ascent and rotation. The wall cloud typically precedes tornadogenesis by
Wall_cloud
Whirlwind induced by and often composed of fire
J. J. Sharples; S. R. Wilkes; A. Walker (2013). "An Australian pyro-tornadogenesis event". Nat. Hazards. 65 (3): 1801–1811. Bibcode:2013NatHa..65.1801M
Fire_whirl
Type of region
critical to tornado formation (tornadogenesis). In 1975, Ted Fujita originated the recycling hypothesis of tornadogenesis: First, downdraft air is recirculated
Rear_flank_downdraft
Thunderstorm that is characterized by the presence of a mesocyclone
Severe Thunderstorm Evolution and Mesocyclone Structure as Related to Tornadogenesis by Leslie R. Lemon and Charles A. Doswell III. Moisture streams in from
Supercell
1997 F5 tornado
The "Dead Man Walking" photograph taken by Scott Beckwith outside of Jarrell Farm Supply as the tornado was mid-tornadogenesis.
Jarrell_tornado
1953 F5 tornado in Texas
boundaries, and those boundaries were thought to have an effect on tornadogenesis later on by creating enhanced wind shear. Eventually, storms developed
1953_Waco_tornado
1995 tornado in Massachusetts
Mountains, the tornado was the focal point of a 2006 paper researching tornadogenesis over complex terrain. In the morning hours of May 29, 1995, a regionally
Great_Barrington_tornado
Small-scale area of enhanced radar reflectivity
has resulted in mixed results regarding their predictive value for tornadogenesis. The concept of DRCs builds on the understanding of hook echoes, first
Descending_reflectivity_core
1925 tornado in Missouri, Illinois and Indiana, U.S.
air and lower cloud bases, or low LCL heights, which is favorable to tornadogenesis. From southeastern Kansas to Kentucky and Indiana, early morning showers
1925_Tri-State_tornado
Marginal sea of the Atlantic Ocean
atmospheric instability into the Central United States, furthering tornadogenesis in the region. North America portal Oceans portal Charlotte Harbor (estuary)
Gulf_of_Mexico
Origin of Tornadoes, the theory of tornadogenesis by the United States Weather Bureau in 1898
History_of_tornado_research
Weather radar pattern
the likely presence of a strong mesocyclone that is in some stage of tornadogenesis. It may give meteorologists the ability to pinpoint and track the location
Tornado_vortex_signature
American meteorologist
American meteorologist with substantial contributions to tornado dynamics, tornadogenesis, the environments of tornadoes, supercells, and severe convection, and
Yvette_Richardson
Succession of tornadoes originating from the same storm cell
1917. Tornado families can be a result of satellite tornadoes, cyclic tornadogenesis, or some combination thereof. Intense downbursts may also cause damage
Tornado_family
Tornado comprising multiple vortices
also had footage of it "walking" while multi-vortex. Tornadoes portal Tornadogenesis Elite Spotter Workshop crh.noaa.gov Archived 8 August 2010 at the Wayback
Multiple-vortex_tornado
Region of rotation within a powerful thunderstorm
coincide with the consolidation of these vortex patches, and may lead to tornadogenesis as a result. This is visually indicated by the formation of a wall cloud
Mesocyclone
American meteorologist
Markowski is an American atmospheric scientist and leading expert on tornadogenesis and the prediction of supercells and tornadoes. He is a professor and
Paul Markowski (meteorologist)
Paul_Markowski_(meteorologist)
Visible mass of particles suspended in the atmosphere
the stronger the updraft is, the more likely the storm is to undergo tornadogenesis and to produce large hail and high winds. Yellowish clouds may be seen
Cloud
Vortex or tornado occurring over a body of water
Tornadoes portal Weather portal Fire whirl Funnel cloud Steam devil Tornadogenesis Burt, Christopher (2004). Extreme weather : a guide & record book. Cartography
Waterspout
EF5 tornado in Iowa
developing mesocyclone, a micro-scale interaction indicative of aiding in tornadogenesis. Simultaneously, low-level rotation on the southern supercell rapidly
2008 Parkersburg–New Hartford tornado
2008_Parkersburg–New_Hartford_tornado
Fleet of truck-mounted weather radars
understand they key processes in the lead up to and during tornadogenesis, what tornadogenesis mode is occurring (non-descending, descending, or simultaneous)
Doppler_on_Wheels
2013 EF5 tornado in Moore, Oklahoma
Mesonet. "Tornadogenesis in High-end Tornadic Supercells (Part 3) Moore, Oklahoma EF5 on May 20, 2013 A Case Representative of Tornadogenesis" (PDF). "Damage
2013_Moore_tornado
United States meteorological event
parent supercell. This was one of the first times that radar linked tornadogenesis with hook-echo signatures. However, because heavy rain obscured the
Tornado outbreak of May 9–11, 1953
Tornado_outbreak_of_May_9–11,_1953
British atmospheric scientist
substantially advanced understanding of supercell and tornado dynamics and of tornadogenesis. A theoretician, he utilized numerical simulations as well as storm
Robert_Davies-Jones
American meteorologist (born 1957)
mesoscale meteorology, severe convective storms, forecasting of storms, and tornadogenesis. He was the field coordinator of the first of the VORTEX projects in
Erik_N._Rasmussen
Meteorological observation
data might be poor. Also, some meteorological situations leading to tornadogenesis are not readily detectable by radar and on occasion tornado development
Convective_storm_detection
Weather radar
September 2013. Retrieved 2022-10-24. "Abstract: Confirming Bottom-up Tornadogenesis in the 31 May 2013 El Reno Tornado (29th Conference on Severe Local
RaXPol
Public advice of risk of severe storms
mesocyclonic rotation at the cloud base and may spawn tornadoes if advanced tornadogenesis occurs. An existing severe thunderstorm watch, or merely a portion of
Severe_thunderstorm_watch
short-lived, often F0 or EF0, although some can be destructive or notable. Tornadogenesis can occur because of a supercell thunderstorm, a waterspout, a landspout
List_of_California_tornadoes
Smaller tornado that orbits around a larger parent tornado
tornadoes spawned by the parent supercell (a process known as cyclic tornadogenesis and leading to a tornado family). On tornado outbreak days, if satellite
Satellite_tornado
American meteorologist (born 1960)
Richard Saul Wurman. Wurman is particularly interested in researching tornadogenesis and amassing sufficient datasets of tornado structure and dynamics observations
Joshua_Wurman
Weather watch indicating a risk of tornadoes
are less favorable for the kind of convective conditions capable of tornadogenesis, responsibilities for issuing tornado watches covering Alaska and Hawaii
Tornado_watch
important factor modulating severe thunderstorms. One example concerns tornadogenesis, with tornadoes most likely if the dew point depression is 20 °F (11 °C)
Dew_point_depression
2011 EF5 tornado in Oklahoma
1, 2015). "Rapid-Scan, Polarimetric, Doppler Radar Observations of Tornadogenesis and Tornado Dissipation in a Tornadic Supercell: The "El Reno, Oklahoma"
2011_El_Reno–Piedmont_tornado
Field experiments that study tornadoes
instrumentation, enabling a greater understanding of the processes involved with tornadogenesis. A violent tornado near Union City, Oklahoma was documented in its entirety
VORTEX_projects
American atmospheric scientist
scientist recognized for research on tornado structure and dynamics and on tornadogenesis. He participated in both of the VORTEX projects. Dowell studied computer
David_Dowell
1970 F5 tornado in Texas
echo. This coalescence had been previously observed in connection with tornadogenesis. By 9:14 p.m., the severe thunderstorm was 10–15 mi (16–24 km) in diameter
Lubbock_tornado
Weather warning indicating imminent danger of tornadoes
by a tornado warning if a storm exhibits credible characteristics of tornadogenesis from radar and ground observations. Tornado warnings are issued by weather
Tornado_warning
Tornado outbreak in Brazil and Argentina
weaker storm cell. Half an hour later, it began a phase of active cyclic tornadogenesis, where it would produce several strong and destructive tornadoes. The
2018 South America tornado outbreak
2018_South_America_tornado_outbreak
3D NEXRAD velocity scans showing the tornadogenesis of an EF1 tornado near Hollister, Oklahoma.
Tornadoes_of_2024
Small-scale rotational weather feature
cause an intensification of convective downburst winds and can lead to tornadogenesis. One form of MCV is the "comma head" of a line echo wave pattern (LEWP)
Mesovortex
F4 tornado in Paraná, Brazil
Catarina and Paraná, increasing vertical wind shear and thus favoring tornadogenesis. The supercell that produced the Rio Bonito do Iguaçu tornado formed
2025 Rio Bonito do Iguaçu tornado
2025_Rio_Bonito_do_Iguaçu_tornado
Nickname for areas of the southern United States which has strong or violent tornadoes
characteristics of the Southeast led to VORTEX-SE, a field project studying tornadogenesis, diagnosis and forecasting, in addition to social science implications
Dixie_Alley
Tornadoes that spin in the opposite direction of normal tornadoes
An anticyclonic tornado is a tornado which rotates in a clockwise direction in the Northern Hemisphere and a counterclockwise direction in the Southern
Anticyclonic_tornado
Tornado outbreak in Brazil
Catarina and Paraná, increasing vertical wind shear and thus favoring tornadogenesis. This violent, enormous and destructive tornado caused widespread destruction
2025 Southern Brazil tornado outbreak
2025_Southern_Brazil_tornado_outbreak
Type of tornado not originating from a mesocyclone
was rated F3. Dust devil Fire whirl Funnel cloud Gustnado Steam devil Tornadogenesis Vortex engine Whirlwind Jones, Judson (21 May 2020). "Why Landspout
Landspout
United States tornado outbreak in May 2025
mesoscale discussion. This was due to the existing very high parameters for tornadogenesis, including high shear caused by an increasing low-level jet and a high
Tornado outbreak of May 18–21, 2025
Tornado_outbreak_of_May_18–21,_2025
Deadly tornado in Illinois
very strong updrafts, and modulation of the updraft to better enable tornadogenesis. Conditions were ripe for severe thunderstorm development, and with
1990_Plainfield_tornado
F5 tornado in 1974
bolstered helicity to over 230 m2/s2—a combination of factors conducive to tornadogenesis. Consequently, the storms increased in intensity and coverage as they
1974_Cincinnati_tornado
mesocyclones of the same supercell thunderstorm in a process known as cyclic tornadogenesis. Multiple such supercells occurring on the same day in a common region
Glossary_of_tornado_terms
several scientific breakthroughs and theories regarding tornadoes and tornadogenesis, such as how tornadoes work within their life cycles and how tornadoes
Mobile radar observation of tornadoes
Mobile_radar_observation_of_tornadoes
2019 EF4 tornado in Ohio, United States
associated with the low-pressure area led to an environment conducive for tornadogenesis from eastern Iowa to western Ohio, which was included in the afternoon's
2019_Dayton_tornado
Portland, OR. Tuftedal, Kristofer S. (December 2016). Radar Detection of Tornadogenesis (pdf) (Thesis). Iowa State University. doi:10.31274/mteor_stheses-180813-2
MESO-SAILS
considered as a single longer track tornado. With the discovery of cyclic tornadogenesis with some supercell thunderstorms, it was learned that successive tornadoes
Skipping_tornado
cold fronts, which have the potential to spawn mesocyclones capable of tornadogenesis. Tornadoes in the country are usually short-lived, narrow, and weak
List_of_New_Zealand_tornadoes
Atmospheric phenomenon observed in Colorado, U.S.
Meteorological Society. Egger, Crystal. "Colorado's Front Range: Understanding Tornadogenesis In relation to the Denver Cyclone". Retrieved 2014-05-30. Pietrycha
Denver Convergence Vorticity Zone
Denver_Convergence_Vorticity_Zone
Measure of instability in the air as a buoyancy force
is entrained and then stretched in the updraft, with importance to tornadogenesis. The most important CAPE for tornadoes is within the lowest 1 to 3 km
Convective available potential energy
Convective_available_potential_energy
This photograph was taken as the F5 Jarrell tornado was undergoing tornadogenesis, with its multiple-vortex structure being compared to the appearance
List of meteorological photos and videos
List_of_meteorological_photos_and_videos
cold fronts, which have the potential to spawn mesocyclones capable of tornadogenesis. Tornadoes in the country are usually short-lived, narrow, and weak
Climate_of_New_Zealand
Climate factors contributing to the formation of tornadoes
List of tornadoes and tornado outbreaks List of F5 and EF5 tornadoes Tornadogenesis History of tornado research For example, a freak tornadoes hit South
Tornado_climatology
1973 tornado in Oklahoma, U.S.
"Severe Thunderstorm Evolution and Mesocyclone Structure as Related to Tornadogenesis". American Meteorological Society. Retrieved January 23, 2026.
1973_Union_City_tornado
Funnel-shaped cloud not touching the ground
A funnel cloud is a funnel-shaped cloud of condensed water droplets, associated with a rotating column of wind and extending from the base of a cloud (usually
Funnel_cloud
2024 tornado outbreak in the Central United States
Iowa by the mid-afternoon, approaching an environment favorable for tornadogenesis leading into the Des Moines area. Multiple tornadoes were reported in
Tornado outbreak of May 19–22, 2024
Tornado_outbreak_of_May_19–22,_2024
1925 tornado outbreak in the U.S. states of Missouri, Illinois, and Indiana
air and lower cloud bases, or low LCL heights, which is favorable to tornadogenesis. From southeastern Kansas to Kentucky and Indiana, early morning showers
1925 Tri-State tornado outbreak
1925_Tri-State_tornado_outbreak
Common misconceptions about tornadoes
successive parent mesocyclones forming and decaying is known as cyclic tornadogenesis, thus leading to a series of tornadoes spawned by the same supercell
Tornado_myths
Tornado in the United Kingdom
Office. Retrieved 29 March 2025. Knightley, Paul (September 2006). "Tornadogenesis across England on July 28, 2005" (PDF). International Journal of Meteorology
2005_Birmingham_tornado
Thunderstorm cloud that forms above a heat source
Sharpies, J; Wilkies, S; Walker, A (12 October 2012). "An Australian pyro-tornadogenesis event". Nat Hazards. 65 (3): 1801. doi:10.1007/s11069-012-0443-7. S2CID 51933150
Cumulonimbus_flammagenitus
Second-largest tornado outbreak in United States history
bolstered helicity to over 230 m2/s²—a combination of factors conducive to tornadogenesis. Consequently, the storms increased in intensity and coverage as they
1974_Super_Outbreak
convergence / upper-level divergence couplet. The paper attributes tornadogenesis to the interaction of synoptic, mesoscale, and storm-scale systems;
Tornadoes_of_2011
Paola, Robert. "Brunkild Tornado Event, 24 July 2000: An example of tornadogenesis in a low shear multicell storm environment over southern Manitoba, Canada"
List of Canadian tornadoes and tornado outbreaks (2000–present)
List_of_Canadian_tornadoes_and_tornado_outbreaks_(2000–present)
American atmospheric scientist
both the VORTEX projects and subsequent field research focusing on tornadogenesis. Straka earned a B.S. and M.S. in 1984 and 1986, respectively, from
Jerry_Straka
Digital phased array radar used for weather observation
in storm structure, which is particularly useful for understanding tornadogenesis and small timescale atmospheric occurrences. To calibrate its radar
Horus_(radar)
Weather event in the United States
northern Iowa and southern Minnesota—indicating favorable conditions for tornadogenesis. Tornado outbreak of April 22–23, 2020 – Produced an even stronger EF3
Tornado outbreak of April 30 – May 2, 1967
Tornado_outbreak_of_April_30_–_May_2,_1967
Tornado outbreak in Texas
outwards by the downdrafts of the thunderstorms served as foci for tornadogenesis; boundaries like gust fronts can provide low-level vorticity and rising
1997 Central Texas tornado outbreak
1997_Central_Texas_tornado_outbreak
development may be variously described as cyclogenesis or, more specifically, tornadogenesis. Contrast anticyclogenesis. dark adaptor goggles A type of specialized
Glossary_of_meteorology
Type of weather advisory
for widespread funnel clouds with limited to no threat of complete tornadogenesis, the likelihood of landspouts, or strong outflow winds from decaying
Special_weather_statement
American photographer and meteorologist
storm chaser. He was a significant collaborator in seminal research on tornadogenesis, specifically the importance of baroclinic boundaries, the rear-flank
David_O._Blanchard
2019 Tornado event in Alabama and Georgia, United States
The SPC noted that the shear and CAPE were maximized, and that strong tornadogenesis will likely occur "within the next 30-60 minutes". A tornado warning
2019_Beauregard_tornado
Measurement of strength and severity of tornadoes
Tornado intensity is the measure of wind speeds and potential risk produced by a tornado. Intensity can be measured by in situ or remote sensing measurements
Tornado_intensity
2024 tropical cyclone tornado outbreak
with peak daytime heating would lead to a conducive environment for tornadogenesis as Milton's outer convective bands swept the area. On October 9 at 06:00
Hurricane Milton tornado outbreak
Hurricane_Milton_tornado_outbreak
2010 video game
to whichever team can produce the best theories as to the cause of tornadogenesis. A series of equipment failures and other mishaps, such as their previous
Nancy Drew: Trail of the Twister
Nancy_Drew:_Trail_of_the_Twister
1995 Texas Panhandle tornado outbreak
"The 8 June 1995 McLean, Texas, Storm. Part I: Observations of Cyclic Tornadogenesis". Monthly Weather Review. 130 (11): 2626–2648. Bibcode:2002MWRv..130
Tornado outbreak of June 8, 1995
Tornado_outbreak_of_June_8,_1995
(October 29, 2020). "High Temporal-Spatial Resolution Observation of Tornadogenesis in a Shallow Supercell Associated With Typhoon Hagibis (2019) Using
Tornadoes_of_2019
Region in the United States
western section of the "Dixie Alley" tornado climatology region, where tornadogenesis is most often attributed by high precipitation supercell thunderstorms—within
Ark-La-Tex
Network of weather radars operated by the NWS
RADMET. Tuftedal, Kristofer S. (December 2016). Radar Detection of Tornadogenesis (pdf) (Thesis). Iowa State University. doi:10.31274/mteor_stheses-180813-2
NEXRAD
Tornado in Naypyidaw, Myanmar
environment capable of producing severe convective storms and severe tornadogenesis in the flat terrain of the central plains near Naypyidaw. The tornado
2023 Aung Myin Kone–Tada U tornado
2023_Aung_Myin_Kone–Tada_U_tornado
1953 F5 tornado affecting Mississippi
growth of severe thunderstorms, along with the conditions necessary for tornadogenesis. At 1:30 p.m. CST (19:30 UTC), the Severe Local Storms Unit of the United
1953_Vicksburg_tornado
F5 tornado in 1974
bolstered helicity to over 230 m2/s2—a combination of factors conducive to tornadogenesis. Consequently, the storms increased in intensity and coverage as they
1974_Brandenburg_tornado
List of fire behaviors
Wikles, Stephen; Walker, Alan (October 12, 2012). "An Australian pyro-tornadogenesis event" (PDF). Retrieved August 30, 2024. "Loyalton Fire: Fire Tornado
List_of_wildfire_behaviors
List of tornadoes in Brazil
Effect of Surface Drag Strength on Mesocyclone Intensification and Tornadogenesis in Idealized Supercell Simulations". Journal of the Atmospheric Sciences
List_of_Brazil_tornadoes
Powerful wind storm in U.S. Midwest
straight-line winds, the atmospheric environment became more conducive for tornadogenesis during this time. This resulted in several brief EF0 and EF1 tornadoes
2020_Midwest_derecho
American meteorologist (1945–2025)
"Severe Thunderstorm Evolution and Mesocyclone Structure as Related to Tornadogenesis". Monthly Weather Review. 107 (9): 1184–97. Bibcode:1979MWRv..107.1184L
Charles_A._Doswell_III
Weather Service to underestimate how conducive the environment was for tornadogenesis. An EF2 tornado struck the town of Bondurant, causing heavy damage to
Tornadoes_of_2018
Kenneth LaPenta; Anton Seimon & Michael Dickinson. "Terrain-Influenced Tornadogenesis in the Northeastern United States: An Examination of the 29 May 1995
Tornadoes_in_New_England
shear was high enough to inhibit tornadogenesis, cyclical thunderstorm developments increased the odds of tornadogenesis as the storms tracked east. At
Tornado outbreak sequence of May 3–11, 2003
Tornado_outbreak_sequence_of_May_3–11,_2003
Severe weather event in South Florida
if a huge high-speed derrick had slung the roof off. — Arthur Pryor Tornadogenesis took place over the Hialeah municipal golf course near 1:00 p.m. Writing
1925_Miami_tornado
American meteorologist (1947–2020)
"Severe Thunderstorm Evolution and Mesocyclone Structure as Related to Tornadogenesis". Mon. Wea. Rev. 107 (9): 1184–97. Bibcode:1979MWRv..107.1184L. doi:10
Leslie_R._Lemon
Tornado outbreak in Central Florida, US, on February 22–23, 1998
just above the surface, and thereby yielded conducive conditions to tornadogenesis. During the evening and the overnight hours of February 22–23, 1998
1998 Central Florida tornado outbreak
1998_Central_Florida_tornado_outbreak
TORNADOGENESIS
TORNADOGENESIS
TORNADOGENESIS
TORNADOGENESIS
Boy/Male
Arabic, Muslim
Another Name for God; Generous; Charitable
Boy/Male
Welsh American Anglo Saxon
Ardent.
Girl/Female
Sanskrit
Of the moon.
Girl/Female
Indian
The beloved one
Girl/Female
Muslim
Pomegranate
Girl/Female
Assamese, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Sanskrit, Telugu
Devoted Girl
Boy/Male
Assamese, Bengali, Hindu, Indian, Marathi, Mythological, Oriya, Sanskrit, Telugu
Son of Agni
Girl/Female
Indian
Apple
Girl/Female
African, Hindu, Indian, Kannada, Malayalam, Marathi, Sindhi, Swahili, Telugu
Emerald
Boy/Male
Hindu
Tradition, Culture
TORNADOGENESIS
TORNADOGENESIS
TORNADOGENESIS
TORNADOGENESIS
TORNADOGENESIS