torre126/tornado-structure-data huggingface dataset:
Episode narrative: During the afternoon and evening hours of April 5, a low pressure system, moving northeast from Minnesota into Ontario, dragged a trailing cold front through the Lower Ohio Valley. This produced a line of severe storms that moved west to east over central Kentucky, resulting in multiple reports of tree damage, structural damage, and four combined tornadoes in Jefferson and Meade Counties.

Tornado event in JEFFERSON County, KENTUCKY
Start: 05-APR-23 16:05:00
End: 05-APR-23 16:06:00
Direct deaths: 0
Event narrative: The National Weather Service in Louisville conducted a storm assessment survey across the Watterson Park neighborhood in Louisville. This is the area just south of the intersection of Newburg Road and Interstate 264 (Watterson Expressway). There were two tornadoes in this area separated by a clear and distinct break of about 200 yards.  

The second tornado touched down near the intersection of Annshire Avenue and Vineyard Drive. There was some sporadic tree damage just south of the US Post Office on Gardiner Lane, ranging from 80 to 85 mph. The twister quickly increased in strength to an EF-1 tornado of 90 mph, hitting the the DashMart warehouse. The western  wall of the warehouse was blown out with debris scattered downwind from the northeast to southeast direction. There was tree damage further east including some debarking of older softwood trees. The north side of a mini storage facility had significant damage, and part of the Kroger distribution center had some substantial wall damage.  

The tornado next crossed Gardiner Lane and hit the Big Brothers Big Sisters building, knocking down a statue and causing minor roof damage. There was more roof damage at the Louisville Metro Housing Authority off of Bishop Lane. There was wood fence damage between the Speedway and Little People Academy off of Classified Place. The damage east of Gardiner Lane was between 85 and 90 mph. 

The tornado crossed Bishop Lane before causing roof damage to the Jefferson County Public Schools' Van Hoose Center. Wind speeds were estimated to between 80 and 85 mph.
Episode narrative: Showers and thunderstorms overspread the area during the early morning hours ahead of a strong low pressure system and an associated cold front that were moving through the Ohio Valley.

Tornado event in MIAMI County, OHIO
Start: 01-APR-23 00:01:00
End: 01-APR-23 00:14:00
Direct deaths: 0
Property damage: 200.00K
Event narrative: The tornado first touched down near Pemberton Road, where it caused significant damage to a barn and a garage on Penny Road. The tornado continued east-northeast and moved through a commercial area on State Route 41 and then caused roof damage to several homes on the north side of Troy. Consistent damage continued to as far east as Deweese Road. Reports and photo evidence from numerous citizens in the area, in addition to emergency management officials, helped determine the extent of this tornado. Maximum winds were estimated to be around 85 mph.
Episode narrative: A squall line of severe thunderstorms organized along the Mississippi River and moved east across western Kentucky from late morning through mid afternoon. Pockets of damaging wind accompanied this line of storms. A few brief squall-line tornadoes occurred. The squall line developed ahead of a cold front trailing south from a surface low pressure system. Diurnal heating contributed to a more unstable atmosphere ahead of the front. A deep 500 mb trough over the western high Plains was preceded by strong southwest mid-level flow of 60 knots or more, which helped organize the convection.

Tornado event in BALLARD County, KENTUCKY
Start: 05-APR-23 12:26:00
End: 05-APR-23 12:27:00
Direct deaths: 0
Property damage: 25.00K
Event narrative: A short-lived tornado occurred along Highway 286. The most severe damage was to a residence located along Highway 286, which suffered significant shingle, gutter, and fascia damage. There was also damage to an air conditioning unit and an attached porch. Several large tree limbs were also downed by the tornado in the vicinity of the residence. Peak winds were estimated near 95 mph.

Tornado event in CALLOWAY County, KENTUCKY
Start: 05-APR-23 13:02:00
End: 05-APR-23 13:07:00
Direct deaths: 0
Property damage: 100.00K
Event narrative: Several homes sustained shingle damage. One garage slid off its foundation. Several trees were snapped or uprooted. There was roof damage and windows were blown in at a commercial site. The most significant damage occurred along Poor Farm Road. Peak winds were estimated near 85 mph.
Episode narrative: An upper level low pressure system shifted east from Montana east into the Dakotas on April 20th, with the attendant trough extending southward through the Rockies before ejecting east through the Central and Southern Plains during the afternoon and evening. A strong southerly low level flow ahead of this trough ushered very warm and humid air back north into the Four State Region on the 19th-20th, which primed the area with moderate instability ahead of an associated cold front that entered the region during the afternoon. Large scale forcing increased by mid and late afternoon through the evening along and ahead of the front and upper trough within the warm, moist, and unstable sector, enhancing scattered to numerous shower and thunderstorm development across portions of East Texas, Southeast Oklahoma, and Southwest Arkansas. Multiple reports of damaging winds and large hail were observed, with an isolated tornado also touching down in Midtown Tyler in Smith County. Localized flash flooding was also reported on the Texas side of Texarkana before the storms weakened during the evening with the loss of heating and reduced instability.

Tornado event in SMITH County, TEXAS
Start: 20-APR-23 18:05:00
End: 20-APR-23 18:08:00
Direct deaths: 0
Property damage: 5.00K
Event narrative: A NWS Storm Survey and local area spotter videos confirmed a slow moving but weak EF-0 tornado with maximum estimated winds near 80 mph touched down in the Midtown area of Tyler. The tornado initially touched down near Lloyd James Funeral Home near the intersection of East 1st Street and South Fleishel Avenue, where numerous large and small limbs were snapped off of nearby trees with a few shingles torn off of the roof of the funeral home. In addition, a large canopy on the front entrance of the funeral home was torn off and thrown into a nearby tree. The tornado then moved just northeast of the UT Health Tyler Campus, where it crossed East Idel Street, and peeled off a portions of a metal roof from a nearby medical building. A glass canopy was partially lifted up and shattered in front of the medical building, and a nearby hardwood tree had several limbs that were snapped. The tornado continued northeast along South Fleishel Avenue, where it uprooted a hardwood tree which damaged the corner of a nearby single family home at the end of Woodley Street, and also snapped large limbs off of a softwood tree on East Houston Street before lifting.
Episode narrative: Showers and thunderstorms overspread the area during the early morning hours ahead of a strong low pressure system and an associated cold front that were moving through the Ohio Valley.

Tornado event in DARKE County, OHIO
Start: 01-APR-23 00:02:00
End: 01-APR-23 00:08:00
Direct deaths: 0
Property damage: 50.00K
Event narrative: The tornado first touched down near the intersection of Red River West Grove Road and Fourman Road, where mainly tree damage was observed. Some tree and barn damage occurred on Range Line Road with minor tree damage observed as far east as West Milton. Reports and photo evidence from numerous citizens in the area, in addition to emergency management officials, helped determine the extent of this tornado. Maximum wind speeds were estimated to be around 80 mph.
Episode narrative: A cyclic supercell moved northeast from Arkansas, producing two tornadoes in southeast Missouri. Both tornadoes occurred in heavily forested areas. The second tornado struck a small community called Glenallen, located near Marble Hill in Bollinger County. Several fatalities were associated with this significant tornado. The supercell was the product of a favorable environment for tornadic storms. Moderate instability and strong deep-layer wind shear coincided over the region. Mixed-layer capes were between 1000 and 1500 j/kg in the presence of effective bulk shear around 55 knots. A surface low tracked from central Kansas into Iowa, resulting in a large unstable warm sector over Missouri and Illinois. Strong low-level south to southwest winds brought unseasonably warm late-night temperatures in the mid 70's and dew points in the 60's.  The onset of storms was delayed by capping in the warm sector and pockets of dry low-level air. Wind fields strengthened throughout the night and capping weakened, leading to nocturnal supercell tornadoes.

Tornado event in CARTER County, MISSOURI
Start: 05-APR-23 01:48:00
End: 05-APR-23 01:49:00
Direct deaths: 0
Property damage: 10.00K
Event narrative: This was the start of the tornado track as determined by an aerial survey from the USDA Forest Service. Trees were uprooted. Peak winds were estimated near 85 mph in this very short section of track in Carter County. The tornado quickly entered Wayne County in a highly forested area.
Episode narrative: Rounds of strong to severe thunderstorms occurred across southern WI, as low pressure and its warm and cold fronts approached and moved across the region. Many large hail reports were received along with one EF0 tornado. Some damaging winds and flooding also occurred.

Tornado event in WALWORTH County, WISCONSIN
Start: 05-APR-23 05:38:00
End: 05-APR-23 05:40:00
Direct deaths: 0
Property damage: 6.00K
Event narrative: EF0 tornado uprooted numerous trees and caused minor shingle and soffit damage to a home in the Cobble Creek neighborhood. A fire pit was lofted from one property to an adjacent one.
Episode narrative: Active weather was expected as a very potent system moved into the midwest and rapidly deepened, driving a cold front into the CWA during the morning hours. Supercells were expected to condense into a linear system and enter the CWA around 2-4AM, enter the Atlanta metro 7-11AM and then progress into central GA. Clear conditions were expected behind the line.

Tornado event in CHEROKEE County, GEORGIA
Start: 01-APR-23 06:35:00
End: 01-APR-23 06:38:00
Direct deaths: 0
Event narrative: The tornado first touchdown along the northern edge of homes along Dreamcatcher Drive where a few trees were snapped. The tornado continue east in a largely wooded area snapping trees behind some homes along Pine Bluff ct. As it crossed I575 the driver of a car reported being spun by the tornado and the hood of the car being blown back into and smashing the windshield. Street signs on both sides of I 575 were blown down as well as several small trees. The tornado continued east, crossing Olde Rope Mill Park Road and along Loraine Pkwy causing mostly tree damage before reaching Bell Park Drive and Bell Court Where several trees were snapped. The storm continued into South Cherokee Recreational complex where the roof of a dugout was blown off, bleachers were overturned and a press box was blown over. The tornado weakened and lifted as it reached Mill Creek Road.
Episode narrative: Several weak brief tornadoes touched down during the evening hours as a cold front and trough of low pressure moved through Eastern NC.

Tornado event in JONES County, NORTH CAROLINA
Start: 22-APR-23 19:43:00
End: 22-APR-23 19:44:00
Direct deaths: 0
Event narrative: The tornado first touched down at a residence near the junction of Country Lane and NC Highway 41 West. Several hardwood trees with diameters of 12 inches or more were snapped and uprooted behind the residence, along with some smaller softwood trees with diameters less than 12 inches in diameter. The tornado then crossed a field and did major damage to a metal storage structure. The structure was freestanding on a concrete slap and was attached to timbers in all four corners. Large metal siding was flung great distances in all directions, but especially to the northwest, the direction of the tornado path. A large piece as thrown through the plywood of a house under construction, and continued out the other side of the house through large garage doors that were uninstalled. Many pieces of the metal framed structure were found at least 20 feet up in a large hardwood tree, and at least 100 yards in the open field to the northwest. The tornado then lifted near the junction of NC Highway 41 West and Chinquapin Chapel Road. The strongest winds were estimated around 90 mph.

Tornado event in JONES County, NORTH CAROLINA
Start: 22-APR-23 19:52:00
End: 22-APR-23 19:53:00
Direct deaths: 0
Event narrative: The tornado touched down along a farm field on the west side of Henderson Road just to the northwest of Trenton. Several 1.5 foot or large hardwood trees were uprooted along the edge of the farm field. There were also several hardwood trees of much smaller diameter that were snapped about 15 feet up their trunks. The tornado then uprooted a large 2 foot diameter hardwood tree in the front of a resident on the east side of Henderson Road before lifting.
Episode narrative: A very strong low pressure system deepened over the central Great Plains beginning on March 31, 2023 and continuing into April 1st. As this storm system approached Middle Tennessee from the west, southerly flow at the surface resulted in plenty of moisture and warm temperatures for the area. This all helped to set up an early spring severe weather episode for the area. This system's accompanying cold front approached the Mississippi River late on March 31st. Thunderstorm activity across western Tennessee quickly turned severe, but this early activity tended to rapidly weaken as it crossed the Tennessee River where instability was not favorable. However, as the cold front approached Middle Tennessee and the low level jet strengthened, these thunderstorms were able to better sustain themselves. Numerous severe thunderstorms impacted Middle Tennessee through the early morning hours of April 1st. These thunderstorms produced large hail and damaging winds, while several thunderstorms also produced tornadoes. In total, four tornadoes were confirmed in National Weather Service Nashville's area. The most impacted area was Readyville along the Rutherford and Cannon county line were a strong EF2 tornado caused significant damage.

Tornado event in MARSHALL County, TENNESSEE
Start: 01-APR-23 00:16:00
End: 01-APR-23 00:21:00
Direct deaths: 0
Property damage: 1.00M
Event narrative: An EF1 tornado with estimated peak winds of 110 mph touched down about four miles northwest of Chapel Hill near Moss Road in northern Marshall County. Moving northeast, the tornado blew down several trees and caused minor to moderate damage to homes on Thick Road, Egypt Road, Smiley Road, and Blackwell Road. The tornado intensified as it continued northeast, blowing five train cars off a track along Highway 31A and heavily damaging homes on Beasley Road and Tennessee Central Road. The tornado then continued into Rutherford County. Damages are estimated for Marshall County.
Episode narrative: A cyclic supercell moved northeast from Arkansas, producing two tornadoes in southeast Missouri. Both tornadoes occurred in heavily forested areas. The second tornado struck a small community called Glenallen, located near Marble Hill in Bollinger County. Several fatalities were associated with this significant tornado. The supercell was the product of a favorable environment for tornadic storms. Moderate instability and strong deep-layer wind shear coincided over the region. Mixed-layer capes were between 1000 and 1500 j/kg in the presence of effective bulk shear around 55 knots. A surface low tracked from central Kansas into Iowa, resulting in a large unstable warm sector over Missouri and Illinois. Strong low-level south to southwest winds brought unseasonably warm late-night temperatures in the mid 70's and dew points in the 60's.  The onset of storms was delayed by capping in the warm sector and pockets of dry low-level air. Wind fields strengthened throughout the night and capping weakened, leading to nocturnal supercell tornadoes.

Tornado event in WAYNE County, MISSOURI
Start: 05-APR-23 01:49:00
End: 05-APR-23 01:56:00
Direct deaths: 0
Property damage: 200.00K
Event narrative: The tornado entered a heavily forested area of Wayne County after forming just over the county line in Carter County. The tornado produced a swath of tree destruction up to 300 yards wide. The tornado paralleled Highway A for about a mile or so. The only structural damage was observed where the tornado crossed Highway A. One garage suffered minor roof damage by a falling tree. The tornado caused shingle damage to a house located along Highway A. Where the tornado crossed Highway 49, the most intense tree damage was observed. This is where peak winds were estimated near 110 mph and where acres of trees were flattened. The tree damage swath became narrow and much less intense east of Highway 49 in hilly forested terrain.
Episode narrative: As a warm front lifted northward, a highly unstable and sheared environment developed across west-central Illinois during the afternoon and evening of April 4th.  Despite the favorable parameters, thunderstorm activity was slow to initiate due to the lack of a forcing mechanism and the presence of low-level capping.  As a subtle short-wave approached from the west and weakened the cap, a large supercell thunderstorm formed over southern McDonough County then tracked east-northeast across Fulton County.  This storm produced a total of 4 tornadoes in Fulton County...including an EF-3 tornado that tracked across the northwest side of Lewistown.  Very large hail was reported as well...with the largest stone measuring 4 inches in diameter in the town of Bernadotte.

Tornado event in FULTON County, ILLINOIS
Start: 04-APR-23 18:11:00
End: 04-APR-23 18:38:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A tornado touched down about 1 mile south of Ipava at 7:11 PM CDT.  It tracked east-northeastward causing EF-1 level damage near the intersection of East Square Road and North Summum Road where several farm buildings and a home sustained damage.  The tornado then curved northeastward and crossed the Spoon River Bottoms.  Damage began increasing about 1.5 miles west of Lewistown near County Highway 14 where several houses and outbuildings were damaged along North Milton Road.  The tornado increased in intensity, producing EF-3 damage just northwest of Lewistown where it crumpled a metal high tension transmission tower.  It crossed State Highway 97 just northwest of the intersection with State Highway 100 and damaged numerous homes and farm buildings along State Highway 100 between North Grain Bin Highway and East Epworth Spring Road.  The tornado blew down several power poles from this point northeastward to the southwest edge of Bryant.  Much of the tornado damage within the town of Bryant was west of State Highway 100 between Ash Street and Elm Street...with damage east of State Highway 100 being caused by rear-flank downdraft winds of 70 to 100 mph.  EF-3 tornado damage was observed about 1 mile southwest of Bryant near the intersection of State Highway 100 and North Wright Road where several houses were demolished.  EF-3 damage was also noted 1 mile northeast of Bryant near the west end of East Hooty Road.  Four injuries occurred in the Bryant area.  The tornado continued northeastward, damaging trees and power lines west of Saint David and a home along West Hickory Street southwest of Canton.  It dissipated about 2 miles southwest of Canton at 7:38 PM CDT.
Episode narrative: A very strong low pressure system deepened over the central Great Plains beginning on March 31, 2023 and continuing into April 1st. As this storm system approached Middle Tennessee from the west, southerly flow at the surface resulted in plenty of moisture and warm temperatures for the area. This all helped to set up an early spring severe weather episode for the area. This system's accompanying cold front approached the Mississippi River late on March 31st. Thunderstorm activity across western Tennessee quickly turned severe, but this early activity tended to rapidly weaken as it crossed the Tennessee River where instability was not favorable. However, as the cold front approached Middle Tennessee and the low level jet strengthened, these thunderstorms were able to better sustain themselves. Numerous severe thunderstorms impacted Middle Tennessee through the early morning hours of April 1st. These thunderstorms produced large hail and damaging winds, while several thunderstorms also produced tornadoes. In total, four tornadoes were confirmed in National Weather Service Nashville's area. The most impacted area was Readyville along the Rutherford and Cannon county line were a strong EF2 tornado caused significant damage.

Tornado event in RUTHERFORD County, TENNESSEE
Start: 01-APR-23 00:21:00
End: 01-APR-23 00:24:00
Direct deaths: 0
Property damage: 200.00K
Event narrative: The continues the narrative for a tornado than began in Marshall County. After leaving Marshall County, the tornado continued into Rutherford County where it crossed Chapel Hill Pike and Rigsby Road where roofing damage and uprooted trees were discovered. This tornado then briefly crosses into Bedford County.

Tornado event in BEDFORD County, TENNESSEE
Start: 01-APR-23 00:24:00
End: 01-APR-23 00:25:00
Direct deaths: 0
Property damage: 50.00K
Event narrative: This narrative continues a tornado that began in Marshall County before tracking into Rutherford County. This tornado just clipped the extreme northwest edge of Bedford County where an outbuilding was heavily damaged. The tornado then continued back into Rutherford County. Damages are estimated for Bedford County.
Episode narrative: A cyclic supercell moved northeast from Arkansas, producing two tornadoes in southeast Missouri. Both tornadoes occurred in heavily forested areas. The second tornado struck a small community called Glenallen, located near Marble Hill in Bollinger County. Several fatalities were associated with this significant tornado. The supercell was the product of a favorable environment for tornadic storms. Moderate instability and strong deep-layer wind shear coincided over the region. Mixed-layer capes were between 1000 and 1500 j/kg in the presence of effective bulk shear around 55 knots. A surface low tracked from central Kansas into Iowa, resulting in a large unstable warm sector over Missouri and Illinois. Strong low-level south to southwest winds brought unseasonably warm late-night temperatures in the mid 70's and dew points in the 60's.  The onset of storms was delayed by capping in the warm sector and pockets of dry low-level air. Wind fields strengthened throughout the night and capping weakened, leading to nocturnal supercell tornadoes.

Tornado event in BOLLINGER County, MISSOURI
Start: 05-APR-23 02:30:00
End: 05-APR-23 02:56:00
Direct deaths: 5
Property damage: 2.00M
Event narrative: The tornado moved northeast across central Bollinger County, passing just north and west of Marble Hill. The most severe damage occurred in Glenallen (near Marble Hill), where several fatalities and injuries occurred. All five occupants of a demolished mobile home were killed there, including two teenagers, a middle-aged adult, and two older adults. Several manufactured homes were totally destroyed. Approximately a couple of dozen homes suffered major structural damage, including roof damage, broken windows, and collapse of walls. Severe tree damage occurred in the vicinity of Glenallen, where hundreds of trees were snapped at the base. A dozen or so farm outbuildings sustained major damage along the path of the tornado. Peak winds were estimated near 130 mph at Glenallen. The maximum path width and damage rating were assigned to the Glenallen area along Highway 34. The tornado was very close to dissipating when it crossed into Cape Girardeau County.