torre126/tornado-structure-data huggingface dataset:
Episode narrative: A very strong system developed on the morning of March 31st and tracked across the state of Iowa. This system pulled unseasonably warm and moist air into the Midwest, which combined with a very favorable wind profile to create a volatile environment for severe thunderstorms.  Discrete supercell thunderstorms occurred initially, but quickly transitioned into a QLCS mode. This system produced a historic tornado outbreak for the area, with a record 29 tornadoes on the day, including 13 rated EF-2, 1 rated EF-3, and 1 rated EF-4. This was the first EF-4 tornado in the NWS Quad Cities service area since 1995. 11 injuries were reported, with no known fatalities. In addition to the numerous tornadoes, there were many large hail and damaging wind reports. Maximum straight line thunderstorm winds were estimated at 80 to 90 mph.

Tornado event in SCOTT County, IOWA
Start: 31-MAR-23 16:36:00
End: 31-MAR-23 16:37:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A tornado touched down 3 miles north of Atalissa, Iowa in Cedar County, snapping power poles and large trees along its path. It caused significant damage to two homes southwest of Bennett, Iowa, and flipped over a semi along interstate 80. It also damaged several concrete block silos south of Bennett. The tornado continued to track to the northeast through a rural area, causing sporadic tree damage.  The tornado entered extreme northwest Scott County about a third of a mile south of 220th St., then travelled around one mile before entering Clinton County about a half mile west of the intersection of 280th St. and 110th Ave. The tornado then dissipated about 2 miles south of Wheatland. The peak winds were estimated at 120 mph. The tornado was rated EF-2 in Cedar County, and EF-0 in Scott and Clinton Counties.

Tornado event in CARROLL County, ILLINOIS
Start: 31-MAR-23 17:50:00
End: 31-MAR-23 17:56:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: This tornado began southeast of Lanark in Carroll County and tracked to the northeast before moving into Ogle County about a quarter mile north of the intersection of W White Oak Road and N Brookville Road. The tornado path then continued for about 5 miles through Ogle County (see NWS Chicago StormData). The tornado then crossed into Stephenson County, just east of the intersection of N Mt. Vernon Road and Montague Road.  This tornado caused extensive damage to several farm buildings and also downed a few trees along its path. The tornado was rated EF-1 in Carroll and Ogle Counties. In Stephenson County, there was no observable damage so the rating is  EF-U.
Episode narrative: A high amplitude, negatively tilted trough moving across the Great Lakes and into New England along with cold and warm front provided strong forcing which resulted in flooding, wind damage, and 5 tornadoes. In the warm sector dewpoints surged into the mid 70s with PWATs near 2 inches which led to torrential downpours. Tornadoes occurred in Scotland, Ct, Scituate, RI, North Attleboro, MA, Stoughton, MA, and Weymouth, MA. The tornadoes ranged in intensity from EF-0 to EF-2.

Tornado event in NORFOLK County, MASSACHUSETTS
Start: 18-AUG-23 08:52:00
End: 18-AUG-23 08:55:00
Direct deaths: 0
Property damage: 10.00K
Event narrative: A tornado touched down in Weymouth near the intersection of Pleasant and Torrey Streets. Numerous trees were uprooted and  snapped. A home at the intersection of Burton Terrace and Torrey Street had about twenty singles torn from its roof. On Park Avenue, a three-inch diameter branch from a treetrop was blown  about 120 yards and driven into the ground to a depth of 2 feet. An eyewitness who received a Wireless Emergency Alert could see swirling debris out a window as she took shelter in her cellar.  The tornado lifted near a water tower at the end of Lockewoods  Drive.
Episode narrative: A line of storms produce damaging winds and tornadoes.

Tornado event in CHICOT County, ARKANSAS
Start: 02-JAN-23 21:07:00
End: 02-JAN-23 21:08:00
Direct deaths: 0
Property damage: 20.00K
Event narrative: This tornado developed along Creech Rd, where minor roof damage occurred to a home and a trampoline was tossed, some small trees were snapped, and several large limbs were downed. It continued northeastward, crossing Pine Grove Rd where multiple sheds and a small trailer were damaged, additional trees were downed, and a home experienced shingle damage. Two more homes received minor roof damage and two more sheds were damaged as the tornado crossed LA Hwy 585. One small shed was demolished and another was damaged along Dawson Rd before the tornado turned more northward. As the tornado crossed Arkla Rd at the Arkansas state line, a home sustained shingle damage and a trampoline was tossed, then a barn was blown down and a shed was tossed before the tornado dissipated shortly thereafter.
Episode narrative: Broad troughing was present aloft across the Western US during the afternoon/evening of the 19th. An area of surface low-pressure slowly deepened and moved towards north-central Kansas, with dryline extending from central Kansas through western-north Texas by the late afternoon hours. A well-timed lead upper wave, combined with broken insolation, led to the development of a few supercell thunderstorms across central Oklahoma. Multiple instances of large to very large (>2 inches) hail, along with 18 tornadoes, occurred across central Oklahoma.

Tornado event in CLEVELAND County, OKLAHOMA
Start: 19-APR-23 19:36:00
End: 19-APR-23 19:45:00
Direct deaths: 0
Property damage: 500.00K
Event narrative: The ninth tornado developed soon after the eighth dissipated, developing southeast of 120th Avenue and Maguire Road. The tornado moved erratically east and northeast dissipating near 180th Avenue between Etowah Road and Post Oak Road. Multiple mobile homes were destroyed and numerous homes suffered roof damage with the most intense damage along Maguire Road. Numerous trees were damaged along the path as well and two RVs were flipped over.

Tornado event in LINCOLN County, OKLAHOMA
Start: 19-APR-23 21:14:00
End: 19-APR-23 21:16:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: The Shawnee tornado moved into Lincoln County just west of Kickapoo Street, damaging tree branches before dissipating about one-half mile north of the county line.

Tornado event in CLEVELAND County, OKLAHOMA
Start: 19-APR-23 19:47:00
End: 19-APR-23 19:57:00
Direct deaths: 0
Property damage: 750.00K
Event narrative: The eleventh tornado of the outbreak, and the fourth of four in the Etowah area, developed a minute or two after tornado #9 dissipated. This tornado developed near 180th Avenue and Post Oak Road and quickly become a very wide tornado as it moved north-northeast, and then northeast before crossing into Pottawatomie County just south of Lindsey Street. Numerous EF2 rated points were observed during the first two miles of the tornado path including significant damage to homes and destruction of mobile homes.
Episode narrative: An upper level low passing over Wyoming combined with a strong jet stream to bring an outbreak of severe thunderstorms. Four tornadoes were reported on this day, the most in one day since June 12, 2017. There was one each in Johnson and Sweetwater County and two in Natrona County. The largest tornado was south of Midwest in northern Natrona County where a horse trailer was flipped and fuel tanks were blown away. Very large hail also occurred with some of the storms. The largest hail occurred in southern Johnson County and northern Natrona County where baseball size hail was reported. Another severe thunderstorms moved from Lander to Riverton and dropped quarter to golf ball size hail, causing damage to many vehicles.

Tornado event in JOHNSON County, WYOMING
Start: 23-JUN-23 13:40:00
End: 23-JUN-23 13:41:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A rancher reported a brief touchdown of a tornado north of Kaycee to the Johnson County Sheriffs office.
Episode narrative: Broad troughing was present aloft across the Western US during the afternoon/evening of the 19th. An area of surface low-pressure slowly deepened and moved towards north-central Kansas, with dryline extending from central Kansas through western-north Texas by the late afternoon hours. A well-timed lead upper wave, combined with broken insolation, led to the development of a few supercell thunderstorms across central Oklahoma. Multiple instances of large to very large (>2 inches) hail, along with 18 tornadoes, occurred across central Oklahoma.

Tornado event in POTTAWATOMIE County, OKLAHOMA
Start: 19-APR-23 19:57:00
End: 19-APR-23 19:59:00
Direct deaths: 0
Property damage: 25.00K
Event narrative: This eleventh tornado moved into Pottawatomie County from Cleveland County, crossing the county line just south of Lindsey Street/Little River Road. The tornado was becoming narrower quickly as it crossed the county line, from a maximum of 2200 yard width in Cleveland County to about 750 yards wide as it crossed the county line and continued to become narrower until dissipating about 3/4 mile after moving into Pottawatomie County. A home and a mobile home had shingle and siding damage, and trees and power poles were also damaged.

Tornado event in POTTAWATOMIE County, OKLAHOMA
Start: 19-APR-23 21:39:00
End: 19-APR-23 21:40:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: The eighteenth and final tornado of this outbreak developed northeast of Johnson, or from 1 mile northwest to 1 mile west of Garden Grove. This tornado moved south near and just west of Econtuchka Road dissipating just southwest of the intersection of Econtuchka Road and Wolverine Road. A home received roof damage, an outbuilding was destroyed and trees were damaged along the path.
Episode narrative: A very strong system developed on the morning of March 31st and tracked across the state of Iowa. This system pulled unseasonably warm and moist air into the Midwest, which combined with a very favorable wind profile to create a volatile environment for severe thunderstorms.  Discrete supercell thunderstorms occurred initially, but quickly transitioned into a QLCS mode. This system produced a historic tornado outbreak for the area, with a record 29 tornadoes on the day, including 13 rated EF-2, 1 rated EF-3, and 1 rated EF-4. This was the first EF-4 tornado in the NWS Quad Cities service area since 1995. 11 injuries were reported, with no known fatalities. In addition to the numerous tornadoes, there were many large hail and damaging wind reports. Maximum straight line thunderstorm winds were estimated at 80 to 90 mph.

Tornado event in BENTON County, IOWA
Start: 31-MAR-23 15:51:00
End: 31-MAR-23 15:53:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A small, distinct tornado path was identified northwest of Urbana, Iowa, after analyzing post-event Sentinel satellite data. There was no observable damage to assign an EF-scale rating.
Episode narrative: Broad troughing was present aloft across the Western US during the afternoon/evening of the 19th. An area of surface low-pressure slowly deepened and moved towards north-central Kansas, with dryline extending from central Kansas through western-north Texas by the late afternoon hours. A well-timed lead upper wave, combined with broken insolation, led to the development of a few supercell thunderstorms across central Oklahoma. Multiple instances of large to very large (>2 inches) hail, along with 18 tornadoes, occurred across central Oklahoma.

Tornado event in POTTAWATOMIE County, OKLAHOMA
Start: 19-APR-23 20:39:00
End: 19-APR-23 21:14:00
Direct deaths: 0
Property damage: 4.00M
Event narrative: The Shawnee Tornado was the seventeenth tornado of this outbreak. This large, mulitple-vortex tornado initially developed near New Hope Road and Gaddy Road just southeast of Bethel Acres. It moved northeast quickly become a large tornado with a width of up to 1.3 miles. The tornado moved northeast into Shawnee, then turned north moving through western and northern portions of Shawnee with damage at Oklahoma Baptist University, areas near the Shawnee Mall near Interstate 40 and Kickapoo Street, and numerous locations in Shawnee. The large tornado continued north and north-northwest producing damage along both Kickapoo Street and Leo Road all the way north to the Lincoln County line. The tornado moved into Lincoln County just west of Kickapoo Street and dissipated soon after.
Episode narrative: As an upper-level low approached Middle Tennessee on June 11, 2023, it along with warm, moist air, plenty of instability, and deep wind shear helped to set the stage for severe weather across much of the area. Before a line of thunderstorms along a cold front arrived, however, the thunderstorms that developed ahead of it brought the first and most significant round of severe weather. These thunderstorms developed strong mesocyclones that were able to produce large hail and damaging winds. Several reports of hail larger than one inch were received with the largest hailstone about 1.75 inches in Pickett County. It was across the Cumberland Plateau where favorable amounts of helicity were also present where three tornadoes occurred. All three were rated EF-1, but one of these tornadoes in Fentress County was on the ground for nearly 11 miles. Fortunately, no injuries or fatalities were reported.

Tornado event in FENTRESS County, TENNESSEE
Start: 11-JUN-23 15:30:00
End: 11-JUN-23 15:49:00
Direct deaths: 0
Property damage: 500.00K
Event narrative: This EF-1 tornado touched down south of the Jamestown Municipal Airport near Highway 127 and traveled over 11 miles toward the east-northeast before lifting near Charley Hull Loop Road. The tornado uprooted and snapped hundreds of trees along the path. Over a dozen outbuildings and barns were completely destroyed, and several houses sustained roof and window damage. Local residents captured the tornado on video. High resolution satellite imagery was very helpful in determining the path of this tornado. No injuries or fatalities were reported. Damages are a rough estimate.

Tornado event in CUMBERLAND County, TENNESSEE
Start: 11-JUN-23 15:59:00
End: 11-JUN-23 16:03:00
Direct deaths: 0
Property damage: 250.00K
Event narrative: This EF1 tornado touched down near Highway 70 about 3.6 miles northwest of downtown Crossville. A home on the south side of Highway 70 west of Ivey Road was destroyed when it slid off its foundation which it was not properly attached to, and a couple of outbuildings were destroyed on the north side of the highway. The tornado weakened as it moved northeast, but was widely visible and several local residents captured it on video. The tornado crossed Interstate 40 and caused minor damage to a hotel roof before lifting near Highway 127. No injuries or fatalities were reported. Damages are a rough estimate.
Episode narrative: Numerous strong to severe thunderstorms impacted Central Alabama during the morning and afternoon hours of Thursday, January 12th, 2023. Several supercell thunderstorms spawned multiple tornadoes which caused significant damage in many areas. The severe thunderstorms also produced damaging straight-line winds and hail up to golf ball size.

Tornado event in HALE County, ALABAMA
Start: 12-JAN-23 10:03:00
End: 12-JAN-23 10:04:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: National Weather Service meteorologists surveyed damage in northwest Hale County and determined that it was consistent with an EF1 tornado, with maximum winds near 90 mph. This tornado originated in Greene County and crossed a winding Black Warrior River and in and out of Hale County several times. The tornado produced some uprooted and snapped trees along the river banks.
Episode narrative: A stalled front over northern portions of the area combined with favorable wind shear and instability led to the development of severe thunderstorms. Two tornadoes developed along with several reports of large hail.

Tornado event in WILCOX County, ALABAMA
Start: 26-MAR-23 19:30:00
End: 26-MAR-23 19:32:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: The third and final tornado in this cyclic supercell developed to the south of the occluding second tornado. This tornado began southwest of Highway 10 East where it quickly grew in size and intensified as it curved to the north, reaching a max width of 300 yards. Based on numerous uproots and snaps visible on high resolution Worldview satellite imagery, the tornadoes intensity is estimated to have peaked here at around 110mph. The tornado narrowed as it moved over Pursley Creek and weakened to EF0 intensity as it crossed Highway 10 East, downing a couple of trees as it crossed. From here the tornado remained weak intermittently damaging trees visible on worldview satellite imagery up to its crossing of highway 28 East. It appears the tornado lifted at this point as satellite imagery revealed no damage past the highway. Ground survey crew were able to assess the damage point at Highway 28 East where a couple trees were snapped and damaged powerlines.
Episode narrative: A surface low moved east-northeastward from southern Lake Michigan to Lake Ontario during the morning through early afternoon of April 1st. Simultaneously, the low's trailing cold front moved from the southwestern Great Lakes and Middle MS Valley toward central NY and the Upper OH Valley. Scattered multicell showers and thunderstorms persisted generally northeastward and eastward ahead of, along, and just behind the surface cold front during the wee hours of the 1st and again during the late morning through early afternoon of the 1st. These showers and storms encountered moderate to strong effective bulk shear, weak DCAPE, and weak MUCAPE that increased somewhat and transitioned from elevated to surface-based by late morning as the boundary layer destabilized via daytime heating. Despite the marginally-favorable thermodynamic environment, showers and storms generated sporadic damaging convective gusts and a tornado during the wee hours of the 1st. Additional straight-line convective wind damage occurred during the late morning through early afternoon of the 1st.

Tornado event in CRAWFORD County, OHIO
Start: 01-APR-23 00:47:00
End: 01-APR-23 00:50:00
Direct deaths: 0
Property damage: 70.00K
Event narrative: A brief EF0 tornado with estimated peak winds of 85 mph impacted Crawford County. The tornado began five-miles ENE of Sycamore, ended four-miles west of Chatfield, and caused damage along and near the Wheeling and Lake Erie Railroad. As the tornado moved eastward, the roof of a barn was damaged near County Road 100 and then a large dairy barn was damaged and displaced. Farther east, the tornado ripped a silo's bolts from a concrete pad and the silo was displaced onto railroad tracks, where a westward-moving train collided with the silo. Even farther east, a two-car garage was damaged and several two-by-fours were impaled into the ground and roof of a nearby house.
Episode narrative: A very warm and moist airmass developed ahead of an approaching strong cold front. Showers and thunderstorms developed ahead of the front and moved across the area. The storms produced three tornadoes along with a swath of wind damage stretching from the I-65 corridor in Conecuh County o far southeastern Crenshaw County.

Tornado event in COVINGTON County, ALABAMA
Start: 12-JAN-23 14:24:00
End: 12-JAN-23 14:28:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: Additional tornado discovered via Planet Satellite Imagery from the same supercell that spawned several other tornadoes along its track across the CWA on 1/12/2023. This tornado began near Turkey Creek Road carving a narrow path of intermittent tree damage eastward across Johnson Road and Oakey Streak Road. The tornado likely lifted just after this point where visible damage on satellite imagery becomes indiscernible. This tornado was given an EF-U rating given there was no available high-resolution imagery to reveal what types of DI's could be used. If high resolution imagery becomes available, we may be able to assess this tornado's intensity.
Episode narrative: A tornadic thunderstorm developed over far southern Campbell County and tracked east-northeast into Weston County. The storm produced a large F-2 tornado that moved over the North Antelope Rochelle Coal Mine in far southeastern Campbell County, causing considerable damage and minor injuries at the mine. Large hail and wind gusts over 80 mph accompanied the storm.

Tornado event in WESTON County, WYOMING
Start: 23-JUN-23 17:45:00
End: 23-JUN-23 18:20:00
Direct deaths: 0
Event narrative: A tornado continued from southeastern Campbell County into southwestern Weston County. It blew down some trees along a ridge, a tree at a residence, and some windbreak panels and ripped off part of a house roof. The width of the tornado through Weston County was estimated.
Episode narrative: A severe line of thunderstorms rolled through north Alabama during the late evening hours of the 24th into the early morning hours of the 25th, producing 7 tornadoes. An embedded supercell thunderstorm with a history of tornadoes in Mississippi moved east-northeast across northwest Alabama, yielding another two tornadoes in Lauderdale County in Florence and near Anderson. Associated with this line, multiple narrow swaths of intense damaging winds of 60 to 90 mph occurred across the Shoals metro area, including Sheffield, Tuscumbia, Muscle Shoals and Florence.  The winds caused widespread power outages, damaged numerous structures, and toppled or snapped numerous trees, power poles and power lines. A few trees and power poles were dropped onto residences and vehicles, either destroying or heavily damaging them. Roof damages were reported at many locations as well. All told, an estimated #### million in damages occurred, the majority in northwest Alabama in Colbert and Lauderdale Counties.  As the line continued east, additional tornadoes were spawned in Lawrence, Morgan, Jackson and DeKalb Counties.

Tornado event in JACKSON County, ALABAMA
Start: 25-MAR-23 00:28:00
End: 25-MAR-23 00:33:00
Direct deaths: 0
Property damage: 5.50M
Event narrative: Aerial surveillance provided by Jackson County Emergency Management Agency (EMA), supplemented by a ground survey of National Weather Service personnel and DeKalb County EMA confirmed an EF-1 tornado near the Flat Rock area.

The tornado touched down southwest of CR 81, north of Flat Rock near Fabius Poultry. Multiple chicken houses sustained roof damage at this location. The tornado tracked east toward CR 81 where numerous softwood trees were uprooted. The final damage point was east of Highway 117 where a possible ground scar was noted. Damage was then reported along and between Highway 71 and CR 326 to the county line. Uprooted trees and minor structure damage was observed in this location.
Episode narrative: A strong low-pressure system which had been slowly moving east off the Rocky Mountains finally progressed into central Nebraska. This left eastern Nebraska in the warm sector as a warm front moved north into the area. The SPC issued an Enhanced Risk for severe weather with a 30% hatched for severe hail. There ended up being 19 confirmed tornadoes (3 EF2, 8 EF1, 4 EF0, 4 EFU). There were numerous hail reports the largest of which was 4.5 inches in Pawnee County. Another 4-inch report was received in Richardson County. Flash flooding was also observed in a few locations.

Tornado event in BURT County, NEBRASKA
Start: 12-MAY-23 17:09:00
End: 12-MAY-23 17:19:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: This is part 2 of a tornado that started in Dodge County. After doing damage to trees along County Road E in Burt County.  The tornado continued The tornado appears to have dissipated just north of Country Road F in Burt County before developing a new tornado just to the north. Additionally, a satellite tornado was reported at the end of this tornadoes life cycle. just east of this dissipating tornado.