torre126/tornado-structure-data huggingface dataset:
Episode narrative: A potent upper-level trough progressed from the Four-Corners Region into the Texas Panhandle by late in the afternoon on March 2nd. Strong warm and moist air advection was ongoing in advance of the trough earlier in the morning. This resulted in scattered convection, but this had little effect on increasing instability through the afternoon as temperatures warmed into the mid and upper 70s to lower and mid 80s. Additionally, backing surface winds also promoted increasing low-level shear as well as deep-layer shear with a 50-60 knot low-level jet surging east ahead of the trough and advancing cold front. This environment was supportive of several supercells that developed by late afternoon into the early evening hours, producing several tornadoes in addition to large hail and damaging wind gusts. As the cold front surged east of I-35 by early in the evening, the storm mode eventually became more linear with an increasing threat of more widespread damaging winds along the complex of storms while the threats of large hail and isolated tornadoes continued through the end of the event.

Tornado event in CASS County, TEXAS
Start: 02-MAR-23 17:34:00
End: 02-MAR-23 17:35:00
Direct deaths: 0
Property damage: 25.00K
Event narrative: This EF-1 tornado, with estimated maximum winds near 104 mph, occurred in the very rural southeastern portion of Cass County, well south of the city of Atlanta. A majority of the concentrated damage occurred at the start of the tornado along FM Road 251, where the tornado downed or snapped many hardwood and softwood trees. The tornado continued northward for another mile, crossing County Road 4556 and then ending as it crossed County Road 4555. There were a few outbuildings damaged by the wind with some homes and other structures also damaged, mainly due to impact from large limbs and trees falling on top of them. Fortunately, there were no injuries or fatalities associated with the tornado.
Episode narrative: Thunderstorms developed along a dryline, and eventually a Pacific cold front, the afternoon of Thursday March 16. Large hail, damaging winds, and a three EF-1 tornadoes all occurred in some of these storms as they pushed east and southeast across the region that evening. Activity exited to the east and south by midnight that night.

Tornado event in DALLAS County, TEXAS
Start: 16-MAR-23 15:47:00
End: 16-MAR-23 15:55:00
Direct deaths: 0
Event narrative: A tornado formed in the extreme northern portions of the City of Grand Prairie, in a distribution facility area near West Trinity Boulevard and Trinity Ridge Drive.  A section of roofing was peeled off of a warehouse in this area, and scattered tree damage was evident due to EF-0 winds of 65-80 mph.  The tornado moved southeast, then east and entered the southern portion of the City of Irving, where an apartment building was impacted along Shady Grove Road just east of Beltline Road.  Roof damage at this apartment complex was consistent with maximum EF-1 windspeeds of 105 mph. The tornado continued east, roughly paralleling Shady Grove Road and producing tree and light shingle damage consistent with EF-0 windspeeds.  The track continued eastward through Irving neighborhoods, crossing MacArthur Boulevard, with intermittent tree damage.  The tornado produced some light structural damage to a discount store and adjacent city building near Nursery Road and East 6th Street, then dissipated shortly thereafter.

Tornado event in DALLAS County, TEXAS
Start: 16-MAR-23 15:52:00
End: 16-MAR-23 15:56:00
Direct deaths: 0
Event narrative: A brief tornado formed in the central portion of the City of Irving, near the intersection of MacArthur Boulevard and State Highway 183.  Near this formation point, an auto dealership sustained damage to the roof and front facade of the main showroom building. An adjacent power pole was also pushed over. Damage at this dealership was consistent with low end EF-1 intensity windspeeds of approximately 105 mph. The tornado moved northeast through adjacent apartment complexes and residential areas, producing tree damage and occasional roof damage consistent with 65-80 mph winds. The tornado dissipated near the intersection of Rochelle Road and O'Conner Road.
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 ahead of the front 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. As this event crossed over into a new month, this event will be continued in April 2023.

Tornado event in WAYNE County, TENNESSEE
Start: 31-MAR-23 22:56:00
End: 31-MAR-23 23:18:00
Direct deaths: 0
Property damage: 550.00K
Event narrative: This major, long track tornado began in National Weather Service Memphis's area as an EF3 tornado in Hardeman, McNairy, and Hardin counties before entering Wayne County as an EF2 tornado. The tornado entered National Weather Service Nashville's area about two miles south of Clifton and continued northeast, passing across Highway 641 near Tom Holt Road where several homes and outbuildings were heavily damaged and dozens of trees blown down. Further northeast, the tornado struck the Leatherwood community along Beech Creek Road where a few poorly constructed homes were leveled and others heavily damaged. One person was critically injured in this area and airlifted to the hospital, and another person was also injured. The tornado then crossed Highway 13 about six miles north of Waynesboro before moving through the Topsy and Ashland communities, snapping and uprooting hundred of more trees. This tornado then continued into Lewis County. Damages are estimated for Wayne County.
Episode narrative: Two rounds of strong to severe thunderstorms spawned 13 tornadoes across central Illinois during the afternoon and evening of March 31st...including an EF-3 tornado that killed 3 people in Robinson in Crawford County.  The first round of convection developed along a warm front lifting northeastward through the area during the afternoon.  These storms were primarily very large hail-producers, with up to baseball-sized (2.75 diameter) hail being reported in the town of Banner in Fulton County.  Once the warm front lifted into northern Illinois, a modestly unstable but highly sheared environment was in place during the late afternoon and evening...with CAPE values of 1500-2500J/kg and 0-6km bulk shear in excess of 70kt.  As a trailing cold front approached from the west, additional supercell thunderstorms developed that produced tornadoes, very large hail, and damaging wind gusts.  The cells eventually congealed into a broken line as they pushed eastward to the I-57 corridor by mid-evening.  Meanwhile, a discrete supercell ahead of the line tracked south of I-70, dropping the EF-3 tornado in Crawford County.

Tornado event in SANGAMON County, ILLINOIS
Start: 31-MAR-23 17:12:00
End: 31-MAR-23 17:20:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A tornado touched down in an open field one mile northwest of Sherman at 6:12 PM CDT.  It tracked northeastward, causing damage to two houses and two outbuildings before crossing I-55.  The tornado caused severe roof and siding damage to numerous homes and damaged many outbuildings and detached garages in a subdivision immediately east of I-55.  It continued northeastward into a largely rural area, damaging two large barns at a horse farm and throwing sheet metal into open fields before dissipating just west of Wolf Creek about 2 miles southeast of Williamsville at 6:20 PM CDT.

Tornado event in SANGAMON County, ILLINOIS
Start: 31-MAR-23 17:18:00
End: 31-MAR-23 17:32:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A tornado touched down near the intersection of Overpass Road and Old Route 36 about 1 mile east-southeast of Riverton at 6:18pm CDT.  The tornado tracked northeastward, completely removing the roof from a business and causing damage to trees and outbuildings before crossing into southern Logan County at 6:32pm CDT.
Episode narrative: Thunderstorms developed along a dryline, and eventually a Pacific cold front, the afternoon of Thursday March 16. Large hail, damaging winds, and a three EF-1 tornadoes all occurred in some of these storms as they pushed east and southeast across the region that evening. Activity exited to the east and south by midnight that night.

Tornado event in NAVARRO County, TEXAS
Start: 16-MAR-23 18:58:00
End: 16-MAR-23 19:04:00
Direct deaths: 0
Event narrative: A tornado formed on the northern outskirts of Corsicana in Navarro County, west of the intersection of County Road 0010 and County Road 0018.  After producing tree damage in an open field, the tornado moved southeast and significantly damaged a single family residence near the intersection of County Road 0010 and County Road 0017 in far northern Corsicana.  Sections of shingles and some wood roof sheathing were removed or damaged, and tree damage was substantial. Damage here was consistent with EF-1 winds of 95-100 mph.  On an adjacent plot of land, a large trailer was rolled twice, resulting in the serious injury of two adult occupants. The track continued southeast, producing intermittent EF-0 intensity tree damage of 65-75 mph in north Corsicana. In its latter stages, the tornado veered east, crossing Business 45 and producing more significant tree damage before dissipating shortly before reaching Interstate 45.
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 BRISTOL County, MASSACHUSETTS
Start: 18-AUG-23 08:07:00
End: 18-AUG-23 08:22:00
Direct deaths: 0
Property damage: 30.00K
Event narrative: The storm that produced the Rhode Island tornado produced a second tornado as it crossed into Massachusetts, just over the Cumberland line in North Attleborough. 

Many trees were snapped or uprooted on Mendon Road near the intersection of Monticello Drive. An eyewitness saw swirling debris before taking shelter in her home. From there, damage was more sporadic. A home on Mary Ann Way had its third floor window blown in. Additionally, there were a number of downed or snapped trees on Lisa Drive. The tornado then lifted briefly before touching back down in Mansfield along Gilbert Street, where it sheared several large trees near their tops, one of which fell on a car. An air conditioning unit, estimated to have weighed 1000 pounds, was knocked over on the roof of a one-story commercial building.
Episode narrative: Two rounds of strong to severe thunderstorms spawned 13 tornadoes across central Illinois during the afternoon and evening of March 31st...including an EF-3 tornado that killed 3 people in Robinson in Crawford County.  The first round of convection developed along a warm front lifting northeastward through the area during the afternoon.  These storms were primarily very large hail-producers, with up to baseball-sized (2.75 diameter) hail being reported in the town of Banner in Fulton County.  Once the warm front lifted into northern Illinois, a modestly unstable but highly sheared environment was in place during the late afternoon and evening...with CAPE values of 1500-2500J/kg and 0-6km bulk shear in excess of 70kt.  As a trailing cold front approached from the west, additional supercell thunderstorms developed that produced tornadoes, very large hail, and damaging wind gusts.  The cells eventually congealed into a broken line as they pushed eastward to the I-57 corridor by mid-evening.  Meanwhile, a discrete supercell ahead of the line tracked south of I-70, dropping the EF-3 tornado in Crawford County.

Tornado event in CHAMPAIGN County, ILLINOIS
Start: 31-MAR-23 18:39:00
End: 31-MAR-23 18:48:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A tornado touched down three miles south of Dewey at 7:39 PM CDT.  The tornado tracked northeastward, causing significant damage to a business on US-136 between Fisher and Rantoul.  It struck a few vehicles as it crossed I-57 before dissipating just south of the intersection of County Road 3400 North and County Road 1800 East about 1 mile south-southeast of Ludlow at 7:48 PM CDT.
Episode narrative: A potent upper-level trough progressed from the Four-Corners Region into the Texas Panhandle by late in the afternoon on March 2nd. Strong warm and moist air advection was ongoing in advance of the trough earlier in the morning. This resulted in scattered convection, but this had little effect on increasing instability through the afternoon as temperatures warmed into the mid and upper 70s to lower and mid 80s. Additionally, backing surface winds also promoted increasing low-level shear as well as deep-layer shear with a 50-60 knot low-level jet surging east ahead of the trough and advancing cold front. This environment was supportive of several supercells that developed by late afternoon into the early evening hours, producing several tornadoes in addition to large hail and damaging wind gusts. As the cold front surged east of I-35 by early in the evening, the storm mode eventually became more linear with an increasing threat of more widespread damaging winds along the complex of storms while the threats of large hail and isolated tornadoes continued through the end of the event.

Tornado event in NACOGDOCHES County, TEXAS
Start: 02-MAR-23 22:51:00
End: 02-MAR-23 22:58:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: An EF-1 tornado with estimated maximum winds near 100 mph touched down about 8 miles to the north northeast of Nacogdoches near the Appleby community. Damage to trees was seen along FM Road 2864 along and north of County Road 106 where large trees were either uprooted or snapped at their trunks. From there, the tornado tracked to the northeast where additional damage was found near County Road 125 and County Road 127 just north of US Highway 59. The tornado caused some additional tree damage off Hidden Valley Drive just to the south and east of US Highway 59 before lifting shortly thereafter.
Episode narrative: An occluded surface low meandered near the eastern shore of Lake Superior during the late morning through early evening of the 12th. Simultaneously, the trailing cold front swept southeastward from southeastern Lower MI and northern IN to central Lake Erie and north-central/west-central portions of OH. Multiple multicell thunderstorms and a supercell thunderstorm occurred ahead of the cold front in northwest PA. These storms produced small hail, damaging convective gusts, and a tornado in a warm sector comprised of moderate to strong MUCAPE and effective bulk shear, respectively, mixed-layer lifting condensation levels near 750 to 1500 meters AGL, and strong surface-based effective storm-relative helicity near 150 meters squared per second squared.

Tornado event in ERIE County, PENNSYLVANIA
Start: 12-AUG-23 12:24:00
End: 12-AUG-23 12:25:00
Direct deaths: 0
Property damage: 5.00K
Event narrative: A brief EF0 tornado with estimated peak winds of 70 mph moved generally southeastward on the southeastern outskirts of Union City. The tornado began just northeast of the intersection of O'Neil Road and Concord Road, and ended before reaching Concord Road. The tornado damaged several trees. One of these trees was downed onto a home, which caused minor structural damage.
Episode narrative: A complex storm system brought severe weather to parts of northeast Iowa during the late afternoon of Friday, March 31, 2023. Reports of 1.0 to 1.25 inch hail were reported in Mitchell and Floyd Counties. The largest hail reported was half dollar in Stacyville (Mitchell County) and Colwell (Floyd County). An EF0 tornado entered rural Clayton County out of Delaware County near Edgewood and dissipated shortly thereafter, resulting in minimal damage.

Tornado event in CLAYTON County, IOWA
Start: 31-MAR-23 16:45:00
End: 31-MAR-23 16:47:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A tornado developed in Delaware County, crossed into Clayton County between Edgewood and Colesburg, and crossed Horseshoe Road before dissipating.
Episode narrative: Two rounds of strong to severe thunderstorms spawned 13 tornadoes across central Illinois during the afternoon and evening of March 31st...including an EF-3 tornado that killed 3 people in Robinson in Crawford County.  The first round of convection developed along a warm front lifting northeastward through the area during the afternoon.  These storms were primarily very large hail-producers, with up to baseball-sized (2.75 diameter) hail being reported in the town of Banner in Fulton County.  Once the warm front lifted into northern Illinois, a modestly unstable but highly sheared environment was in place during the late afternoon and evening...with CAPE values of 1500-2500J/kg and 0-6km bulk shear in excess of 70kt.  As a trailing cold front approached from the west, additional supercell thunderstorms developed that produced tornadoes, very large hail, and damaging wind gusts.  The cells eventually congealed into a broken line as they pushed eastward to the I-57 corridor by mid-evening.  Meanwhile, a discrete supercell ahead of the line tracked south of I-70, dropping the EF-3 tornado in Crawford County.

Tornado event in TAZEWELL County, ILLINOIS
Start: 31-MAR-23 13:37:00
End: 31-MAR-23 13:38:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A tornado briefly touched down near the intersection of Spring Lake Road and State Park Road about 3 miles southeast of Banner at 2:37 PM CDT before quickly dissipating.  No damage was observed.
Episode narrative: Two rounds of strong to severe thunderstorms spawned 13 tornadoes across central Illinois during the afternoon and evening of March 31st...including an EF-3 tornado that killed 3 people in Robinson in Crawford County.  The first round of convection developed along a warm front lifting northeastward through the area during the afternoon.  These storms were primarily very large hail-producers, with up to baseball-sized (2.75 diameter) hail being reported in the town of Banner in Fulton County.  Once the warm front lifted into northern Illinois, a modestly unstable but highly sheared environment was in place during the late afternoon and evening...with CAPE values of 1500-2500J/kg and 0-6km bulk shear in excess of 70kt.  As a trailing cold front approached from the west, additional supercell thunderstorms developed that produced tornadoes, very large hail, and damaging wind gusts.  The cells eventually congealed into a broken line as they pushed eastward to the I-57 corridor by mid-evening.  Meanwhile, a discrete supercell ahead of the line tracked south of I-70, dropping the EF-3 tornado in Crawford County.

Tornado event in MORGAN County, ILLINOIS
Start: 31-MAR-23 16:27:00
End: 31-MAR-23 16:28:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A tornado briefly touched down north of Chapin Cemetery at 5:27 PM CDT before quickly dissipating.  No damage was observed.
Episode narrative: An occluded surface low meandered near the eastern shore of Lake Superior during the late morning through early evening of the 12th. Simultaneously, the trailing cold front swept southeastward from southeastern Lower MI and northern IN to central Lake Erie and north-central/west-central portions of OH. Multiple multicell and supercell thunderstorms occurred along and ahead of the cold front in northern OH. These storms produced severe hail, damaging convective gusts, and two tornadoes in a warm sector comprised of moderate to strong MUCAPE and effective bulk shear, respectively, mixed-layer lifting condensation levels near 750 to 1500 meters AGL, and strong surface-based effective storm-relative helicity near 150 meters squared per second squared.

Tornado event in MARION County, OHIO
Start: 12-AUG-23 12:13:00
End: 12-AUG-23 12:14:00
Direct deaths: 0
Property damage: 23.00K
Event narrative: A brief EF1 tornado with estimated peak winds of 90 mph occurred just south of the intersection of OH-309 and Dry Lane Road North in the La Rue area. As the tornado moved east-northeastward, it caused damage at a residential property along Dry Lane Road North. A portion of an outbuilding's roof was torn-off and several trees were damaged.
Episode narrative: During the afternoon of May 06 a weak frontal boundary was draped across western Minnesota. Afternoon clearing allowed a few hundred Joules of MLCAPE to develop, and storm relative helicity increased along and north of the boundary. A few rotating thunderstorms developed and produced several brief, weak tornadoes, along with one report of quarter size hail. This was a low end severe weather event, with little impacts.

The only damage report was to an out building. Video shows part of the roof being blown off.

Tornado event in RENVILLE County, MINNESOTA
Start: 06-MAY-23 17:31:00
End: 06-MAY-23 17:33:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: At 1831 CST storm chaser video confirmed a weak tornado developed near 260th St in Renville County. This storm continued into Kandiyohi county towards the city of Prinsburg, MN. No injuries or damages were reported.

Tornado event in KANDIYOHI County, MINNESOTA
Start: 06-MAY-23 17:33:00
End: 06-MAY-23 17:36:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: This segment is a continuation of the tornado that initially spun up in the Renville County and tracked into southern Kandiyohi County. At approximately 1833 CST this storm crossed the southern border of Kandiyohi County towards the town of Prinsburg, MN before lifting at 1836CST. AT 1834CST the local fire department reported this tornado in an open field southeast of Prinsburg. There were no reports of damage or fatalities with this storm.