torre126/tornado-structure-data huggingface dataset:
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 VERMILION County, ILLINOIS
Start: 31-MAR-23 18:57:00
End: 31-MAR-23 19:04:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A tornado touched down in a field northeast of the intersection of East 3700 North Road and County Road 2800 East about 4 miles south-southwest of Rankin at 7:57pm CDT.  The tornado tracked northeastward, uprooting trees and damaging a shed before crossing into the National Weather Service Chicago County Warning Area (CWA) in southern Iroquois County at 8:04pm CDT.

Tornado event in JASPER County, ILLINOIS
Start: 31-MAR-23 19:58:00
End: 31-MAR-23 20:03:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A tornado touched down in a field southwest of the intersection of East 390th Avenue and North 1700th Street about 2 miles southwest of Sainte Marie at 8:58pm CDT.  The tornado tracked northeastward, causing sporadic tree damage before crossing into western Crawford County between East 500th Avenue and East 600th Avenue at 9:03pm CDT.
Episode narrative: A wet system brought periods of heavy rain with flooding. There was 1 to 2 feet of snow accumulated above 6,500 feet, locally higher on some peaks. Heavy rain fell bringing widespread roadway flooding, as well as local mudslides, flash flooding, with evacuations ordered in some areas. Thunderstorms with large hail, strong damaging winds and tornadoes were reported. Strong winds gusting to 55 to 75 mph brought down numerous trees and powerlines across the area, causing widespread and extended power outages.

Tornado event in TUOLUMNE County, CALIFORNIA
Start: 11-MAR-23 14:52:00
End: 11-MAR-23 14:53:00
Direct deaths: 0
Property damage: 20.00K
Event narrative: Numerous hardwood trees snapped or uprooted. A wooden power pole snapped in half.  NWS Storm Survey determined it to be rated EF-1 with 90 mph winds.
Episode narrative: An upper level disturbance kicked off a round of nocturnal thunderstorms during the overnight hours of Thursday March 23 into Friday March 24. Storms were focused along both a dryline as it entered from the west, and a cold front as it entered from the northwest. Severe storms produced damaging winds and hail, and two EF-1 tornadoes occurred that resulted in 3 injuries.

Isolated thunderstorms also occurred within a plume of Pacific moisture on March 27, but these storms remained sub-severe.

Tornado event in PARKER County, TEXAS
Start: 24-MAR-23 03:52:00
End: 24-MAR-23 03:58:00
Direct deaths: 0
Event narrative: The tornado developed on the southwest side of Whitt near Bounty Rd where an untethered large RV trailer was rolled upside down. There were 2 injuries reported with the damage in this area. Tree damage spans from Whitt Cut Off Road to Middleton Road and includes snapped trunks and large broken branches. As the tornado moved northeast towards the Wise County line, it caused damage to the roof of a metal building near Leech Road and rolled another untethered large RV trailer on its side along Lone Star Rd. The tornado appears to have lifted before reaching Advance Rd. Maximum estimated winds were 100 mph.

Tornado event in PARKER County, TEXAS
Start: 24-MAR-23 03:56:00
End: 24-MAR-23 03:59:00
Direct deaths: 0
Event narrative: The tornado developed along Pine Road west of Poolville, where the roof of a single family home sustained damaged. As the tornado tracked northeast, it produced extensive damage to trees across the northwestern side of Poolville including snapped trunks and uprooted trees. Structural damage includes the uplift and overturning of a metal garage structure near the intersection of Pine Road and Lone Star Road, roof and siding damage to a few single family residences, and the complete collapse of a large covered pavilion roof near the Poolville Cemetery. The tornado continued to move north-northeast towards the Wise County line producing additional damage to trees and several outdoor buildings along Clover Drive. Multiple manufactured homes along and just south of Highway 199 were damaged as the tornado crossed the county line, and 3 injuries reported in Wise County with damage in this area. The tornado appears to have lifted as it crossed Highway 199 with isolated damage noted beyond the end of the tornado track.
Episode narrative: Supercells erupted during the late afternoon and early evening hours in northern Mississippi and spread east across north Alabama during the rest of the evening into the overnight hours.  At least one tornado was determined to produce damage in northern Madison County near New Market. Other reports of damaging winds were reported. The other impact from this evening was excessive rainfall and flash flooding. A band of 3-6 inch rainfall occurred from northwest into north central Alabama, resulting in several area creeks and small streams going into flood.

Tornado event in MADISON County, ALABAMA
Start: 01-MAR-23 22:32:00
End: 01-MAR-23 22:33:00
Direct deaths: 0
Event narrative: An EF-1 tornado with peak winds estimated at 110 mph caused a significant amount of damage to structures along Short Track Drive in New Market. The tornado formed east of Roy Davis Road and lifted just east of Short Track Road. Several  houses experienced roof damage with greater than 20% loss along with a pickup truck that tipped over. One single family residence had significant roof loss, but walls remained intact. This prompted the rating of a high-end EF-1.
Episode narrative: A weak trough brought severe straight line winds and weak tornadoes embedded in a line of severe thunderstorms.

Tornado event in LEE County, VIRGINIA
Start: 16-MAY-23 16:17:00
End: 16-MAY-23 16:18:00
Direct deaths: 0
Event narrative: A small tornado path was surveyed in eastern Lee County, Virginia, approximately 3 miles west-southwest of Pennington Gap along Poor Valley Ridge near Left Poor Valley Road. Hardwood trees were snapped in a short path following the ridgeline parallel to Left Poor Valley Road.

Tornado event in LEE County, VIRGINIA
Start: 16-MAY-23 16:27:00
End: 16-MAY-23 16:28:00
Direct deaths: 0
Event narrative: A NWS survey team found that a tornado touched down on the northwest side of a ridge line south of US Highway 23 near Highway 58 and ended before crossing US 23. The tornado crossed a ridge while uprooting trees before lifting near Old Ridge Road.

Tornado event in SCOTT County, VIRGINIA
Start: 16-MAY-23 16:33:00
End: 16-MAY-23 16:34:00
Direct deaths: 0
Event narrative: An EF1 tornado touched down on the northwest side of the ridge south of US Highway 23 and ended before crossing the highway. The tornado primarily uprooted softwood trees along its path.
Episode narrative: An area of low pressure tracking northeastward across Iowa pushed a cold front into central Illinois during the afternoon of January 3rd.  The arimass ahead of the front became moderately unstable thanks to surface temperatures climbing into the lower to middle 60s and dewpoints hovering near 60 degrees.  Given the instability and increasing amounts of deep-layer wind shear in association with a strong upper low approaching from the west, scattered supercell thunderstorms developed along the front during the afternoon.  The storms were primarily focused in a corridor from Springfield and Taylorville northeastward to near Champaign.  A total of 8 short-lived weak tornadoes touched down within this corridor, with the strongest tornadoes producing EF-1 damage near Maroa and in the Decatur area.

Tornado event in MACON County, ILLINOIS
Start: 03-JAN-23 18:00:00
End: 03-JAN-23 18:01:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A tornado touched down on the northeast side of Decatur at 6:00 PM CST.  The tornado tracked northeastward, causing damage to an abandoned bowling alley on North 22nd Street.  Several of the wall panels on the southeast side of the building were removed and blown to the northeast.  A trained spotter watched the tornado cross 22nd Street before lifting at 6:01 PM CST.
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 MILLER County, ARKANSAS
Start: 02-MAR-23 17:58:00
End: 02-MAR-23 18:02:00
Direct deaths: 0
Property damage: 25.00K
Event narrative: An EF-1 tornado with estimated maximum winds near 107 mph affected locations in central Miller County near the Sulphur River Wildlife Management Area and a handful of miles west/southwest of Fouke. The tornado began at the eastern end of Miller County Road 36 very weakly, but soon produced a lot of tree and structural damage along the southeastern terminus of Miller County Road 152. Here the tornado was its strongest and widest, reaching a peak width of around a quarter of a mile. There were several outbuildings damaged or mostly destroyed by the wind alone with some homes and other structures also damaged, but mainly due to impact from large limbs and trees falling on top of them. The tornado continued north for another half a mile before ending roughly as it crossed Miller County Road 151. Fortunately, there were no injuries or fatalities associated with the tornado.
Episode narrative: Storms developed along a stalled frontal boundary on the evening of July 28th. These storms developed in clusters and were slow moving with heavy rain. They also produced sporadic wind damage across northwest Ohio. An EF1 tornado also occurred in Defiance County.

Tornado event in DEFIANCE County, OHIO
Start: 29-JUL-23 01:53:00
End: 29-JUL-23 01:54:00
Direct deaths: 0
Property damage: 55.00K
Event narrative: A ground and drone servey revelaed a tornado touched down at a property west of Casebeer Miller Road and north of Buckskin Raod, and tracked quickly to the northeast, crossing about a third of a mile north of Buckskin Road before dissipating in an area of trees. Several trees were snapped or uprooted, with three barns suffering minor to major damage as well as one home suffering damage to a roof and pool deck. Maximum wind speeds are estimated up to 90 mph.
Episode narrative: An upper level disturbance kicked off a round of nocturnal thunderstorms during the overnight hours of Thursday March 23 into Friday March 24. Storms were focused along both a dryline as it entered from the west, and a cold front as it entered from the northwest. Severe storms produced damaging winds and hail, and two EF-1 tornadoes occurred that resulted in 3 injuries.

Isolated thunderstorms also occurred within a plume of Pacific moisture on March 27, but these storms remained sub-severe.

Tornado event in WISE County, TEXAS
Start: 24-MAR-23 03:59:00
End: 24-MAR-23 04:00:00
Direct deaths: 0
Event narrative: This is a continuation of a tornado that began in Parker County. The tornado developed along Pine Road west of Poolville, where the roof of a single family home sustained damaged. As the tornado tracked northeast, it produced extensive damage to trees across the northwestern side of Poolville including snapped trunks and uprooted trees. Structural damage includes the uplift and overturning of a metal garage structure near the intersection of Pine Road and Lone Star Road, roof and siding damage to a few single family residences, and the complete collapse of a large covered pavilion roof near the Poolville Cemetery. The tornado continued to move north-northeast towards the Wise County line producing additional damage to trees and several outdoor buildings along Clover Drive. Multiple manufactured homes along and just south of Highway 199 were damaged as the tornado crossed the county line. There were 3 injuries reported with damage in this area. The tornado appears to have lifted as it crossed Highway 199 with isolated damage noted beyond the end of the tornado track.
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 14:15:00
End: 31-MAR-23 14:16:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A tornado touched down just west of the intersection of Dee-Mac Road and Harding Road 1 mile west of Deer Creek at 3:15 PM CDT.  The tornado damaged a barn, then quickly dissipated in an open field 1 mile northwest of Deer Creek at 3:16 PM CDT.

Tornado event in WOODFORD County, ILLINOIS
Start: 31-MAR-23 14:23:00
End: 31-MAR-23 14:24:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A tornado briefly touched down in an open field 2.7 miles east of Eureka at 3:23 PM CDT.  No damage was observed.

Tornado event in CHRISTIAN County, ILLINOIS
Start: 31-MAR-23 18:06:00
End: 31-MAR-23 18:08:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A tornado touched down just east of the intersection of East 900 North Road and North 200 East Road about 4 miles north-northwest of Morrisonville at 7:06 PM CDT.  The tornado destroyed several grain bins and carried them across an open field as it tracked northeastward before dissipating south of the intersection of East 1100 North Road and North 600 East Road 3 miles northwest of Palmer at 7:08 PM CDT.
Episode narrative: Strong thunderstorms tracked across the area and became severe in a very moist and unstable airmass. The thunderstorms produced damaging winds, large hail and a couple of weak tornadoes.

Tornado event in BALDWIN County, ALABAMA
Start: 15-JUN-23 23:21:00
End: 15-JUN-23 23:22:00
Direct deaths: 0
Event narrative: A brief EF-0 tornado touched down on the south side of County Road 64, just west of the County Road 66 intersection. The tornado moved southeast and stayed to the south of County Road 64. The end point is estimated. Spotty tree damage was noted along the path, including two large hardwood trees that were uprooted and facing back toward the west.
Episode narrative: Developing showers and thunderstorms produced a brief landspout north of Sherwood, OH.

Tornado event in DEFIANCE County, OHIO
Start: 01-JUL-23 16:42:00
End: 01-JUL-23 16:43:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: EF0 landspout tornado briefly touched down north of Sherwood, Ohio. About two dozen slate shingles were removed from a barn. Also, a large limb and several small limbs were downed. The tornado tracked through a nearby cornfield and dissipated as it tracked northeast into a wooded area.
Episode narrative: Two weak tornadoes developed across the Los Angeles county area. Both tornadoes occurred in near the communities of Carson and Compton. Both events were classified at EF-0 events from official storm surveys.

Tornado event in LOS ANGELES County, CALIFORNIA
Start: 04-MAY-23 07:45:00
End: 04-MAY-23 07:50:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A weak tornado developed in the communities of Carson and Compton. The short-lived, EF-0, tornado impacted the area near the intersection of Avalon Boulevard and East Walnut Street. Minor damage was reported to a couple of buildings and vehicles.
Episode narrative: A moist, southwesterly fetch aloft paralleled a stationary front draped across northeast Tennessee to produce areas of heavy rainfall and flooding, along with severe thunderstorms and tornadoes.

Tornado event in MARION County, TENNESSEE
Start: 02-MAR-23 06:16:00
End: 02-MAR-23 06:17:00
Direct deaths: 0
Event narrative: A swath of trees was blown down in Prentice Cooper State Forest. A survey of the area indicated that the damage was caused by a EF0 tornado, with a path width of approximately 100 yards and a length of approximately 500 yards.
Episode narrative: An isolated storm produced large hail and a brief tornado.

Tornado event in LANE County, KANSAS
Start: 04-MAY-23 20:09:00
End: 04-MAY-23 20:09:00
Direct deaths: 0
Event narrative: Reported by Off duty NWS Employee.
Episode narrative: A potent weather system developed and tracked across the Lower Mississippi River Valley during the evening of November 20. This system and associated convective activity resulted storms that produced hail, wind damage, and several tornadoes.

Tornado event in SIMPSON County, MISSISSIPPI
Start: 20-NOV-23 19:43:00
End: 20-NOV-23 19:44:00
Direct deaths: 0
Property damage: 5.00K
Event narrative: A tornado briefly touched down near Golf Course Road near Sanatorium where some large limbs and small trees were downed. It's maximum wind speed was 70 mph. It's maximum width was 50 yards. It's track length was 0.2 miles.
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 FRANKLIN County, TEXAS
Start: 02-MAR-23 17:00:00
End: 02-MAR-23 17:11:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: An EF-0 tornado was documented by storm chasers touching down between Mount Vernon and Hagansport. The damage survey team found that this tornado produced estimated maximum winds near 80 mph which downed tree limbs of several trees along its 5+ mile long path.

Tornado event in MARION County, TEXAS
Start: 02-MAR-23 17:05:00
End: 02-MAR-23 17:10:00
Direct deaths: 0
Property damage: 25.00K
Event narrative: This EF-1 tornado, with estimated maximum winds near 105 mph, affected the Kellyville community west/northwest of Jefferson, and it mainly tracked north along Kellyville Road. The tornado was as its strongest and widest as it crossed State Highway 49. A majority of the damage was to trees through a combination of uprooting and trunk snapping. There were a few outbuildings damaged or mostly destroyed by the wind with some homes and other structures 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: During the night of March 31 into April 1, a low pressure system, moving east across the Upper Midwest towards the Great Lakes, dragged a trailing cold front through the Lower Ohio Valley. This produced a broken line of severe storms that moved west to east over parts of central Kentucky, resulting in multiple reports of tree damage, isolated structural damage, and a tornado that affected Jefferson and Shelby Counties.

Tornado event in SHELBY County, KENTUCKY
Start: 31-MAR-23 23:33:00
End: 31-MAR-23 23:34:00
Direct deaths: 0
Event narrative: This tornado formed approximately 1.4 miles north of Avoca near the Gene Snyder Freeway and tracked east-northeast for approximately 2.7 miles before exiting Jefferson County and into northwest Shelby County. 

In Shelby County, the twister did sporadic wind damage along Crabapple Lane. Trees were snapped and twisted and some uprooted. Wind speeds were between 80 and 85 mph and the width decreased to less than 100 yards. The tornado crossed Kentucky Route 362 (Ash Ave) along the southern portion of Persimmon Ridge Golf Club. The main damage was shingle loss to homes, and sporadic tree damage.

The last damage point was along Persimmon Ridge Road, paralleling Aiken Road.
Episode narrative: A closed low pressure system moved slowly across the northern Plains and spawned multiple tornadoes across north central Nebraska.

Tornado event in WHEELER County, NEBRASKA
Start: 12-MAY-23 14:55:00
End: 12-MAY-23 15:00:00
Direct deaths: 0
Event narrative: This tornado touched down in far northern Wheeler County, quickly strengthening and caused extensive damage to shelter belts.  Debarking was observed in trees along the county line.  This tornado continued northwestward into Holt County, damaging additional trees, farm outbuildings, and pivot systems.