torre126/tornado-structure-data huggingface dataset:
Episode narrative: A powerful storm system, with highly anomalous magnitudes of wind shear and moisture for late February, impacted the forecast area on the evening of the 26th. A broken line of severe thunderstorms developed across the eastern Texas Panhandle/far western Oklahoma and quickly swept through much of the forecast area. Widespread wind damage, including gusts near 90 mph, along with a record number of tornadoes (13) for February occurred. Several reports of large hail were also received. Behind the line of thunderstorms, a tight pressure gradient and strong westerly low-level jet allowed widespread 50-60 mph winds gusts to continue through the late evening hours.

Tornado event in CLEVELAND County, OKLAHOMA
Start: 26-FEB-23 21:42:00
End: 26-FEB-23 21:42:00
Direct deaths: 0
Property damage: 30.00K
Event narrative: A tornado developed just inside Cleveland County southwest of the intersection of Southeast 89th Street and Pottawatomie Road. A house and outbuilding suffered roof damage. The tornado moved east one-quarter of a mile before crossing Pottawatomie Road and moving into Pottawatomie County.
Episode narrative: Convection percolated along a warm front across the area through the morning. By afternoon, storms re-strengthened as as daytime heating helped enhance instability. Despite good instability with MLCAPE over nearing 2000 J/kg, lapse rates were modest and speed shear was weak. Despite this, directional shear was good and when combined with instability for brief stretching, allowed for a number of weak and short-lived tornadoes to develop. While 13 tornadoes occurred, they were confined to two small areas in Iowa where storms trained, resulting in several storms over the same locations. In addition, the training storms made for pockets of heavy rain with three to four inches or more of rain. This did result in flash flooding in Pocahontas County with impacts to homes and businesses.

Tornado event in MARION County, IOWA
Start: 13-MAY-23 14:29:00
End: 13-MAY-23 14:31:00
Direct deaths: 0
Property damage: 10.00K
Event narrative: Another brief tornado which produced minor damage to an outbuilding and a hoop building.  The tornado was captured on video by a storm chaser.

Tornado event in MARION County, IOWA
Start: 13-MAY-23 14:52:00
End: 13-MAY-23 14:54:00
Direct deaths: 0
Property damage: 1.00K
Event narrative: Tornado was captured on video by storm chasers. Some minor EF0 tree damage occurred with this tornado prior to lifting northwest of Harvey.

Tornado event in POCAHONTAS County, IOWA
Start: 13-MAY-23 15:15:00
End: 13-MAY-23 15:19:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: Intermittent tornado with well developed funnel on video from storm chaser. No damage indicators were impacted, hence the EFU rating.
Episode narrative: A powerful storm system, with highly anomalous magnitudes of wind shear and moisture for late February, impacted the forecast area on the evening of the 26th. A broken line of severe thunderstorms developed across the eastern Texas Panhandle/far western Oklahoma and quickly swept through much of the forecast area. Widespread wind damage, including gusts near 90 mph, along with a record number of tornadoes (13) for February occurred. Several reports of large hail were also received. Behind the line of thunderstorms, a tight pressure gradient and strong westerly low-level jet allowed widespread 50-60 mph winds gusts to continue through the late evening hours.

Tornado event in POTTAWATOMIE County, OKLAHOMA
Start: 26-FEB-23 21:42:00
End: 26-FEB-23 21:48:00
Direct deaths: 0
Property damage: 75.00K
Event narrative: This tornado moved out of Cleveland County crossing Pottawatomie Road just southeast of 89th Street/Memorial Road. The tornado moved east-northeast producing tree damage, roof damage to a home and flipping an RV as it approached Interstate 40. The tornado continued to produce tree and power pole damage moving east and northeast before dissipating after crossing State Highway 270 just north of Garretts Lake Road.

Tornado event in POTTAWATOMIE County, OKLAHOMA
Start: 26-FEB-23 21:45:00
End: 26-FEB-23 21:51:00
Direct deaths: 0
Property damage: 250.00K
Event narrative: This tornado developed just north of the Shawnee Mall on the north side of Shawnee and raced to the north-northeast creating tree damage and damage to a pivot irrigator. Several power poles were damaged along Wolverine Road near Harrison Avenue before the tornado turned northeast moving through a neighborhood near Moccassin Trail Road and Bryan Road. Several homes in this neighborhood had significant roof damage with at least one home losing its entire roof. The tornado continues producing tree, power pole, fence and outbuilding damage before crossing into Lincoln County near Brangus Road.
Episode narrative: A warm front lifted north of the area and warm, moist, and unstable air flowed into the Mid-South during the morning hours of February 16, 2023.  A strong upper-level jet streak across the Great Lakes produced ascent across the Mid-South resulting in showers and thunderstorms with heavy rainfall and flash flooding across West Tennessee. Later in the day as the cold front approached, thunderstorms intensified and produced a few tornadoes across northeast Mississippi.

Tornado event in TIPPAH County, MISSISSIPPI
Start: 16-FEB-23 13:33:00
End: 16-FEB-23 13:49:00
Direct deaths: 0
Property damage: 500.00K
Event narrative: The first damage was observed to an area of trees east of Gravestown and just south of Highway 4 West. The tornado quickly intensified and increased in size as it moved east-northeast, approaching the highway. Two high-tension electrical transmission towers were buckled by the tornado with a third suffering lesser damage. At least 6 wood utility poles were downed along Highway 4 West with significant damage occurring to a grove of hardwood trees. The tornado caused damage to several homes in the Stubbs Hill area west of Ripley. Numerous trees were damaged and roof damage was observed to most of these homes. One home did suffer more significant structural damage when the garage door failed and the resulting wind load caused the ceiling to collapse. Further tree damage was observed as the tornado moved northeast near the intersection of County Road 422 and County Road 427 with minor damage to a couple of mobile homes. Damage was more intermittent as the storm moved across northwest Ripley, but became more widespread as the tornado crossed Highway 15, damaging a gas station and a small retail store. Additional tree damage and sporadic damage to homes were observed northeast of Ripley as the tornado moved across Pocahontas Road and County Road 549, where one injury was reported. Farther northeast along County Road 500, a few utility poles were downed. The last damage to trees was found along County Road 500 near the intersection with County Road 200. This tornado had a path length of 11.1 miles with a maximum path width of 500 yards. Maximum estimated winds were around 125 mph.
Episode narrative: A highly impactful weather system moved across the High Plains. As a result, multiple storms produced tornadoes, including one in particular that struck Weskan, Kansas.

Tornado event in DUNDY County, NEBRASKA
Start: 11-MAY-23 13:01:00
End: 11-MAY-23 13:06:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: Tornado remained over open fields. Reported by spotter. Distance estimated by radar.
Episode narrative: Widespread thunderstorms developed during the afternoon of Sunday April 2 in the vicinity of a dryline and a warm front, both of which were draped across the area. Many of these storms became severe, and a few storms in Central Texas produced large hail up to 3 inches. Another storm moving through Falls and Limestone County produced 4 brief tornadoes. Additional storms developed the afternoon of Monday April 3 along the dryline, which had surged east to near the I-35 corridor. Fewer storms occurred on Monday, but some still became severe.

Tornado event in LIMESTONE County, TEXAS
Start: 02-APR-23 16:43:00
End: 02-APR-23 16:45:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A brief tornado was reported crossing FM 1246 between Thornton and Oletha. The exact location is unknown but is close to the plotted track. This tornado was the third of 4 brief tornadoes a parent supercell produced as it moved across Falls and Limestone counties.

Tornado event in LIMESTONE County, TEXAS
Start: 02-APR-23 17:00:00
End: 02-APR-23 17:02:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A brief tornado was verified through storm spotters and via public video. Some tree limbs were broken. The exact location is unknown but is close to the plotted track. This tornado was the fourth of 4 brief tornadoes a parent supercell produced as it moved across Falls and Limestone counties.
Episode narrative: An increase in monsoon moisture brought strong thunderstorms over northern Arizona.  One thunderstorm produced a landspout tornado.

Tornado event in YAVAPAI County, ARIZONA
Start: 09-SEP-23 14:30:00
End: 09-SEP-23 14:32:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A landspout was reported near Chino Valley and was on the ground for one to two            minutes.
Episode narrative: A modestly unstable environment led to the development of thunderstorms across western Montana. Conditions were favorable for the formation of cold air funnels and landspouts.

Tornado event in LAKE County, MONTANA
Start: 09-MAY-23 16:30:00
End: 09-MAY-23 17:00:00
Direct deaths: 0
Property damage: 2.00K
Event narrative: A thunderstorm moved through the Mission Valley, near St. Ignatius and produced a tornado as confirmed by multiple public reports and social media pictures. It briefly touched down and caused some minor property damage. Metal roofing was torn off a farm outbuilding, and minor shingle damage occurred at a house.
Episode narrative: A powerful storm system, with highly anomalous magnitudes of wind shear and moisture for late February, impacted the forecast area on the evening of the 26th. A broken line of severe thunderstorms developed across the eastern Texas Panhandle/far western Oklahoma and quickly swept through much of the forecast area. Widespread wind damage, including gusts near 90 mph, along with a record number of tornadoes (13) for February occurred. Several reports of large hail were also received. Behind the line of thunderstorms, a tight pressure gradient and strong westerly low-level jet allowed widespread 50-60 mph winds gusts to continue through the late evening hours.

Tornado event in GRADY County, OKLAHOMA
Start: 26-FEB-23 20:57:00
End: 26-FEB-23 21:00:00
Direct deaths: 0
Property damage: 5.00K
Event narrative: A tornado touched down south of County Road 1190 to the west of Tuttle, and moved northeast crossing the Canadian River into Canadian County. In Grady County, the tornado damaged trees and street signs.
Episode narrative: A rapidly-developing mini-supercell formed ahead of an approaching squall line near the Lower Texas coast just before 4 AM Saturday, May 13. The supercell spawned a quick spin-up tornado that struck the town of Laguna Heights, Texas, over a two-minute period before the circulation moved over Laguna Madre Bay and rapidly dissipated. The tornado tracked to the east northeast after the circulation was impacted by the approaching squall line, creating a boomerang effect since the original motion of the radar couplet was to the north-northwest prior to touchdown. Winds may have reached 110 mph, the top of the EF1 scale, in a few locations ï¿½ï¿½ï¿½ but the very poor quality of construction suggests 105 mph is a better estimate.

Tornado event in CAMERON County, TEXAS
Start: 13-MAY-23 03:06:00
End: 13-MAY-23 03:08:00
Direct deaths: 1
Property damage: 500.00K
Event narrative: A rapidly-developing mini-supercell formed ahead of an approaching squall line near the Lower Texas coast just before 4 AM Saturday, May 13. The supercell spawned a quick spin-up tornado that struck the town of Laguna Heights, Texas, over a two-minute period before the circulation moved over Laguna Madre Bay and rapidly dissipated. The tornado tracked to the east-northeast after the circulation was impacted by the approaching squall line, creating a boomerang effect since the original motion of the radar couplet was to the north-northwest prior to touchdown. Winds may have reached 110 mph, the top of the EF1 scale, in a few locations ï¿½ï¿½ï¿½ but the very poor quality of construction suggests 105 mph is a better estimate.

The strongest portion of the tornado, rated EF1, flattened at least six poorly built mobile home structures, removed part of the second story of a local business, and removed the majority of roof decking on at least ten other residences and buildings. At least a half dozen ash and mesquite trees were snapped or uprooted and two wooden power poles were bent. Casualties were found in several of the demolished mobile homes. A man in his forties was killed when the home collapsed on him. Five others were injured in the same cluster of damaged homes, and two more were injured in a flattened mobile home near the shoreline of Laguna Madre Bay. Two of the injuries, in the home along the bayfront, required extended hospitalizations. Thirty-eight additional residents were displaced by the tornado and were housed at the local events center with American Red Cross assistance. In all, there was the one fatality and eleven injuries, of which two were critical head injuries. Surrounding the EF1 area, portions of roofs and shingles were removed from residences, large limbs were broken, and fences were knocked down.
Episode narrative: Thunderstorms initially developed along the Laramie Range in the late morning and early afternoon hours on 5/27, quickly becoming more widespread and more intense while tracking slowly eastward across the high plains of southeast Wyoming. These storms were associated with numerous reports of hail and torrential rainfall, as well as a few tornadoes. Most notably, a supercell tornado developed in the vicinity of Laramie Peak, near Esterbrook Campground along the Converse and Platte County line. No damage was reported.

Tornado event in ALBANY County, WYOMING
Start: 27-MAY-23 13:17:00
End: 27-MAY-23 13:25:00
Direct deaths: 0
Event narrative: Several reports and angles shared of a tornado west of Esterbrook, WY in the mountains and open space near Laramie Peak. These accounts were shared from Douglas, Irvine, Wheatland, and Esterbrook areas. Timing is estimated based on radar, time stamp pictures, and reports received. No damage has been reported from Platte or Converse County Emergency Management agencies. This tornado stayed over mountainous and open space for the duration of it`s estimated 7.1 mile track. No injuries or fatalities reported along with no damage.

Tornado event in LARAMIE County, WYOMING
Start: 27-MAY-23 15:02:00
End: 27-MAY-23 15:06:00
Direct deaths: 0
Event narrative: Brief landspout tornado occurred southwest of Cheyenne and just southwest of the Dyno Nobel Plant per pictures and video evidence. Timing based on radar and reports received. No damage occurred or was reported with the landspout tornado remaining in open space just west and south of known infrastructure. No injuries, no fatalities, and no damage.
Episode narrative: Late in the afternoon into the evening of the 27th, a couple of supercells moving east-southeast out of eastern New Mexico produced severe weather in the western South Plains. One of these supercell thunderstorms produced tornadoes in eastern New Mexico before moving into Yoakum County. As the storm tracked across Yoakum County, it produced a brief tornado northwest of Plains and severe hail in the city of Plains. A second supercell thunderstorm tracked across northern Cochran County producing severe hail in Morton.

Tornado event in YOAKUM County, TEXAS
Start: 27-MAY-23 19:26:00
End: 27-MAY-23 19:28:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A supercell thunderstorm that had a history of producing tornadoes in eastern New Mexico developed a brief tornado northwest of Plains. The short lived tornado occurred over open land and inflicted no known damage.
Episode narrative: On the afternoon of May 6 strong thunderstorms formed in far northwest Missouri. Through the afternoon these storms strengthened as they moved east across northern Missouri, ultimately turning into robust supercells that started diving southeast toward Highway 36. Along the way they produced giant hail reaching, and perhaps exceeding 4 inches at times. As the main storm pushed southeast toward Linneus, Missouri it produced a tornado that at times was several hundred yards wide. This tornado produced EF-2 damage just north of Linneus. Perhaps as noteworthy, if not more so, was the extremely strong and wide rear flank downdraft that produced some intense damage well south of the main tornado track. This RFD destroyed numerous homes along the way and produced extreme tree damage to the city of Linneus, which was largely spared a direct hit from the actual tornado. Overall the storm produced three separate tornadoes, the most noteworthy of which was the EF-2 just north of Linneus, Missouri.

Tornado event in GRUNDY County, MISSOURI
Start: 06-MAY-23 18:39:00
End: 06-MAY-23 18:41:00
Direct deaths: 0
Event narrative: A storm chaser in Trenton caught a brief tornado on video. This tornado did some visible damage to a local church, but that damage was mostly superficial as the brick facade crumbled off the face of the building. No injuries were reported.

Tornado event in LINN County, MISSOURI
Start: 06-MAY-23 19:22:00
End: 06-MAY-23 19:46:00
Direct deaths: 0
Event narrative: After creating a brief tornado in the city of Trenton the supercell went on to produce a more massive and long-lived tornado across central Linn County. No incorporated cities were directly impacted by the tornado, but several residences across the county were damaged. The most extensive residential damage occurred just north of Linneus as the storm crossed Highway 5. The tornado eventually dissipated east of Linneus before producing again as it approached Bucklin. One notable aspect of this event was the extreme rear flank downdraft, which produced some of the more extensive damage. This damage was determined to be straight line winds due to being 1-2 miles away from the main tornado circulation.
Episode narrative: A few strong to locally severe thunderstorms occurred across southeast Wyoming during the late morning and early afternoon hours on 5/18. Notable weather events included a landspout tornado northeast of Laramie, and strong thunderstorm wind gusts near the city of Pine Bluffs. No damage was reported.

Tornado event in ALBANY County, WYOMING
Start: 18-MAY-23 10:28:00
End: 18-MAY-23 10:42:00
Direct deaths: 0
Event narrative: In the late morning hours of Thursday, 18 May, 2023, a semi-sustained updraft was able to maximize the local near-surface vorticity of a low-topped thunderstorm in Laramie Valley north of the town of Laramie. As a result, several funnel clouds occurred near 11:20am to 11:25am MDT. Funnel pictures were initially elevated and horizontal in nature. Additional pictures and several videos then showed clear evidence of a more vertical circulation taking place. This vertical circulation was able to connect with the ground per evidence of a large dust circulation from several videos and pictures. Approximate touchdown points have been officially updated in the NWS Damage Assessment Toolkit Viewer based on radar, pictures, videos, and emergency management accounts. No known damage occurred as a result of this tornado as it remained in open space NE of Laramie, WY. NWS meteorologists surveyed the accessible areas NE of Laramie and determined no damage indicators were impacted. Thus, a tornado rating of EF-Unknown (EF-U) has been determined. No injuries or fatalities.
Episode narrative: Thunderstorms developing along converging boundaries late in the afternoon on the 24th resulted in a landspout tornado forming over the Cheyenne Airport. No damages or injuries were reported.

Tornado event in LARAMIE County, WYOMING
Start: 24-MAY-23 16:35:00
End: 24-MAY-23 16:38:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: Brief landspout tornado occurred in the middle of Cheyenne Airport airfield with no known damage and stayed away from airport buildings. Start and end time based on several picture and witness accounts. Since no damage indicators were struck and no damage reported, this landspout tornado was rated EF-U. No injuries, fatalities, or damage occurred as the circulation remained nearly stationary over the middle of the airfield. No injuries, no fatalities, and no damage reported.
Episode narrative: Isolated thunderstorms across far northern central Indiana included one rotating supercell whose persistent nature contributed to a landspout tornado spawning.  The tornado was displaced to the south of the cell's mesocyclone, which is atypical for supercell tornadoes.

Tornado event in CARROLL County, INDIANA
Start: 08-MAY-23 16:54:00
End: 08-MAY-23 17:01:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: Public videos and pictures confirmed a landspout tornado developed west-northwest of Flora and moved to the east-southeast over fields.  One video showed the landspout moving through powerlines.  No damage occurred.
Episode narrative: Scattered supercell thunderstorms developed on the afternoon of the 28th and persisted through the evening producing several severe storms despite weak background forcing. Strong instability developed while the atmosphere became uncapped which allowed these supercell thunderstorms to develop. A slow moving storm near Vigo Park produced a brief tornado over an open field. More widespread thunderstorms evolved late in the evening while tracking from west to east over much of the South Plains and Rolling Plains. In Lubbock, a tree hit by lightning fell on a vehicle. These widespread slow moving storms produced extensive flash flooding especially over Lubbock County. Several roads were closed due to flooding with numerous stranded vehicles. After the cluster of thunderstorms moved east of Lubbock, a heat burst was observed at Reese Center (Lubbock County) within a stratiform region. A peak wind gust of 67 mph was observed with this heat burst as well as a 15 degree temperature increase.

Tornado event in SWISHER County, TEXAS
Start: 28-MAY-23 16:09:00
End: 28-MAY-23 16:10:00
Direct deaths: 0
Event narrative: A video shared on social media showed a brief tornado southwest of Vigo Park in an open field. No damage was known to have occurred.
Episode narrative: A few compact thunderstorms developed along a warm front in eastern South Dakota. These low topped supercells tracked from just south of the Watertown area, towards Milbank and then on into western Minnesota between 430 and 630pm CDT before weakening. Several storm chasers confirmed two tornado touchdowns with the strongest of these storms. These weak tornadoes passed through mostly open fields.

Tornado event in DEUEL County, SOUTH DAKOTA
Start: 06-MAY-23 16:01:00
End: 06-MAY-23 16:02:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A storm spotter posted photos of a rope tornado moving through pasture south of Strandburg.

Tornado event in GRANT County, SOUTH DAKOTA
Start: 06-MAY-23 16:25:00
End: 06-MAY-23 16:30:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A storm chaser posted photos of a rope tornado moving through pasture and an open field. The tornado may have clipped some trees as well before dissipating.
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 HAMILTON County, TENNESSEE
Start: 02-MAR-23 06:55:00
End: 02-MAR-23 06:58:00
Direct deaths: 0
Event narrative: An EF0 tornado briefly touched down in northeastern Hamilton County. This tornado was on the ground for about two miles before it lifted just over the Meigs County line near the Highway 60 and Highway 58 intersection in Georgetown. Mostly tree damage was observed along this path but some minor structural damage was noted.