torre126/tornado-structure-data huggingface dataset:
Episode narrative: Numerous showers and thunderstorms were observed in northeast Kentucky on the afternoon of August 7th. This came as the result of an encroaching cold front and preceding unstable conditions. Dew points rose into the low to upper 60s that afternoon, allowing for developing storms to thrive as they crossed through Kentucky. 

While most of the storms imposed damaging wind gusts and resulting downed trees, one storm in particular spawned an EF1 tornado. NWS Charleston investigated the resulting damaging the next day and determined that the tornado initially touched down east of Yatesville Lake and continued onward to the Kentucky and West Virginia line. On the Kentucky side, this tornado caused roughly a 400 yard wide swath of extensive tree damage in the Louisa area, along with two overturned semi trailers.

Tornado event in LAWRENCE County, KENTUCKY
Start: 07-AUG-23 14:00:00
End: 07-AUG-23 14:07:00
Direct deaths: 0
Property damage: 20.00K
Event narrative: An EF1 tornado touched down just east of Yatesville Lake, uprooting or snapping several large trees on Aspen Drive and on Birch Road. Three houses were damaged by fallen trees on Birch Road with one home suffering extensive damage to the attached garage as a large tree fell on it. The tornado then tracked eastward, skipping along an almost six and a half mile track, crossing US 23 and the Big Sandy River just north of Louisa before continuing into West Virginia. A roughly 400 yard wide swath of rather extensive tree damage occurred on the west side of the Big Sandy River near a logging yard and two semi trailers were overturned at that location.
Episode narrative: A multi-day severe weather event produced all modes of severe weather across Central Alabama. An upper low parked over the Midwest States and an upper ridge over the Florida Peninsula produced a deep layer of moisture and shear over Alabama. A slow moving surface cold front provided the focus for severe storms late Saturday night and continuing through Monday morning.

Tornado event in MACON County, ALABAMA
Start: 27-MAR-23 01:41:00
End: 27-MAR-23 02:06:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: National Weather Service meteorologists surveyed damage in northwest Macon County and determined that it was consistent with an EF2 tornado, with maximum winds near 125 mph. The tornado touched down in the area of Tysonville Road, with only sporadic tree limbs and small trees uprooted. Damage became more concentrated along County Road 138, where the attached carport of a house was ripped away and destroyed. Numerous trees, mostly pine, were uprooted along a path of several hundred yards. On County Road 40, the damage became more intense, with dozens of trees uprooted. The top of a grain silo was blown off, with roofing material scattered southward, before the tornado reached the cotton gin in Milstead. Here, the main structure sustained significant damage, with failure of the roofing system and outer walls of the structure, earning the EF2 rating. Most of the inner walls remained standing, and two large buildings adjacent to the main structure only sustained comparatively minor roof and siding damage. Just east of the structures, significant tree damage was observed around a small lake. Along the road and railroad immediately south of the cotton gin, numerous concrete power poles were pulled down in a northward direction across the railroad tracks, and a pivot irrigation system was flipped in a large field. The tornado continued eastward, where the Auburn University E.V. Smith Research Center sustained damage to several buildings on the property, with one farm shed partially collapsing and roofing material blown northward across the road. Widespread tree damage continued along County Road 9 for around three miles, although most of the trees that were uprooted were pine trees. There was also occasional minor damage to roofing on homes, mostly caused by trees. Damage became much more sporadic as the tornado passed through the Franklin community, with only a few trees uprooted. There was a slight uptick of more concentrated tree damage on the east side of County Road 27 before the tornado dissipated.
Episode narrative: Several consecutive days of significant severe weather impacted eastern New Mexico from May 24-26, 2023. Showers and thunderstorms developed along the dryline and east slopes of the Sangre de Cristo Mountains on May 23rd. Storms tracked east and southeast across the eastern plains of New Mexico. Extensive severe weather was reported when these storms encountered greater moisture and lift closer to the Texas border. Hail up to 3.5 inches in diameter, thunderstorm wind gusts of 80 to 90 mph, and three tornados were reported in an area stretching from Union County to Roosevelt County. The largest hail stones and strongest wind gusts focused throughout Curry County during the evening hours. Hail and wind damage was reported in Tucumcari, Grady, and Clovis. Three separate tornadoes were reported in northern Curry County. Thunderstorms also dropped very heavy rainfall of 2 to 4 inches of rain across portions of Quay, De Baca, Curry, and Roosevelt Counties. Urban flooding occurred in Clovis, NM, causing some roads to be closed, and some cars to be stranded. Severe weather continued through the night and into May 25th with numerous reports of large hail, strong winds, and flash flooding. Quay County was particularly hard hit with baseball size hail and torrential rainfall amounts in excess of 5 inches. Significant hail damage was reported across Tucumcari with widespread flooding across the county. Severe wind gusts of 70 to 80 mph were common with these storms with damage reported. Strong to severe storms continued well into the night once again on the 25th with more heavy rainfall around the Caprock. The focus for severe weather shifted farther west on May 26th with large hail and heavy rainfall reported around Torrance County. A tornado and baseball size hail was also reported with a supercell near Encino. This activity spread eastward through the day with large hail, damaging wind gusts, and more torrential rainfall around the Caprock well into the night of May 26th. Three-day rainfall amounts exceeded 6 inches in many parts of Curry and Quay counties.

Tornado event in CURRY County, NEW MEXICO
Start: 24-MAY-23 17:49:00
End: 24-MAY-23 17:54:00
Direct deaths: 0
Event narrative: A storm chaser reported a brief tornado near the Quay and Curry County line. No damage was reported.
Episode narrative: A small thunderstorm with weak rotation produced a land spout that was visible from the air. This was reported from a pilot near Burns, OR.

Tornado event in HARNEY County, OREGON
Start: 27-JUN-23 12:00:00
End: 27-JUN-23 12:05:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A pilot report remarked that a small tornado to the surface was visible near Riley, OR. Haze made it hard to retain any other details. This was likely a brief landspout.
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 BUCHANAN County, IOWA
Start: 31-MAR-23 15:51:00
End: 31-MAR-23 15:54:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: The tornado developed in Benton County and crossed into Buchanan County along Benton-Buchanan Road at the Bearbower Sand Prairie County Park. The final tornado path was confirmed during a review of Sentinel satellite data. There was no observable damage in Buchanan County to assign a rating. The tornado was rated EF-2 in Benton County and EF-U in Buchanan County.
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 19:05:00
End: 19-APR-23 19:10:00
Direct deaths: 0
Property damage: 1.00K
Event narrative: The Washington-Slaugherville Tornado moved into Cleveland County from McClain County moving northeast, then turned east-southeast dissipating just west of 60th Street and Slaugherville Road. The damage in Cleveland County was primarily to tree branches.
Episode narrative: On the evening hours of August 11th into early morning August 12th, storms brought hail, damaging winds, flash flooding, and even a brief tornado to northern Missouri.

Tornado event in LINN County, MISSOURI
Start: 11-AUG-23 22:18:00
End: 11-AUG-23 22:21:00
Direct deaths: 0
Event narrative: A brief EF-0 tornado began just south of Highway O in far northern Linn County just south of the Linn and Sullivan County line. The tornado initially damaged some trees and small outbuildings before moving to the east and damaging the roof, siding, and garage doors of a newly built barndominium type building on the north side of Highway O just west of the Highway O and Highway V intersection. The tornado traveled just over a mile and was on the ground for about 3 minutes. Thanks to the Linn County EM for their assistance on the survey.
Episode narrative: On the afternoon of August 12th, strong to severe thunderstorms were strongly possible as a result of an encroaching cold front and hot and muggy conditions festering over southeast Ohio. While most of the severe storms occurred east of the Ohio River, there was one storm that produced an EF1 tornado in Athens County during the peak of the afternoon. An NWS Storm Survey team assessed the damage and determined that the tornado tracked just over two miles through the county before lifting back into the mesocyclone. Noted damage included snapped and uprooted trees and power poles along the path.

Tornado event in ATHENS County, OHIO
Start: 12-AUG-23 18:33:00
End: 12-AUG-23 18:43:00
Direct deaths: 0
Property damage: 10.00K
Event narrative: An EF1 tornado with maximum winds up to 100 mph touched down near Angel Ridge Road in Athens County. The tornado tracked east-northeast crossing Gura Road, Long Run Road, and North Coolville Ridge Road before lifting just past Kincade Road. Damage was limited to snapped and uprooted trees and some snapped power poles along the path, with the worst damage occurring in a 300 yard wide swath along Long Run Road. This is the seventh documented tornado in Athens County and the first since 2018.
Episode narrative: A cold front brought the threat of severe thunderstorms to northeast South Dakota on the afternoon and evening of August 10th. Initially, individual storms presented both a hail and wind threat in the James Valley, with reports of golfball sized hail in Brown and Hand counties. As the storms moved east into the Prairie Coteau region, they organized into a broken line and presented more of a wind threat. The Department of Transportation mesonet station 6 miles west of Henry recorded a 74 mph wind gust, and the nearby town of Henry also experienced damage to trees. There was also a pair of brief tornado touchdowns farther to the south associated with one of the stronger cells embedded within this line, though no damage was ever noted.

Tornado event in CLARK County, SOUTH DAKOTA
Start: 10-AUG-23 18:47:00
End: 10-AUG-23 18:49:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: Law enforcement and a storm chaser reported the brief touchdown of a tornado in an open field. The tornado path was later visible on hi-resolution satellite imagery.
Episode narrative: A closed 500 mb low over the Pacific Northwest opened up and shifted toward the Northern Rockies during this period. This wave, in combination with daytime heating, resulted in showers and thunderstorms across the region August 6th. Shear was meager, but was maximized locally to produce one tornado in Jefferson County. Additionally, a landspout was observed in southern Beaverhead County near the Idaho border.

Tornado event in JEFFERSON County, MONTANA
Start: 06-AUG-23 14:11:00
End: 06-AUG-23 14:17:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: Emergency manager relayed photos, and several photos were received via social media, of a well documented tornado in the Whitetail Basin. No structural damage occurred and most areas were inaccessible to the NWS storm survey team.

Tornado event in BEAVERHEAD County, MONTANA
Start: 06-AUG-23 13:12:00
End: 06-AUG-23 13:19:00
Direct deaths: 0
Event narrative: Public submitted video of a landspout located northwest of Lime Reservoir, associated with a rain shower in the vicinity.
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 WASHINGTON County, IOWA
Start: 31-MAR-23 15:19:00
End: 31-MAR-23 15:33:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: Another large, violent tornado developed in eastern Keokuk County as the initial tornado was weakening southwest of Keota. The tornado tracked to the northeast, on the western fringe of Keota, and crossed into Washington County near the intersection of Keokuk-Washington Road and 180th St. The tornado then continued through northwest Washington county, extreme southeast Iowa County, and into far southwest Johnson County. The tornado severely damaged several homes near Keota, wiping one house completely off its foundation, resulting in EF-4 level damage. A car was lofted in the air and tossed about 1000 feet into a nearby field and trees were completely debarked with only stubs of the largest branches remaining. As the tornado tracked west of Wellman, Iowa it knocked over a 325 ft cell phone tower. The tornado moved  into extreme southeast Iowa County near the intersection of Iowa-Washington Road and Ginkgo Ave., and then into far southwest Johnson County, about a third of a mile north of the intersection of Iowa-Washington Road and Johnson Iowa Road SW. The tornado was rated EF-4 in Keokuk County, EF-3 in Washington County, and EF-1 in Iowa and Johnson Counties.

Tornado event in STEPHENSON County, ILLINOIS
Start: 31-MAR-23 18:01:00
End: 31-MAR-23 18:02:00
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 dissipated near the intersection of Florence Road and Illinois Route 26. 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 cold front moved into northwest Ohio the evening of Thursday, June 15. A weak surface low pressure developed along this front over southern Michigan earlier in the day and moved southeast across the western tip of Lake Erie during the evening. A warm front extended southeast of this low pressure along the western Lake Erie shoreline and then down towards central Ohio. Thunderstorms erupted along the cold front near Toledo just before 6:00 PM and moved southeast towards east-central Ohio over the coming hours. Enhanced vertical wind shear associated with the low pressure and warm front allowed storms to rotate amidst an unstable environment. A particularly intense supercell (rotating thunderstorm) developed near the Ohio/Michigan border just north of Toledo and tracked across parts of Lucas, Ottawa, Sandusky, Erie, Huron, Seneca, Richland, Ashland, and Wayne Counties. This supercell was responsible for nine tornadoes and numerous instances of large hail, with hail to at least the size of tennis balls reported near Toledo and multiple reports of hail to golf ball sized or larger as the storm continued southeast. Heavy rainfall from this supercell also produced flash flooding across Huron County. Storms gradually congealed into a line that produced some hail and straight-line convective wind damage into east central Ohio.

Tornado event in ASHLAND County, OHIO
Start: 15-JUN-23 19:46:00
End: 15-JUN-23 19:48:00
Direct deaths: 0
Property damage: 70.00K
Event narrative: This tornado was an EF0 with estimated peak winds of 85 mph. The tornado began northeast of Nankin, between County Road 801 and OH-58, where several trees were uprooted with snapped branches. As the tornado moved southeastward toward Township Road 713, one residence sustained damage to its roof and chicken coop, while the barn sustained partial roof removal. A separate residence near Township Road 713 and OH-302 suffered damage in the form of a garage door and walls pushed out, and insulation lofted into a nearby field before the tornado dissipated.
Episode narrative: Landspout.  Trained weather spotter looking west from Walworth at the intersection of US Highway 14 and WI-67 reported a brief landspout with dust visible at the surface under a funnel.  No damage reported.  Report relayed via NWS Chicago.  Time and location estimated via radar.

Tornado event in WALWORTH County, WISCONSIN
Start: 01-JUN-23 16:24:00
End: 01-JUN-23 16:25:00
Direct deaths: 0
Event narrative: LANDSPOUT. Location: 42.5517N, -88.6857W beginning point. 42.5517N, -886855W end point. Trained weather spotter looking west from Walworth at the intersection of US Highway 14 and WI-67 reported a brief landspout with dust visible at the surface under a funnel.  No damage reported.  Report relayed via NWS Chicago.  Time and location estimated via radar.
Episode narrative: Brief tornado filmed via drone from a storm chaser in Rock county.  A few trees were hit and slightly damaged.

Tornado event in ROCK County, WISCONSIN
Start: 13-JUL-23 17:13:00
End: 13-JUL-23 17:14:00
Direct deaths: 0
Event narrative: Minimal damage from a tornado that mainly stayed over farmland, but did hit a couple trees.  Tornado was filmed by a storm chaser via a drone.
Episode narrative: Multiple periods of thunderstorms came through southern Wisconsin due to the passage of low pressure.  Mainly widespread wind damage was noted from the multiple rounds of storms, but some significant hail was observed and one tornado.

Tornado event in WAUKESHA County, WISCONSIN
Start: 28-JUL-23 21:30:00
End: 28-JUL-23 21:31:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: NWS damage survey found tree damage in a convergent path east of Palmyra.
Episode narrative: A line of thunderstorms moved through Middle Tennessee during the early afternoon hours of August 12, 2023. Damaging straight-line winds were the main hazard with this line with numerous reports received of downed trees and powerlines. One weak tornado also occurred in Franklin, causing minor tree damage. This activity was produced a lot of lightning with notably caused a large apartment fire in Mount Juliet.

Tornado event in WILLIAMSON County, TENNESSEE
Start: 12-AUG-23 10:47:00
End: 12-AUG-23 10:50:00
Direct deaths: 0
Property damage: 100.00K
Event narrative: A brief, weak EF0 tornado touched down 1.2 miles northeast of downtown Franklin and moved southeast before lifting near Highway 96 at Royal Oaks Boulevard. The main damage was numerous trees being blown down along the intermittent damage path with some falling onto homes. A few homes suffered minor roof and exterior damage near the beginning of the path between Sycamore Drive and Chestnut Lane, and some businesses had minor roof and exterior damage along Highway 96. Maximum winds with this tornado were estimated 75 mph. Damages are a rough estimate.
Episode narrative: A complex weather system pushed a strong cold front into North Georgia during the afternoon of March 3rd. This front produced scattered severe thunderstorms with damaging wind gusts, hail, and an isolated tornado in Gordon county.

Tornado event in GORDON County, GEORGIA
Start: 03-MAR-23 15:08:00
End: 03-MAR-23 15:12:00
Direct deaths: 0
Event narrative: The EF-1 tornado first touched down along Hammond Road where several trees were snapped or uprooted.  The tornado continued ENE causing damage to several homes along Langston Road SE including siding and roof damage as well as destroying an outbuilding.  The tornado continued ENE to the north of Hammond Road snapping and uprooting trees crossing Cash Road and through a largely wooded area until it reached McEntyre Loop.  Several trees and powerlines were snapped and a barn was nearly destroyed.  The tornado continued ENE crossing Creek Ridge Dr uprooting a few trees in the area.  As the tornado crossed Mt. Olive Road several trees were uprooted on a hillside to the east of the road.  These were the last damage indicators found thus the tornado is presumed lifted shortly thereafter and in the area of Young-Wright Lake.
Episode narrative: Thunderstorms developed along a warm front as a low pressure system moved through the Ohio Valley.

Tornado event in FRANKLIN County, INDIANA
Start: 14-AUG-23 17:32:00
End: 14-AUG-23 17:39:00
Direct deaths: 0
Property damage: 70.00K
Event narrative: The tornado first touched down in the vicinity of Palawana Circle and Deer Ridge Road where some minor garden and tree branch damage was noted. From there, the tornado continued east, causing some minor roof and siding damage to several homes between Garr Hill and Deer Ridge Roads. Additionally, numerous trees were damaged and/or uprooted. At one residence, a back yard barn was completely destroyed and a house garage had partial wall and roof collapse. The tornado then continued east, causing minor tree damage along Pea Ridge Road. After crossing State Route 101, more significant tree damage occurred in a forested area just to the south of Pea Ridge Road. The tornado then crossed several fields before lifting along Liberty Pike, where minor tree damage was noted.