torre126/tornado-structure-data huggingface dataset:
Episode narrative: Another unseasonably strong upper trough approached the region during the day on the 17th. Widespread thunderstorm development occurred across the High Plains, from southwest Kansas into the central Texas Panhandle by the late afternoon. The combination of anomalously (for mid-June) high magnitudes of wind shear and instability produced widespread severe weather outcomes across southern, central and northern Oklahoma. By the late evening hours, convection had organized into a mature bow echo across north-central Oklahoma, where numerous significant wind gusts (and damage) were observed. Similar outcomes occurred into portions of northeastern Oklahoma towards early morning hours of the 18th.

Tornado event in HARPER County, OKLAHOMA
Start: 17-JUN-23 18:43:00
End: 17-JUN-23 18:50:00
Direct deaths: 0
Property damage: 40.00K
Event narrative: This tornado moved into Harper County from Beaver County OK (see report from the Oklahoma panhandle from NWS Amarillo). At the Beaver County-Harper County line, the tornado caused roof damage to a home as well as tree damage. It continued to damage trees and power poles as the tornado moved to just northeast of Laverne. A barn was damaged along US-283 just north of Laverne before the tornado dissipated. In addition to the tornado, a large area of wind damage was observed south of the tornado creating areas of wind damage in the town of Laverne.
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 SANDUSKY County, OHIO
Start: 15-JUN-23 18:40:00
End: 15-JUN-23 18:42:00
Direct deaths: 0
Property damage: 10.00K
Event narrative: The tornado began on Parkview Place in Bellevue, where it knocked down several power poles. As the tornado tracked south-southeastward, it snapped several large branches off the tops of trees in Robert Peters Park and then damaged more trees along Kilbourne Street before the tornado dissipated. This tornado was an EF0 with estimated peak winds of 80 mph.
Episode narrative: A very strong system developed on the morning of March 31st and tracked across the state of Iowa. This system pulled unseasonably warm and moist air into the Midwest, which combined with a very favorable wind profile to create a volatile environment for severe thunderstorms.  Discrete supercell thunderstorms occurred initially, but quickly transitioned into a QLCS mode. This system produced a historic tornado outbreak for the area, with a record 29 tornadoes on the day, including 13 rated EF-2, 1 rated EF-3, and 1 rated EF-4. This was the first EF-4 tornado in the NWS Quad Cities service area since 1995. 11 injuries were reported, with no known fatalities. In addition to the numerous tornadoes, there were many large hail and damaging wind reports. Maximum straight line thunderstorm winds were estimated at 80 to 90 mph.

Tornado event in BENTON County, IOWA
Start: 31-MAR-23 15:36:00
End: 31-MAR-23 15:39:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: The tornado developed northwest of Vinton, Iowa and moved northeast, producing damage to farm buildings, trees, and power poles.

Tornado event in BUCHANAN County, IOWA
Start: 31-MAR-23 16:03:00
End: 31-MAR-23 16:05:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A review of Sentinel Satellite and radar data confirmed a brief tornado path just east of Rowley. There was no observable damage to assign a rating. Beginning and end times estimated based on radar.
Episode narrative: The combination of abundant tropical moisture from a departing tropical wave interacting with an upper-level trough north of the region produced strong afternoon thunderstorms over northwestern Puerto Rico on the 9th of August. A weak EF-0 tornado and strong outflow boundaries caused thunderstorm wind damage across the municipality of Aguadilla.

Tornado event in AGUADILLA County, PUERTO RICO
Start: 09-AUG-23 13:00:00
End: 09-AUG-23 13:05:00
Direct deaths: 0
Property damage: 40.00K
Event narrative: A weak tornado developed near Highway 2 in Aguadilla early  in the afternoon of Wednesday, August 9, 2023. The brief tornado primarily  impacted a structure, tearing off aluminum roofs from a garage and causing  damage to vehicles in the affected area. Additionally, associated  with this severe thunderstorm, strong gusty winds from the outflow  affected the area near Crash Boat Beach, resulting in trees falling onto  parked cars and fallen power lines.
Episode narrative: Strong upper level system led to severe thunderstorm development moving into the western Nebraska Panhandle on the 28th with one particular storm tracking across Kimball County producing an EF0 tornado.

Tornado event in KIMBALL County, NEBRASKA
Start: 28-JUN-23 17:35:00
End: 28-JUN-23 17:45:00
Direct deaths: 0
Event narrative: A supercell first developed over Laramie County in southeast Wyoming dropping golf ball to baseball size hail while exhibiting mid-level rotation. The supercell was long lived and made its way into Kimball County, Nebraska where it began to show tornadic structure. Based off of radar and storm spotter reports, the estimated start point is just southeast of the intersection of County Road 29 and 14 at around 6:35 PM MDT. The tornado tracked south-southeast, remaining mainly over open farmland, kicking up large amounts of dirt and dust. As the tornado tracked south-southeast it eventually crossed County Road 10 between County Road 29 and 33. At this site, there was very little damage aside from an insulator cap blown away and a loose wire on an electrical pole. The tornado continued travailing to the southeast on County Road 35, north of County Road 6, where it caused minor damage to a farmhouse and the surrounding barns on the property. Tree limbs 1 to 3 inches in diameter were broken and scattered across the property. A few shingles were torn off the farmhouse, an augur was pushed approximately 5 feet to the southwest digging a groove in the soil, and a calving hut was blown 20 feet and rotated about 100 degrees. A few hundred yards south down County Road 35 an electrical pole roughly 50 years old was snapped at the base but still upright as it was still attached to the electrical wires. A plastic 5 gallon bucket from the farmhouse was thrown about half a mile away from the home in a field off of County Road 6. Finally, the tornado dissipated over an open field just to the west of Highway 71, about 2 miles southeast of the farmhouse at 6:45 PM MDT. Overall, damage seen was consistent with that of an EF-0 tornado with maximum winds of 80 to 85 MPH.
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 LUCAS County, OHIO
Start: 15-JUN-23 17:28:00
End: 15-JUN-23 17:29:00
Direct deaths: 0
Property damage: 5.00K
Event narrative: A waterspout formed 0.8 miles north of South Shore Park in Oregon, OH. The waterspout moved east-southeastward just north of Maumee Bay Lodge and Conference Center and made landfall as a tornado in the eastern portion of Maumee Bay State Park. Several trees, mostly dead, were downed and damaged the boardwalk before the tornado dissipated. This tornado was an EF0 with estimated peak winds of 80 mph.
Episode narrative: Intense upper level low pressure brings arc of severe thunderstorms to portions of south central Nebraska during the afternoon hours of May 12th. A closed upper low pressure system over SW Nebraska lead to the development of a broken arc of mini-supercells, beginning around 1300-1400CDT. While most of south central Nebraska was in the dry slot of the storm system during the daytime hours, far north and northeastern portions of the CWA remained in the warm sector long enough to develop sufficient instability for strong to severe thunderstorms. The intense nature of the upper low, combined with significantly backed low level winds (and thus high storm relative helicity) lead to development of several low topped supercells that arched from the Nebraska Sandhills, ESE to near Ord and Columbus. A few hail and wind damage reports were received with this activity, but by far the most attention-grabbing portion of the event was a tornado in Greeley County. Damage was very limited with this tornado as it tracked over primarily pasture land in central Greeley County. However, this tornado had high notoriety, regionally and nationally, due to it's highly photogenic nature (well defined tornado in foreground and blue skies in the background), as well as proximity to several well known storm chasers. This was a relatively short-lived event, overall, with all of the severe activity occurring between 1300-1700CDT.

Tornado event in GREELEY County, NEBRASKA
Start: 12-MAY-23 13:25:00
End: 12-MAY-23 13:42:00
Direct deaths: 0
Property damage: 300.00K
Event narrative: This tornado developed out of a northwestward tracking supercell that was located within a band of supercells that were rotating around a strong low pressure system over central Nebraska. The tornado formed right around 2:25 PM CDT and tracked over open pasture and recently planted fields mainly hitting several pivots and tree lines as it tracked northwest. No homes were impacted by this tornado. The worst damage appeared to be the flipped pivots, snapped cedar trees, and finally damage to at least 2 parked vehicles at the intersection of Highway 91 and Highway 281. The windows were blown out on two vehicles that were parked at this location and two large metal electrical transmission poles were leaning, but still standing at this intersection. After hitting the Highway 91 and 281 intersection the tornado continued onto the northwest over open road-less country across far north central Greeley county where based on video and surveying, it was believed to have lifted just shy of the Greeley/Wheeler County line. The maximum wind gust was estimated to be 105 MPH.
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 LUCAS County, OHIO
Start: 15-JUN-23 17:06:00
End: 15-JUN-23 17:11:00
Direct deaths: 0
Property damage: 176.00K
Event narrative: The tornado began 1000 feet east of Telegraph Road along East State Line Road in Toledo. Several tree limbs were downed on power lines with 80 mph winds. The tornado continued to track southeastward, snapping and downing several power poles along North Detroit Avenue with 90 mph winds. The tornado continued southeastward across Interstate 75 and reached its peak intensity as its wind speeds increased to 130 mph. The tornado partially destroyed the second floor of the medical lab building and blew out windows of a gas station and strip mall on Suder Avenue. The tornado continued southeastward across the more densely populated Point Place area, widened up to 300 yards, produced widespread tree damage, uprooted trees, and broke numerous tree limbs that fell onto houses, powerlines, and cars. The tornado continued southeastward across Cullen Park and ended at the Maumee Mooring Basin of the Maumee River.
Episode narrative: A pre-frontal line of thunderstorms tracked eastward across east Alabama during the morning hours on March 12th.  A segment of the line intensified over Tallapoosa and chambers counties, producing a weak tornado and some wind damage.

Tornado event in TALLAPOOSA County, ALABAMA
Start: 12-MAR-23 07:17:00
End: 12-MAR-23 07:18:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: National Weather Service meteorologists surveyed damage in western Tallapoosa County and determined that it was consistent with an EF0 tornado, with maximum winds near 65 mph. A brief tornado began just north of Highway 280 and moved along an east-northeast path across Flint Hill Place. Several smaller trees uprooted around a cemetery near Flint Hill Methodist Church. The tornado continued across County Road 21 and Dadeville Road. Several pine trees were uprooted on the north side of Dadeville Road before the tornado dissipated.
Episode narrative: A weakening upper level low pressure area moved into far southeast South Dakota by early evening. Slow moving thunderstorms developed within a very narrow axis which nosed into Buena Vista County, where the environment featured maximized and collocated 0-3km shear and 0-3km CAPE, and resulted in a few brief tornadoes connected with storm development phase.  In addition, very efficient thermodynamic profiles resulted in extremely heavy rainfall rates, with observed rates up to 2 to 3 inches per hour.

Tornado event in BUENA VISTA County, IOWA
Start: 13-MAY-23 12:21:00
End: 13-MAY-23 12:22:00
Direct deaths: 0
Event narrative: Storm chaser video captured a very brief touchdown in an open field. No damage indicators were impacted. Therefore, an EF rating could not be determined.
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 MCCLAIN County, OKLAHOMA
Start: 19-APR-23 18:55:00
End: 19-APR-23 19:05:00
Direct deaths: 0
Property damage: 25.00K
Event narrative: The Washington-Slaugherville tornado, the sixth of the outbreak, formed on the east edge of Washington and moved east and northeast crossing Interstate 35, and then crossing the Canadian River into Cleveland County due west of Slaugherville. In McClain County, a few homes suffered roof damage, and numerous trees along the path were damaged.
Episode narrative: Several tornadoes occurred across the area in the afternoon.

Tornado event in FORT BEND County, TEXAS
Start: 24-JAN-23 13:38:00
End: 24-JAN-23 13:53:00
Direct deaths: 0
Event narrative: This EF0 tornado touched down near the intersection of FM 1994 and Fair Childs Long Point Road five miles east southeast of Needville. A sporadic path of tree damage was found extending northeast toward Thompsons Oil Field and into Sienna. Most of the damage found consisted of broken tree limbs, small trees uprooted, minor roof and siding damage, and downed fences.

Tornado event in BRAZORIA County, TEXAS
Start: 24-JAN-23 14:07:00
End: 24-JAN-23 14:09:00
Direct deaths: 0
Event narrative: EF0 damage was observed in southwest Pearland. A path of damaged trees and fences was found from just west of the intersection of CR 90 and Bailey Avenue extending northeast to near Magnolia Parkway. The most significant damage noted was along Crescent Drive where nearly ten homes had minor roof and window damage.
Episode narrative: A short-lived thunderstorm developed southeast of Rock River in the Laramie Valley in the evening on the 13th that briefly produced a tornado over open land with no known damage.

Tornado event in ALBANY County, WYOMING
Start: 13-JUN-23 17:44:00
End: 13-JUN-23 17:50:00
Direct deaths: 0
Event narrative: Received reports of 2 to 3 brief touchdowns southeast of Rock River.
Episode narrative: One tornado was documented that moved north out of Chase county into far southeast Morris County around 905 pm CDT.   The tornado did damage to trees and one home before ending around 3 miles south southwest of Dunlap, Kansas.  Other storms produced large hail and damaging winds.  A second line of severe storms developed after midnight during the early morning hours of April 20th and produced wind damage most concentrated in Clay County in the city of Clay Center.

Tornado event in MORRIS County, KANSAS
Start: 19-APR-23 20:04:00
End: 19-APR-23 20:08:00
Direct deaths: 0
Event narrative: Results of an NWS damage survey revealed tree damage and damage to a home approximately 3 miles SSW of Dunlap, Kansas. The home had portions of the roof removed and windows broken. This appeared to be the end of the tornado track that moved north out of Chase County.  The tornado appears to have crossed from Chase into Morris County around 905pm and ended around 908 pm CDT based on radar data.  Based on DOD to DI winds estimated to be around 95 mph.
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 OTTAWA County, OHIO
Start: 15-JUN-23 17:49:00
End: 15-JUN-23 17:58:00
Direct deaths: 0
Property damage: 255.00K
Event narrative: A tornado began about three miles south of Oak Harbor and tracked east-northeastward before ending about three miles east-southeast of Oak Harbor. Five homes were damaged along the tornado's path and several of these homes lost their roofs. The tornado also destroyed seven barns and ten cattle fatalities were reported. This tornado received a peak rating of EF2 with estimated peak winds of 130 mph.
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 CLINTON County, IOWA
Start: 31-MAR-23 16:37:00
End: 31-MAR-23 16:40:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A tornado touched down 3 miles north of Atalissa, Iowa in Cedar County, snapping power poles and large trees along its path. It caused significant damage to two homes southwest of Bennett, Iowa, and flipped over a semi along interstate 80. It also damaged several concrete block silos south of Bennett. The tornado continued to track to the northeast through a rural area, causing sporadic tree damage.  The tornado entered extreme northwest Scott County about a third of a mile south of 220th St., then travelled around one mile before entering Clinton County about a half mile west of the intersection of 280th St. and 110th Ave. The tornado then dissipated about 2 miles south of Wheatland. The peak winds were estimated at 120 mph. The tornado was rated EF-2 in Cedar County, and EF-0 in Scott and Clinton Counties.