torre126/tornado-structure-data huggingface dataset:
Episode narrative: The most notable storm of the day was an intense, long-lived, cyclic tornadic supercell which significantly impacted Scotts Bluff and Morrill Counties during the early evening hours. This storm originated in the central Laramie Range of Wyoming approximately 50 miles to the west around 3 to 4 hours prior to reaching western Nebraska, producing several confirmed tornadoes along its path. Environmental conditions across Scotts Bluff County continued to support the potential for tornadoes, with abundant moisture pooling in the Platte River Valley and favorable east-to-southeast winds near the surface with a strong southwesterly jet stream aloft. The supercell produced 7 additional confirmed tornadoes (6 in Scotts Bluff County and 1 in Morrill County), most notably including an EF-2 tornado which tracked approximately 1-3 miles ENE of Gering between 7:38 PM and 7:45 PM MDT. A Tornado Emergency was in effect for Gering and Scottsbluff from 7:31 PM until 8:00 PM MDT, which was the first ever issuance of this product from the NWS in Cheyenne. Numerous instances of baseball to softball sized hail occurred across Scotts Bluff County including the city of Scottsbluff. A second intense supercell developed and tracked across Scotts Bluff County in the wake of the first tornadic storm, producing a second swath of very large (baseball sized) hail over the same area. In addition to this primary focus area for intense storms, other isolated storms also brought quarter sized hail, 60 MPH wind gusts to portions of the western Nebraska Panhandle.

Tornado event in MORRILL County, NEBRASKA
Start: 23-JUN-23 20:51:00
End: 23-JUN-23 20:51:00
Direct deaths: 0
Event narrative: A storm chaser reported a brief tornado 15 miles N of Broadwater.
Episode narrative: July 28th saw two rounds of severe storms move across the Chicago metro, one during the predawn hours of the morning and another during the evening. The first round brought isolated instances of damaging wind to the area and the second featured damaging winds, severe hail, and 13 tornadoes across the WFO Chicago CWA: 11 in Illinois and 2 in Indiana. Additionally, temperatures in the 90s and high humidity resulted in oppressively hot conditions with afternoon heat indices as high as 105-115ï¿½ï¿½F.

Tornado event in KENDALL County, ILLINOIS
Start: 28-JUL-23 21:35:00
End: 28-JUL-23 21:41:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: This tornado began just west of Stephens Road north of US Rt. 52 and tracked east-southeastward toward the town of Lisbon. The most significant damage occurred as the tornado initially developed and tracked along and just north of US Route 52 west of Roods Road. Damage consistent with high-end EF-0 winds occurred with this narrow tornado, including large downed trees, and a few residences sustaining removal of roofing materials and damage to farm silos. Insulation material was found plastered on the east side of a pole barn on Stephens Road, and a broken window and siding damage was seen on the north side of Duane's Motel. The tornado crossed US Route 52, causing intermittent minor damage to trees as it moved toward Lisbon. The tornado appeared to lift in a field just east of Lisbon.
Episode narrative: During the evening of July 12, scattered thunderstorms dropped 13 tornadoes across far northeast Illinois, primarily within the west of northwest suburbs of Chicago. Of these 13 tornadoes, three were determined to be EF-1 with the remaining 10 being EF-0.

Tornado event in COOK County, ILLINOIS
Start: 12-JUL-23 18:02:00
End: 12-JUL-23 18:07:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: After the first tornado in the O'Hare area lifted, a second EF-0 tornado touched down within the confines of O'Hare Airport just south of the I-90 overpass over Touhy Ave. The tornado initially caused minor roofing and fascia damage to buildings and warehouses on the far north side of the airport. Minor tree damage also occurred in this area, and a parked car was impaled by debris that was thrown by the tornado. The tornado then tracked east across I-90 and into Rosemont, where it blew over a light pole and ticket booths in the Allstate Arena parking lot and caused damage to trees and signs along Mannheim Rd. Video footage taken in Rosemont showed the tornado (which did not necessarily have a fully condensed cloud-to-ground funnel at all times) track into a residential area on the southeast side of Des Plaines, where it produced a concentrated area of tree damage, caused minor roofing and fascia damage to some houses, and caused a few power poles to lean. The tornado may have lost contact with the ground as it crossed the Des Plaines River, but it eventually touched down again in Park Ridge, where it produced tree damage in a neighborhood east of Maine South High School before lifting for good.
Episode narrative: An outflow boundary from earlier day convection focused a gradient of instability and storm development with additional destabilization from heating by early afternoon. Boundary interactions from sluggish storms led to training of heavy rainfall cores, as well as a couple brief tornadoes. Extensive flooding resulted in a state disaster declaration for Sioux County.

Tornado event in SIOUX County, IOWA
Start: 05-AUG-23 13:42:00
End: 05-AUG-23 13:42:00
Direct deaths: 0
Event narrative: Photographic evidence showed a very brief tornado touchdown west of Grant Avenue north of 420th Street. There was no known damage to provide a rating.
Episode narrative: During the evening of July 12, scattered thunderstorms dropped 13 tornadoes across far northeast Illinois, primarily within the west of northwest suburbs of Chicago. Of these 13 tornadoes, three were determined to be EF-1 with the remaining 10 being EF-0.

Tornado event in LAKE County, ILLINOIS
Start: 12-JUL-23 17:52:00
End: 12-JUL-23 17:56:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: This tornado started near Country Lane off Old McHenry Road in Long Grove. Damage along the path of the tornado consisted of snapped trees and tree limbs spread across Twin Orchard Country Club, continuing east-northeast towards Twin Groves Middle School. The tornado appeared to lift over Woodland Park in Buffalo Grove near Twin Groves Middle School.
Episode narrative: Several individual storms moved across Missouri and Illinois before combining into a line of convection as it moved across southern Indiana. The line interacted with the low level jet to produce 6 tornadoes across 4 Indiana counties, including a long track tornado that traveled 25.89 miles through Dubois and Orange Counties. This set the record for the longest known tornado track for the month of August within the NWS Louisville County Warning Area. Other parts of the line surged and caused tree and power line damage along and north of Interstate 64 across southern Indiana and into the greater Louisville, Kentucky area. Additional wind and hail reports were received from the Bluegrass region of Kentucky.

Tornado event in ORANGE County, INDIANA
Start: 06-AUG-23 23:45:00
End: 06-AUG-23 23:46:00
Direct deaths: 0
Event narrative: The tornado began along S Indiana Ave where several large hardwood trees had branches snap towards the east. Some homes saw side wall paneling damage as well as roofing cover damage. Damage continued along W Summit Circle Dr where several more large hardwoods were uprooted and snapped.

The main area of damage is located just south of the downtown area of French Lick on Skyline Drive. This is an area of higher elevation that saw multiple large hardwood trees snapped, some houses saw shingles and side paneling damage. This is where the highest wind speeds of 107 mph  would have occurred based on damage making this tornado an EF1.The tornado then made its way northeast to S Summit St where one home saw significant sidewall damage on both its north and south side, as well as paneling damage.

The tornado then tracked southeast towards W County Road 100 S where it appeared to weaken. Several smaller hardwoods saw their limbs broken off and debris was spread out towards the north. A small sandbox outbuilding had its roof torn off and debris fell just slightly east of the structure. Surrounding trees were bent towards the east and northeast. The winds in this area topped out at 85 mph based on the damage seen.
Episode narrative: A short wave trough moved through the region while its affiliated surface boundary moved from southern Saskatchewan and northeast Montana into northwest North Dakota, and continued to move towards the southeast. Thunderstorms along this line intensified greatly as it settled to the southeast into an environment of elevated instability and deep layer shear, with multiple areas of severe weather developing. Well ahead of the line, another distinct area of severe weather developed where storms initiated along various outflow boundaries, particularly when two boundaries intersected. These storms were northerly moving. Eventually, the fontal boundary settled far enough south that all storms became focused along it. Many storms became very intense, especially a long-lived supercell thunderstorm that originally became severe near central Williams County before moving southeast and remaining severe all the way to northern Burleigh County. The most intense damage from this storm was in the Beulah Bay and Hazen Bay areas of northern Mercer County, where parts of roofs were torn off homes, large trees were uprooted, manufactured homes were severely damaged, and some campers and boats were flipped. Winds were estimated to be up to 95 mph. In addition, crops were severely damaged over a widespread area, with many fields flattened and determined to be a total loss. Along with the large hail and severe wind gusts with this episode, there was one tornado near Wilton in Burleigh County. No damage was reported with the tornado and so by National Weather Service policy the tornado is rated EF Unknown.

Tornado event in BURLEIGH County, NORTH DAKOTA
Start: 01-AUG-23 20:04:00
End: 01-AUG-23 20:07:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: The tornado touched down in an open field southwest of Wilton and impacted no structures. There was no damage to evaluate and so by National Weather Service policy the tornado is rated EF Unknown.
Episode narrative: A frontal boundary moved through Northeastern Pennsylvania, supporting multiple thunderstorms. High instability and shear supported isolated severe thunderstorms containing damaging wind gusts, small hail, and a tornado. NWS surveys confirmed a tornado in Luzerne County and a microburst in Bradford County. While most of the damage was downed trees from these events, there was some property damage as well.

Tornado event in LUZERNE County, PENNSYLVANIA
Start: 12-AUG-23 15:32:00
End: 12-AUG-23 15:37:00
Direct deaths: 0
Property damage: 100.00K
Event narrative: A tornado touched down just north of Interstate 80 along Nescopeck Creek. A narrow alley of numerous downed or snapped trees occurred, roughly following Overlook Road and then West Hollow Road, where a convergent and at times oppositional tree pattern was observed.  The tornado departed West Hollow Road only to reemerge crossing  Route 93, where a few hundred small apple trees were pushed over in an orchard, and a front porch roof was lifted up and over a house,  while peeling back a portion of the primary roof of the residence.  A large tree top was also lofted, and thrown to Zenith Road, to the  left of the tornado path. The tornado intensified while moving along  Hobbie Road, with numerous large trunk snaps, including several trees  damaging a residence with a destroyed shed. The yard had several  missiles in the form of small branches impaling into the ground.  The tornado finally lifted shortly after, before reaching the  intersection of Hobbie Road and Wapwallopen Road.
Episode narrative: Several individual storms moved across Missouri and Illinois before combining into a line of convection as it moved across southern Indiana. The line interacted with the low level jet to produce 6 tornadoes across 4 Indiana counties, including a long track tornado that traveled 25.89 miles through Dubois and Orange Counties. This set the record for the longest known tornado track for the month of August within the NWS Louisville County Warning Area. Other parts of the line surged and caused tree and power line damage along and north of Interstate 64 across southern Indiana and into the greater Louisville, Kentucky area. Additional wind and hail reports were received from the Bluegrass region of Kentucky.

Tornado event in ORANGE County, INDIANA
Start: 06-AUG-23 23:53:00
End: 06-AUG-23 23:55:00
Direct deaths: 0
Event narrative: The first damage point had a few topped and twisted trees near Red Bud Lane and Hospital Rd.  Wind speeds were between 75 and 80 mph with a 50 yard width. There was sporadic tree damage along a creek, and tree damage became more concentrated along Apache and Slaten Drive with trees twisted, topped, and one uprooted tree.  Wind speeds increased to 85 to 90 mph with a width of 75 yards. The width increased to 100 yards along Sandy Hook Road and Paul Street with wind speeds around 90 mph. There were several trees on homes, and increased twisting of the trees with damage going from the east southeast to the north northeast. There were numerous power poles and powerlines down between Indiana 37 and Paul Street.

The peak of the tornado damage was on the east side of Indiana 37 between Locust Street and Oak Street.  Several warehouses had significant roof damage with debris thrown from east southeast to north northeast.  There were several cars that had debris on the west and east side of them. The debris from the warehouse was thrown into a forested area up to 200 yards in distance.  Wind speed in this area were 100 mph with a width of 110 yards. The NWS drone was key to the survey, with drone imagery capturing trees snapped, topped, and uprooted several hundred yards east of the last warehouse.  There was a lot of straight line wind damage between the two different tornadoes in Paoli.
Episode narrative: Severe storms developed during the evening hours in an extremely unstable environment. Two tornadoes occurred. The first tornado touched down in west central Kent County from Alpine Township to Plainfield Township and was rated an EF-1. The second tornado touched down in eastern Ingham County from Williamston to Webberville, before continuing on into Livingston County, and was rated an EF-2 in Ingham County before weakening to an EF-1 in Livingston County. The thunderstorms produced numerous areas of 60 to 75 mph wind gusts and vivid lightning. The combination of the tornadoes, strong wind gusts, and continuous lightning resulted in power outages to 460,000 customers statewide.

Tornado event in INGHAM County, MICHIGAN
Start: 24-AUG-23 20:29:00
End: 24-AUG-23 20:40:00
Direct deaths: 2
Property damage: 75.00M
Event narrative: The tornado moved east northeast and onto I-96 where it remained for around 1.5 miles before turning southeast. The tornado crossed M-52 South of I-96 where it remained just south of I-96 until it crossed into Livingston County after Wallace Road north of Van Orden Road. The tornado briefly continued in Livingston County before lifting near Van Buren Road west of Nicholson Road.  EF-2 damage occurred near and along I-96 with hundreds of trees snapped, several outbuildings heavily damaged and a few homes having roof, siding and window damage. The tornado resulted in 2 deaths and 3 injuries of persons in vehicles on I-96. Both people killed were travelling west as the tornado was travelling east. One of the fatalities was immediate and one person succumbed to their injuries around a week later. Numerous semi trucks were blown over as the tornado crossed onto I-96.  The roof of an assisted living facility in Williamston was ripped off by the tornado, where one minor injury was reported. At least 41 power poles were snapped and 400 power lines were downed.
Episode narrative: Lifting up out of the Big Bend of Florida, Hurricane Idalia weakened to a Tropical Storm as it moved out of southeastern Georgia. The tropical system then moved northeast along the coastal plain of South Carolina. This system produced scattered tree damage, some  flooding and one confirmed tornado.

Tornado event in CLARENDON County, SOUTH CAROLINA
Start: 30-AUG-23 13:57:00
End: 30-AUG-23 14:00:00
Direct deaths: 0
Event narrative: NWS Survey confirmed brief EF-1 tornado with 90 mph winds spawned by Hurricane Idalia near Turbeville. It touched down southwest of Graham Road, moving northwest snapping and uprooting multiple trees along it's .73 mile long path, including along Olanta Highway.
Episode narrative: A strong storm system and its attendant surface low moved across the area during the late afternoon and evening hours. This led to a tornado briefly touching down multiple times as a storm moved eastward near the town of La Harpe. The tornado was rated EF-U as there were no visible signs of damage.

Tornado event in HANCOCK County, ILLINOIS
Start: 06-AUG-23 16:40:00
End: 06-AUG-23 17:15:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A storm chaser shared a video evidence of multiple brief touch downs of suction vortices. The chaser video shows three distinct tornado locations along this path. No reports of damage have been received. The touch downs were very sporadic along a path of 8 miles.
Episode narrative: July 28th saw two rounds of severe storms move across the Chicago metro, one during the predawn hours of the morning and another during the evening. The first round brought isolated instances of damaging wind to the area and the second featured damaging winds, severe hail, and 13 tornadoes across the WFO Chicago CWA: 11 in Illinois and 2 in Indiana. Additionally, temperatures in the 90s and high humidity resulted in oppressively hot conditions with afternoon heat indices as high as 105-115ï¿½ï¿½F.

Tornado event in WILL County, ILLINOIS
Start: 28-JUL-23 22:07:00
End: 28-JUL-23 22:15:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: To the east of the tornado that lifted over Midewin National Tallgrass Prairie, a second tornado began near South Warner Bridge Road between Wilton Center and West Doyle Roads. Here, several trees were uprooted and numerous large limbs were downed. One tree fell onto a residence, resulting in roof damage. Shingle loss and damage to gutters, siding, fascia, and soffit were all consistent with high-end EF-0 winds near 85 mph. The tornado tracked nearly due east to the north of West Arsenal Road, causing intermittent minor damage to corn and trees. The tornado moved southeast and crossed West Arsenal Road just west of US Route 52. At this point, the tornado was likely less than 15 yards wide with winds around 60 mph. It continued eastward, crossing north of West Joliet Road near Laughton Preserve. The tornado appeared to have continued east a few more miles before dissipating in a field just west of US Route 45.
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 ELMORE County, ALABAMA
Start: 26-MAR-23 21:22:00
End: 26-MAR-23 21:27:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: National Weather Service meteorologists surveyed damage in northeast Elmore County and determined that it was consistent with an EF1 tornado, with maximum winds near 110 mph. The tornado touched down in a wooded area just west of Tecumseh Point Road where tree damage was immediately significant along a fairly wide path. The tornado then moved into the southwest portion of Lake Martin and across the Castaway Island area, where numerous pine trees were uprooted, with some falling on power lines and homes. The only visible damage to any structures appeared to have been caused by fallen trees. From there, the tornado moved back over the water and then into The Ridge neighborhood. Three to four homes right along the lakeshore on Sundown Ridge and Dawson Point roads sustained considerable roof and siding damage, and many surrounding trees were uprooted. A couple of roughly 130-foot tall concrete electric transmission poles were downed south of the main path at the end of Dawson Point Road. Immediately east, more trees were downed along South Ridge Road, although surrounding homes appeared to have no visible damage. The tornado then crossed an inaccessible island before moving into Tallapoosa County near Long Beach Drive.
Episode narrative: A severe line of thunderstorms rolled through north Alabama during the late evening hours of the 24th into the early morning hours of the 25th, producing 7 tornadoes. An embedded supercell thunderstorm with a history of tornadoes in Mississippi moved east-northeast across northwest Alabama, yielding another two tornadoes in Lauderdale County in Florence and near Anderson. Associated with this line, multiple narrow swaths of intense damaging winds of 60 to 90 mph occurred across the Shoals metro area, including Sheffield, Tuscumbia, Muscle Shoals and Florence.  The winds caused widespread power outages, damaged numerous structures, and toppled or snapped numerous trees, power poles and power lines. A few trees and power poles were dropped onto residences and vehicles, either destroying or heavily damaging them. Roof damages were reported at many locations as well. All told, an estimated #### million in damages occurred, the majority in northwest Alabama in Colbert and Lauderdale Counties.  As the line continued east, additional tornadoes were spawned in Lawrence, Morgan, Jackson and DeKalb Counties.

Tornado event in LAWRENCE County, ALABAMA
Start: 24-MAR-23 23:23:00
End: 24-MAR-23 23:24:00
Direct deaths: 0
Event narrative: The tornado likely first touched down between County Road 203 and Highway 157 in far eastern Lawrence County. Minor roof damage to chicken houses was noted at this location before the tornado crossed the highway. Sporadic tree damage was observed near the Highway 36 and CR 200 intersection. Peak wind speeds of 74 mph were estimated. The tornado then moved into Morgan County toward Danville.