torre126/tornado-structure-data huggingface dataset:
Episode narrative: Several strong to severe thunderstorms moved into eastern Missouri in the afternoon hours of April 15th. These storms were initially producing copious large hail, but rapidly transitioned into tornadic storms. The first tornado was associated with a supercell ahead of a congealing line of convection moving rapidly toward the Mississippi River. A portion of this line of storms rapidly surged eastward, resulting in numerous tornadoes in Jefferson county in Missouri, and Monroe, Madison, St. Clair, and Washington counties in Illinois. In total, 12 tornadoes have been identified, including 3 EF-1s, 6 EF-0s, and 3 tornadoes of unknown intensity that produced no damage.

Tornado event in JEFFERSON County, MISSOURI
Start: 15-APR-23 17:24:00
End: 15-APR-23 17:25:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A tornado formed around 6:24pm CDT near the corner of Elm and 3rd streets on the northwest side of downtown Hillsboro, causing minor damage to the siding of the Good Shepherd Catholic Church. It continued eastward along the northern periphery of the downtown area, producing sporadic minor tree damage as it did so. When it approached Business Highway 21, the tornado damaged the facade and steeple of the First Baptist Church. Across the highway along 4th Street, the roof of the fire department building and a residence received minor damage. As the tornado moved over Vreeland Road and tracked along Sunny Lane, it briefly intensified, with several trees uprooted along the lane and minor roof damage occurring on an outbuilding. The tornado then weakened as it neared the end of Sunny Lane, dissipating in the wooded area just beyond the end of the roadway. Overall the tornado was rated EF0 with a max wind speed of 77 mph. The path length was 0.57 miles with a max path width of 200 yards. No deaths or injuries were reported.

Tornado event in JEFFERSON County, MISSOURI
Start: 15-APR-23 17:34:00
End: 15-APR-23 17:36:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A tornado formed on the northwest side of Pevely, MO around 634 PM CDT and tracked to the southeast into the northern portions of town producing minor roof, tree, siding and sign damage. After it crossed Pleasant Road it tracked in a more easterly direction, causing additional minor tree, power line and roof damage before lifting and dissipating on the western side of Oak Valley Golf Course and Resort. Overall the tornado was rated EF1 with a max wind speed of 100 mph. The path length was 0.93 miles with a max path width of 150 yards. No deaths or injuries were reported.
Episode narrative: A very strong low pressure system deepened over the central Great Plains beginning on March 31, 2023 and continuing into April 1st. As this storm system approached Middle Tennessee from the west, southerly flow at the surface resulted in plenty of moisture and warm temperatures for the area. This all helped to set up an early spring severe weather episode for the area. This system's accompanying cold front approached the Mississippi River late on March 31st. Thunderstorm activity across western Tennessee quickly turned severe, but this early activity tended to rapidly weaken as it crossed the Tennessee River where instability was not favorable. However, as the cold front approached Middle Tennessee and the low level jet strengthened, these thunderstorms were able to better sustain themselves. Numerous severe thunderstorms impacted Middle Tennessee through the early morning hours of April 1st. These thunderstorms produced large hail and damaging winds, while several thunderstorms also produced tornadoes. In total, four tornadoes were confirmed in National Weather Service Nashville's area. The most impacted area was Readyville along the Rutherford and Cannon county line were a strong EF2 tornado caused significant damage.

Tornado event in RUTHERFORD County, TENNESSEE
Start: 01-APR-23 00:41:00
End: 01-APR-23 00:53:00
Direct deaths: 0
Property damage: 250.00K
Event narrative: A strong EF2 tornado with estimated peak winds of 130 mph touched down six miles south of downtown Murfreesboro near County Farm Road then moved northeast along Elam Road where several trees and fences were blown down and a few homes suffered minor damage. Trees continued to be blown down as the tornado crossed Lyle Creek Road, Bradyville Pike, Floraton Road, and McElory Road. The tornado strengthened to EF1 as it cross Highway 70 west of Woodbury Pike, significantly damaging one home and several nearby outbuildings. Damages are estimated for Rutherford County.
Episode narrative: An upper low pressure system over the Four Corners Region ejected northeast through the Southern Rockies into the Central Plains by the afternoon of April 5th, which reinforced a cold front southeast into East Texas, Southwest Arkansas, and North Louisiana before stalling out late in the day. Large scale ascent increased along and ahead of the front and the ejecting upper low, which had tapped into a warm and moderately unstable air mass that had pooled north from the Gulf of Mexico ahead of the front. This resulted in numerous shower and thunderstorm development during the morning around and after daybreak over Northeast Texas and Southwest Arkansas, which eventually moved into portions of extreme Northwest Louisiana by late morning/early afternoon. Some of these storms became severe, with damaging winds observed and even an isolated tornado briefly touching down just west of Linden in Cass County Texas. While these storms eventually weakened by mid-afternoon, additional redevelopment occurred along the slowing front farther south of I-20 in East Texas by late afternoon and early evening as they tapped stronger instability, with isolated severe thunderstorms producing large hail affecting portions of Cherokee and Panola Counties before moving into extreme Northwest Louisiana.

Tornado event in CASS County, TEXAS
Start: 05-APR-23 07:44:00
End: 05-APR-23 07:45:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A NWS Storm Survey concluded that a brief EF-0 tornado with estimated maximum winds near 85 mph briefly touched down along Farm Road 130, where it uprooted approximately 10 trees in a convergent pattern while also downing several small and large tree limbs.
Episode narrative: As a warm front lifted northward, a highly unstable and sheared environment developed across west-central Illinois during the afternoon and evening of April 4th.  Despite the favorable parameters, thunderstorm activity was slow to initiate due to the lack of a forcing mechanism and the presence of low-level capping.  As a subtle short-wave approached from the west and weakened the cap, a large supercell thunderstorm formed over southern McDonough County then tracked east-northeast across Fulton County.  This storm produced a total of 4 tornadoes in Fulton County...including an EF-3 tornado that tracked across the northwest side of Lewistown.  Very large hail was reported as well...with the largest stone measuring 4 inches in diameter in the town of Bernadotte.

Tornado event in FULTON County, ILLINOIS
Start: 04-APR-23 18:29:00
End: 04-APR-23 18:30:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A storm chaser reported a brief tornado touchdown southeast of the main Lewistown tornado at 7:29 PM CDT.  The tornado quickly dissipated and no damage was observed.
Episode narrative: Several strong to severe thunderstorms moved into eastern Missouri in the afternoon hours of April 15th. These storms were initially producing copious large hail, but rapidly transitioned into tornadic storms. The first tornado was associated with a supercell ahead of a congealing line of convection moving rapidly toward the Mississippi River. A portion of this line of storms rapidly surged eastward, resulting in numerous tornadoes in Jefferson county in Missouri, and Monroe, Madison, St. Clair, and Washington counties in Illinois. In total, 12 tornadoes have been identified, including 3 EF-1s, 6 EF-0s, and 3 tornadoes of unknown intensity that produced no damage.

Tornado event in JEFFERSON County, MISSOURI
Start: 15-APR-23 17:30:00
End: 15-APR-23 17:35:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A tornado formed northeast of Festus, MO along Old A Highway just after 6:30pm CDT on April 15. It moved northeastward through a subdivision off of Old A Highway and west of West City Park, producing sporadic minor structural damage. As the tornado moved into West City Park, it increased in strength, snapping and uprooting several trees. As it moved over Horine Road, it reached peak strength and produced significant damage to a home. The tornado weakened slightly as it continued on to Interstate 55, producing minor damage to homes, outbuildings, and trees as it did so. As the tornado crossed I-55, it overturned a southbound semi causing minor injuries to the driver. After crossing Interstate 55, the tornado turned more northeasterly and crossed McNutt Street and Lake Drive in Herculaneum, continuing to produce additional minor structural and tree damage. The tornado then turned more easterly and tracked along Joachim Avenue and just south of Herculaneum High School, where it produced minor roof damage to a church and knocked over light poles. As it entered the Dunkin and Fletcher Memorial Park it weakened and dissipated. Overall the tornado was rated EF1 with a max wind speed of 100 mph. The path length was 3.97 miles with a max path width of 360 yards. One injury was reported, but no fatalities.
Episode narrative: Several weak brief tornadoes touched down during the evening hours as a cold front and trough of low pressure moved through Eastern NC.

Tornado event in ONSLOW County, NORTH CAROLINA
Start: 22-APR-23 19:08:00
End: 22-APR-23 19:09:00
Direct deaths: 0
Event narrative: A tornado touched down northwest of Richlands, in northwest Onslow County. The tornado peeled back metal sheeting on the roof of a garage structure, and moved a trailered boat several feet into the rear of a parked pickup truck. The tornado then crossed A.I. Taylor Road and removed some siding on a residence. The tornado then caused some minor damage to a a metal storage shed along a dirt road off of A.I. Taylor Road before lifting. The strongest winds were estimated to be around 75 mph.
Episode narrative: Storms developed along the southwest Missouri/southeast Kansas border during the early afternoon and tracked eastward across the area through the early to mid evening. Hail up to four inches in diameter was reported near the town of Arcola, in Dade County. Other reports of two inch hail or larger were received from Barton, Cedar, Dallas, Greene, Hickory, Polk, and Taney Counties. The Automated Surface Observation System (ASOS) at Vichy in Maries County recorded a wind gust of 97 mph. It was later confirmed that an EF-2 tornado moved over the area, resulting in 5 injuries to the residents of a house that was heavily damaged.

Tornado event in MARIES County, MISSOURI
Start: 15-APR-23 15:35:00
End: 15-APR-23 15:43:00
Direct deaths: 0
Property damage: 2.00M
Event narrative: A National Weather Service storms survey determined that an EF-2 tornado with maximum winds of 122 mph touched down west of Vichy and traveled 6.8 miles lifting just northeast of the Vichy/Rolla airport. The path of the tornado was intermittent with mostly EF-1 damage but EF-2 damage did occur west of Vichy to north east of Vichy.  Along the path, which was 880 yards at its widest, multiple trees were uprooted or snapped. A home suffered significant damage to exterior walls and some interior walls. Several other homes suffered minor siding damage. Two metal frame buildings lost roofs, and another metal building had two walls blown down at the Vichy/Rolla Airport where the ASOS measured 97 mph winds. Several outbuildings suffered minor to major damage, two aircraft suffered minor damage. Five people suffered minor injuries.
Episode narrative: Several strong to severe thunderstorms moved into eastern Missouri in the afternoon hours of April 15th. These storms were initially producing copious large hail, but rapidly transitioned into tornadic storms. The first tornado was associated with a supercell ahead of a congealing line of convection moving rapidly toward the Mississippi River. A portion of this line of storms rapidly surged eastward, resulting in numerous tornadoes in Jefferson county in Missouri, and Monroe, Madison, St. Clair, and Washington counties in Illinois. In total, 12 tornadoes have been identified, including 3 EF-1s, 6 EF-0s, and 3 tornadoes of unknown intensity that produced no damage.

Tornado event in MONROE County, ILLINOIS
Start: 15-APR-23 17:34:00
End: 15-APR-23 17:54:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: At 6:34 PM CDT a tornado touched down on Bluff Road about 1.8 miles southwest of Maeystown. As it tracked to the northeast it caused minor tree damage as well as moderate damage to a farm outbuilding on the southwest side of town. It continued to the northeast across Monroe County causing sporadic tree damage and destroyed a small outbuilding. About 1.5 miles southwest of Hecker the roof of a barn was removed. The tornado crossed into southern St. Clair County about 0.4 of a mile northwest of Hecker. The tornado was rated EF0 with a max wind speed of 85 mph. The path length in Monroe County was 15.91 miles with a max path width of 100 yards. Overall, the tornado was rated EF1 with a max wind speed of 100 mph. The total path length was 19.57 miles with a max path width of 100 yards. No deaths or injuries were reported.
Episode narrative: A line of thunderstorms developed along a strong cold front near and east of I-95 from northeastern to southern Maryland. An embedded supercell spawned an EF-1 tornado over Cecil County, and there were numerous instances of wind damage as a result of straight-line winds of up to around 70 MPH.

Tornado event in CECIL County, MARYLAND
Start: 01-APR-23 17:34:00
End: 01-APR-23 17:41:00
Direct deaths: 0
Property damage: 1000.00K
Event narrative: A severe thunderstorm produced an EF1 tornado just east of Rising Sun, MD in Cecil County Saturday evening April 1 2023 between 6:34 PM and 6:41 PM EDT. The severe thunderstorm formed as a result of a multi-cell cluster of thunderstorms that formed ahead of a cold front passage late Saturday afternoon. As the cell moved east of Rising Sun, it began to show signs of rotation.

The tornado touched down in Plumpton Park Zoo, downing a few dozen trees. It then  proceeded to near the village of Calvert, just east of Chandlee Road and its intersection with Telegraph Road/MD-273 where three wooden power poles were snapped. The tornado continued to move east along Telegraph Road and caused uprooted and snapped hardwood and softwood trees near Rosebank United Methodist Church. The tornado then moved to the southeast and resulted in extensive tree and minor  structural damage in the vicinity of Calvert Regional Park, Cecil Arena, and Rising Sun High School. Over 100 trees were damaged in this area with numerous softwood and hardwood trees being uprooted and snapped. The area was littered with small tree debris. Damage to fencing was observed along with shingles being removed, soffit, fascia, and siding damaged, and other minor structural damage to homes and businesses. At the Calvert Regional Park, portable toilets were broken into several smaller parts and moved more than 300 yards into fields to the north of the storm's track. Also, off North East Road, a wooden power pole was snapped along with several trees downed and a sign blown off the Cecil Arena. The tornado moved further east toward Dr. Miller Road where a small barn collapsed and was moved approximately 50 yards into a field as a result. Additional softwood and hardwood trees were uprooted and snapped along Blue Ball Road with two sheds being moved approximately 100 yards into a field. As the tornado moved to the northeast and began to occlude, additional hardwood and softwood trees were uprooted and snapped between Blue Ball Road and Telegraph Road.

The Federal Aviation Administration's Terminal Doppler Weather Radar in Pennsauken Township, NJ depicted a tight velocity couplet that corresponded to the path of the damage described above.

Additional scattered tree damage in northern Cecil County, MD was determined to be caused by straight-line winds.
Episode narrative: A very strong low pressure system deepened over the central Great Plains beginning on March 31, 2023 and continuing into April 1st. As this storm system approached Middle Tennessee from the west, southerly flow at the surface resulted in plenty of moisture and warm temperatures for the area. This all helped to set up an early spring severe weather episode for the area. This system's accompanying cold front approached the Mississippi River late on March 31st. Thunderstorm activity across western Tennessee quickly turned severe, but this early activity tended to rapidly weaken as it crossed the Tennessee River where instability was not favorable. However, as the cold front approached Middle Tennessee and the low level jet strengthened, these thunderstorms were able to better sustain themselves. Numerous severe thunderstorms impacted Middle Tennessee through the early morning hours of April 1st. These thunderstorms produced large hail and damaging winds, while several thunderstorms also produced tornadoes. In total, four tornadoes were confirmed in National Weather Service Nashville's area. The most impacted area was Readyville along the Rutherford and Cannon county line were a strong EF2 tornado caused significant damage.

Tornado event in CANNON County, TENNESSEE
Start: 01-APR-23 00:53:00
End: 01-APR-23 00:59:00
Direct deaths: 0
Property damage: 3.00M
Event narrative: This narrative continues and concludes a tornado that began in Rutherford County. Near the Rutherford/Cannon county line, the tornado intensified even further to a strong EF2 and moved into the Readyville community on Murfreesboro Road, heavily damaging or destroying numerous homes and businesses. Several historic properties dating to the early 1800s such as the Readyville Mill and The Corners on Stones River were also heavily damaged. The tornado weakened as it continued northeast but still blew down numerous trees and caused minor damage to homes on Porterfield Road, Locke Creek Road, and Auburntown Road before the tornado lifted. Two people were injured. Damages are estimated for Cannon County.
Episode narrative: Several weak brief tornadoes touched down during the evening hours as a cold front and trough of low pressure moved through Eastern NC.

Tornado event in DUPLIN County, NORTH CAROLINA
Start: 22-APR-23 19:01:00
End: 22-APR-23 19:02:00
Direct deaths: 0
Event narrative: The tornado touched down at a residence along Lester Houston Road just to the east of Beulaville. The tornado first snapped several large trees, then tore off at least half the shingles of a garage behind the residence. Shingle damage was found on both the north and south side of the garage, which is a strong indication of a circulation. A large garage bay door was also blown in, and the east side of the garage had the frame removed from the foundation. The strongest winds were estimated around 90 mph.
Episode narrative: Several strong to severe thunderstorms moved into eastern Missouri in the afternoon hours of April 15th. These storms were initially producing copious large hail, but rapidly transitioned into tornadic storms. The first tornado was associated with a supercell ahead of a congealing line of convection moving rapidly toward the Mississippi River. A portion of this line of storms rapidly surged eastward, resulting in numerous tornadoes in Jefferson county in Missouri, and Monroe, Madison, St. Clair, and Washington counties in Illinois. In total, 12 tornadoes have been identified, including 3 EF-1s, 6 EF-0s, and 3 tornadoes of unknown intensity that produced no damage.

Tornado event in ST. CLAIR County, ILLINOIS
Start: 15-APR-23 17:54:00
End: 15-APR-23 17:59:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: The tornado crossed into St. Clair County about 0.4 of a mile northwest of Hecker. The tornado intensified as it crossed Illinois Route 159. In this area, it destroyed a large barn, caused minor roof damage to a house and snapped off a number of trees. It continued to track to the northeast causing sporadic tree damage and minor roof damage to outbuildings before lifting and dissipating on Klein School Road just north of intersection with Illinois Route 156 at 6:59 PM CDT. The tornado was rated EF1 in St. Clair County with a max wind speed of 100 mph. The path length was 3.66 miles with a max path width of 100 yards. Overall, the tornado was rated EF1 with a max wind speed of 100 mph. The total path length was 19.57 miles with a max path width of 100 yards. No deaths or injuries were reported.
Episode narrative: A closed low pressure system moved slowly across the northern Plains and spawned multiple tornadoes across north central Nebraska.

Tornado event in CUSTER County, NEBRASKA
Start: 12-MAY-23 15:00:00
End: 12-MAY-23 15:01:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: This tornado touched down in an open field.  No damage was observed.
Episode narrative: A lone supercell thunderstorm moved from south central Kansas into central Kansas during the afternoon and evening of April 19th, 2023.  The cyclic storm produced very large hail up to 4 inches in diameter and numerous tornadoes across Chase county, Kansas.   Eight tornadoes formed from the supercell with the strongest producing EF2 damage.

Tornado event in CHASE County, KANSAS
Start: 19-APR-23 19:35:00
End: 19-APR-23 19:39:00
Direct deaths: 0
Property damage: 5.00K
Event narrative: The sixth tornado produced by the supercell tracked across the town of Cottonwood Falls producing EF1 damage, mainly to trees and minor damage to roof structures.
Episode narrative: A developing early morning squall line ahead of a cold front moving across the Eastern Gulf of Mexico produced an EF-1 tornado in Charlotte County along with few additional 50+ mph sub-severe wind gusts across southwest Florida.

Tornado event in CHARLOTTE County, FLORIDA
Start: 30-APR-23 05:34:00
End: 30-APR-23 05:41:00
Direct deaths: 0
Property damage: 50.00K
Event narrative: NWS determined that a high end EF-1 tornado with 110 mph winds occurred in eastern Charlotte County, destroying a metal barn and snapping several telephone poles along with overturning a small vehicle trailer and pushing it into a tree.