torre126/tornado-structure-data huggingface dataset:
Episode narrative: During the afternoon and evening of the 31st, a wave of severe thunderstorms produced numerous tornadoes, severe hail, extensive wind damage, and localized flooding across northern and northeastern Illinois. A total of 37 tornadoes were confirmed across the state. The NWS Chicago office tied a record for the most tornadoes to occur in a single calendar day within the office's county warning area with 22, 17 of which occurred in Illinois. One EF-2 tornado occurred in south-central Lee County and two others in northwest Indiana. Some of the more notable damage includes multiple semi trucks blown over, a garage that had been completely destroyed southeast of Amboy, and the partial roof collapse of the Apollo Theatre in Belvidere which unfortunately resulted in one fatality and 40 injuries.

Tornado event in OGLE County, ILLINOIS
Start: 31-MAR-23 18:24:00
End: 31-MAR-23 18:32:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: The tornado touched down about 3 miles southwest of Davis Junction. It then went on to track trough the Davis Junction town center where it did mostly minor, EF-0 damage. EF-1 damage was done to a single family home on the north side of town. This tornado then crossed into Winnebago County south of Rockford, and eventually on into Boone County where it would later cause the partial roof collapse of the Apollo Theatre in Belvidere resulting in one fatality and 40 injuries.

Tornado event in WINNEBAGO County, ILLINOIS
Start: 31-MAR-23 18:32:00
End: 31-MAR-23 18:37:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: This tornado had crossed into Winnebago County from Ogle County in the far south side of Rockford along Edson Rd just west of S Mulford Rd. While in Winnebago County, the tornado caused generally EF-0 damage to farmland. The tornado had done mostly EF-0 damage while in Ogle County with one instance of EF-1 damage done to a home. The storm then crossed into Boone County south of Cherry Valley where it would later cause the partial roof collapse of the Apollo Theatre in Belvidere resulting in one fatality and 40 injuries.

Tornado event in KENDALL County, ILLINOIS
Start: 31-MAR-23 18:55:00
End: 31-MAR-23 18:57:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: The tornado touched down near the intersection of Concord Dr and Columbia Ln in southwestern Montgomery. It produced minor damage to an outbuilding shortly after dropping and to a few trees before crossing into Kane County just a couple of minutes after forming. The storm then continued northeastward through Montgomery damaging mostly trees before lifting on the south side of Aurora.

Tornado event in WILL County, ILLINOIS
Start: 31-MAR-23 19:05:00
End: 31-MAR-23 19:08:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: After dropping in far eastern Kendall County just about a minute sooner and doing damage to shingles and collapsing a chimney, this tornado crossed into Will County near Hadrian Dr in far west Joliet. It continued to do damage to shingles and trees before lifting a couple of minutes later near the intersection of Bedford Dr and Brighton Ln.
Episode narrative: There were two rounds of severe thunderstorms on April 4th. The first round in Illinois occurred during the morning hours.  These storms developed in eastern Iowa and moved into northwest Illinois by mid morning.  Despite the elevated nature of the storms and a very stable low level, a very strong downdraft surge occurred south of the hail core over the Illinois side of the Quad Cities metro, with the Quad City Airport ASOS measuring a wind gust near 90 MPH. Extensive damage occurred from Rock Island to Colona IL to buildings, trees and power poles, with some structures seeing ripped-off roofs. A survey team determined a brief tornadoes touched down in Moline, Colona, and near Geneseo Illinois.

Tornado event in HENRY County, ILLINOIS
Start: 04-APR-23 08:57:00
End: 04-APR-23 08:58:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A brief tornado developed Tuesday morning in Colona, Illinois, and was embedded in a broader swath of damaging straight line winds. The tornado was on the ground for 0.4 miles and west 50 yards wide.  the peak estimated winds were 115 MPH. The tornado moved through the northern portion of Colona, and was on the ground for about a half mile. The tornado was captured on video, ripping the entire roof off a gas station and tossing it into a brick building just to the south. The front wall of the building also collapsed. The tornado also uprooted trees, and caused minor house damage.The tornado was rated a low-end EF-2, with maximum winds around 115 mph.
Episode narrative: During the afternoon and evening of the 31st, a wave of severe thunderstorms produced numerous tornadoes, severe hail, and extensive wind damage across northwestern Indiana. A total of 23 tornadoes were confirmed across the state. The NWS Chicago office tied a record for the most tornadoes to occur in a single calendar day within the office's county warning area with 22, 5 of which occurred in Indiana. Two EF-2 tornadoes occurred in Benton County and one other in Lee County, Illinois. Some of the more notable damage includes a few homes with walls and portions of roofing blown away, a wind turbine that had been snapped in half, and wind turbine blades thrown as far as 600 yards, all a result of the two EF-2 tornadoes in Benton County.

Tornado event in PORTER County, INDIANA
Start: 31-MAR-23 20:01:00
End: 31-MAR-23 20:02:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: This brief tornado dropped in Union Township along W County Road 350 N just west of N County Road 650 W a couple of miles northwest of Shorewood Forest. It would track just over a half a mile to the east-southeast before lifting soon after crossing N County Road 625 W. Minor damage was noted to trees, outbuildings, and some farm equipment.

Tornado event in BENTON County, INDIANA
Start: 31-MAR-23 20:33:00
End: 31-MAR-23 20:44:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: The tornado touched down northwest of Oxford near the intersection of S County Road 200 E and E County Road 500 S. It tracked northeast for over 10 miles before crossing into southwest White County at E County Road 100 S. It lifted just east of South County Road 850 W at S US Hwy 231 in rural White County. The storm primarily downed trees and damaged farm outbuildings. However, it also caused damage to a few homes. The tornado is believed to have reached EF-2 intensity with wind speeds near 115 mph after crossing S County Road 875 E where large portions of a roof and some siding were torn off of a home.
Episode narrative: An anomalously strong mid- and upper-level trough for late June moved across the Great Lakes and Ohio Valley on June 25th. A 60-70 kt 500 mb jet bisected the mid-Mississippi Valley, placing central Kentucky and southern Indiana in the left exit region, contributing to broad rising motion over the area. Near the surface, a well-defined cold front crossed the Mississippi River during the mid-to-late afternoon hours on June 25th, with temperatures in the upper 80s and lower 90s and dewpoints in the upper 60s and lower 70s in the warm sector ahead of the front. In the warm sector, mixed-layer CAPE of 2500-3500 J/kg provided plenty of fuel for convective development aside from the aforementioned favorable jet forcing. With 25-35 knots of flow at 850 mb, there was also ample vertical wind shear across the region, with effective bulk shear values generally above 45 kt, leading to the development of supercellular structures. The parameter space was favorable for all severe hazards. 0-1 km storm-relative helicity was over 200 m2/s2 and significant tornado parameter values were frequently greater than 1, suggesting the potential for rotating mesocyclones and tornadoes. Downdraft CAPE was over 1200 J/kg along and west of Interstate 65, suggesting the potential for strong winds from any formidable downdrafts. Finally, sufficient mid-level lapse rates and significant hail parameter values warranted concerns for severe hail. As would be expected given the parameter space, all severe hazards were observed, with a couple tornadoes and numerous straight-line wind and hail reports across southern Indiana and central Kentucky. Straight-line winds of up to 100 mph and multiple reports of golf ball or larger size hail serve as evidence of the highly unusual setup across the Ohio and Tennessee valleys June 25th.

Tornado event in DUBOIS County, INDIANA
Start: 25-JUN-23 15:45:00
End: 25-JUN-23 15:46:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: The tornado started just west of Haw Creek Road in southern Martin County. While in Martin County the tornado traveled around 8 miles to the East-Southeast and produced EF2 damage. Once the tornado crossed into Dubois County, it began to weaken. It snapped and uprooted trees. The tornado lifted just before North 960 East in Dubois County.
Episode narrative: A powerful storm system moved across eastern Iowa into southwest Wisconsin, sweeping a strong cold front through the area during the afternoon hours of Thursday, April 20th. A line of thunderstorms developed quickly along the front, with some of them surpassing severe thresholds producing hail up to the size of a golf ball.

An EF1 tornado tracked to the northeast for about 6 miles starting just east of Morrison, IL just before 3 PM CST.

Tornado event in WHITESIDE County, ILLINOIS
Start: 20-APR-23 14:56:00
End: 20-APR-23 15:03:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: An isolated tornado began just east of Morrison IL around 2:56 PM CST. The tornado damaged a power pole and a tree at this location. The tornado then caused sporadic damage until it approached Fulfs Road.  It strengthened at this location and caused damage to trees, farm outbuildings, and a power pole. The tornado ended shortly after this location. Wind speeds are estimated in the 105-110 MPH range, with a rating of EF1. At it's widest, the tornado was 300 yards and was likely a multi-vortex tornado. The tornado path length was nearly 6 miles.
Episode narrative: The approach of an anomalously strong (for mid-June) upper-level disturbance lead to a widespread severe weather outbreak across portions of the forecast area, especially along and west of the I-35 corridor, during the afternoon into late evening of the 15th. This included the development of numerous supercell thunderstorms across the area. Despite relatively high cloud bases, strong low-level instability and sufficient low-level wind shear aided tornadic outcomes, with eleven tornadoes confirmed across western into southern Oklahoma. Numerous reports of large to very large hail, including reports of 4-inch hail in Lawton, and wind damage were received across area.

Tornado event in JEFFERSON County, OKLAHOMA
Start: 15-JUN-23 17:21:00
End: 15-JUN-23 17:29:00
Direct deaths: 0
Property damage: 100.00K
Event narrative: This tornado moved east-southeast out of Stephens County into Jefferson County. The tornado then turned southeast and dissipated soon after crossing State Highway 89 between E1890 Road and E1900 Road. In Jefferson County, at least four homes were damaged and a couple of barns were damaged or destroyed as well as many trees damaged.
Episode narrative: An isolated supercell developed along a dry line and produced a tornado.

Tornado event in LOUP County, NEBRASKA
Start: 25-JUL-23 20:25:00
End: 25-JUL-23 20:38:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: Sherriff Smith reports tornado on the ground, location approximated with radar data.
Episode narrative: Supercell thunderstorms developed toward midday across the middle Red River Valley along and south of a stalled frontal boundary. These thunderstorms progressed east southeast with upper 80s temperatures on the warm side of the boundary with dew points exceeding 75 degrees. Mid-level lapse rates of 7-8 C/km overspread this very moist low-level air mass over a rather broad west-to-east corridor, supporting extreme instability upwards of 4500 J/kg well downstream of the upscale-growing convection. Coinciding this corridor of extreme buoyancy was very strong effective bulk shear near 65 kts along with hodographs that were modestly curved at the low levels and elongated above 3 km AGL. Numerous local storm reports were documented of large hail, damaging wind gusts, and an isolated tornado across parts of East and Northeast Texas throughout the event.

Tornado event in CASS County, TEXAS
Start: 14-JUN-23 11:43:00
End: 14-JUN-23 11:54:00
Direct deaths: 0
Property damage: 2.00M
Event narrative: An EF-2 tornado with estimated maximum winds near 120 mph initially produced damage along the shore of Wright Patman Lake. It snapped and uprooted hundreds of hardwood and softwood trees along its path, first crossing CR-3555. After it crossed CR-3555, it peeled part of a roof off of a single family home. The tornado continued to snap and uproot trees as it paralleled CR-3555 and crossed CR-3551 and CR-3554. The tornado strengthened to EF-2 intensity as it crossed CR-3659 and produced more widespread snapping of trees. As the tornado continued on, its most intense damage was at a two-story industrial facility along US-59. The tornado tore off the roof and damaged walls of the facility, bending and breaking parts of metal frame of its roof structure. 

After crossing US-59 and tossing vehicles, the tornado snapped  more trees on the other side of the road. The tornado weakened some with more uprooting and sporadic tree snaps as it crossed FM-2327, CR-3781, CR-3778, FM-3129, and CR-3886. It finally lifted as it crossed CR-3889 as damage transitioned to all straight-line wind damage with winds estimated at 80 to 90 mph as the storm continued to the border of Cass County, Texas and Miller County, Arkansas.
Episode narrative: During the afternoon and evening of the 31st, a wave of severe thunderstorms produced numerous tornadoes, severe hail, extensive wind damage, and localized flooding across northern and northeastern Illinois. A total of 37 tornadoes were confirmed across the state. The NWS Chicago office tied a record for the most tornadoes to occur in a single calendar day within the office's county warning area with 22, 17 of which occurred in Illinois. One EF-2 tornado occurred in south-central Lee County and two others in northwest Indiana. Some of the more notable damage includes multiple semi trucks blown over, a garage that had been completely destroyed southeast of Amboy, and the partial roof collapse of the Apollo Theatre in Belvidere which unfortunately resulted in one fatality and 40 injuries.

Tornado event in LEE County, ILLINOIS
Start: 31-MAR-23 17:55:00
End: 31-MAR-23 18:01:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: This tornado began just south of Illinois Highway 92 in northwest Bureau County. It then tracked through far southeast Whiteside County within 3 miles of the town of Deer Grove. This tornado would continue for 6 additional miles into southwest Lee County, where it dissipated near Maytown Road and Atkinson Road. The damage from this tornado included numerous heavily damaged outbuildings, several snapped power poles, and dozens of trees. The worst damage was to a large farmstead outbuilding along the Whiteside-Bureau county line with the roof and two of the four walls destroyed and debris slung well into a field.

Tornado event in OGLE County, ILLINOIS
Start: 31-MAR-23 17:56:00
End: 31-MAR-23 18:01:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: This tornado began southeast of Lanark in Carroll County near Harvest Rd west of Shannon Rte. It tracked to the northeast crossing into rural Ogle County at N Brookville Rd north of W White Oak Rd. Shortly before dissipating, the storm crossed into Stephenson County at N Mt. Vernon Rd. It then lifted as it approached Florence Rd west of IL Rt. 26 S. Extensive damage was done to several farm buildings and a few trees were downed as well.
Episode narrative: There were two rounds of severe thunderstorms on April 4th. The first round in Illinois occurred during the morning hours.  These storms developed in eastern Iowa and moved into northwest Illinois by mid morning.  Despite the elevated nature of the storms and a very stable low level, a very strong downdraft surge occurred south of the hail core over the Illinois side of the Quad Cities metro, with the Quad City Airport ASOS measuring a wind gust near 90 MPH. Extensive damage occurred from Rock Island to Colona IL to buildings, trees and power poles, with some structures seeing ripped-off roofs. A survey team determined a brief tornadoes touched down in Moline, Colona, and near Geneseo Illinois.

Tornado event in ROCK ISLAND County, ILLINOIS
Start: 04-APR-23 08:41:00
End: 04-APR-23 08:43:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A brief tornado occurred in the City of Rock Island, Illinois. The tornado was on the ground for 1.59 miles with a maximum width of 150 yards and a peak estimated winds of 95 MPH. The tornado knocked over and snapped large trees and produced minor damage to several roofs. Widespread damaging straight-line winds up to 90 mph also caused significant damage across the city.
Episode narrative: Severe thunderstorms occurred during the early morning hours of April 5th, as a strong cold front moved across the area and produced a line of strong to severe storms. Storms became severe as they reached the Mississippi River, producing wind gusts to 60 MPH and large hail. Ping pong ball sized hail was observed near Nora IL.

Tornado event in HENRY County, ILLINOIS
Start: 05-APR-23 03:48:00
End: 05-APR-23 03:53:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A brief tornado began just east of I-74 north of Woodhull, damaging trees, a few outbuildings, and a home in its path. A home lost some shingles and partial roof on one side of the residence. Large tree branches snapped on farmstead property. The tornado was on the ground for around 3 miles and was 50 yards wide. The tornado was rated EF0 with maximum winds around 85 mph.
Episode narrative: During the afternoon and evening of the 31st, a wave of severe thunderstorms produced numerous tornadoes, severe hail, and extensive wind damage across northwestern Indiana. A total of 23 tornadoes were confirmed across the state. The NWS Chicago office tied a record for the most tornadoes to occur in a single calendar day within the office's county warning area with 22, 5 of which occurred in Indiana. Two EF-2 tornadoes occurred in Benton County and one other in Lee County, Illinois. Some of the more notable damage includes a few homes with walls and portions of roofing blown away, a wind turbine that had been snapped in half, and wind turbine blades thrown as far as 600 yards, all a result of the two EF-2 tornadoes in Benton County.

Tornado event in LAKE County, INDIANA
Start: 31-MAR-23 19:53:00
End: 31-MAR-23 19:56:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: This tornado touched down north of U.S. Route 30 near Grant St. in Merrillville and then tracked eastward for roughly 3.3 miles before lifting over the far south side of Hobart along E 73rd Ave just east of Colorado St. The tornado blew out windows and tore sections of roofs off of multiple homes where its winds were able to compromise the residences' garage doors. The tornado also caused damage to power lines and several trees along its path.
Episode narrative: Another complex surface pattern unfolded on Friday April 28, comprising of a low pressure center, warm front, dryline, and Pacific cold front. All of these features contributed to the development of strong to severe thunderstorms as the next upper trough swept through the Plains. Storms developed shortly after noon, affected areas mainly south of I-20, and exited the region by 7 PM that evening. Large hail up to 3 inches was reported in Hamilton County, and an EF1 tornado occurred in Coryell County.

Tornado event in BELL County, TEXAS
Start: 28-APR-23 13:50:00
End: 28-APR-23 14:25:00
Direct deaths: 0
Property damage: 2.00M
Event narrative: A supercell tracked across Coryell County on the afternoon of April 28th producing an EF-1 tornado with maximum winds around 105 mph. The pattern of damage suggests this tornado may have been a multi-vortex tornado and evidence of very strong RFD wind damage was also found just south of the tornado track, further complicating the track location.

The tornado likely began near Bagget Mountain, tracked across CR 146, and did the most notable damage along CR 148. Several large trees along CR 148, in multiple locations, were damaged ranging from broken trunks to large trees uprooted. The property of a sporting range was damaged with the shooting range cover being blown across the street to the northeast. Two injuries occurred at this location, and one person was transported with a leg injury. The tornado generally followed CRs 148 and 147 on a southeast direction, continuing to damage trees and causing minor roof damage. The tornado crossed FM 116, just north of CR 145, causing  damage to trees and minor roof damage to a home east of the road.  The tornado then moved onto the property of Fort Hood. Access to this area is limited, but additional damage to trees and power poles was found along West Range Road, south of Henson Creek. The end of the tornado was estimated by radar over inaccessible areas of Fort Hood.

RFD winds were determined to be the cause of damage of a collapsed cell phone tower along West Range Road and a home on Longview Circle that lost part of its roof. The RFD winds could have been near 95 mph.
Episode narrative: The approach of an anomalously strong (for mid-June) upper-level disturbance lead to a widespread severe weather outbreak across portions of the forecast area, especially along and west of the I-35 corridor, during the afternoon into late evening of the 15th. This included the development of numerous supercell thunderstorms across the area. Despite relatively high cloud bases, strong low-level instability and sufficient low-level wind shear aided tornadic outcomes, with eleven tornadoes confirmed across western into southern Oklahoma. Numerous reports of large to very large hail, including reports of 4-inch hail in Lawton, and wind damage were received across area.

Tornado event in STEPHENS County, OKLAHOMA
Start: 15-JUN-23 16:37:00
End: 15-JUN-23 16:38:00
Direct deaths: 0
Property damage: 30.00K
Event narrative: A spotter reported observing a tornado that moved into the southwestern portion of Comanche. Trees were downed and an outbuilding damaged just southwest of Comanche, then damaged an apartment building in southwest Comanche.

Tornado event in COMANCHE County, OKLAHOMA
Start: 15-JUN-23 15:58:00
End: 15-JUN-23 16:02:00
Direct deaths: 0
Property damage: 10.00K
Event narrative: This tornado developed near State Highway 36 and Deyo Mission Road, and produced tree and shingle damage as it moved southeast. It dissipated just north of the Cotton County line.

Tornado event in COTTON County, OKLAHOMA
Start: 15-JUN-23 16:10:00
End: 15-JUN-23 16:12:00
Direct deaths: 0
Property damage: 10.00K
Event narrative: An EF0 tornado developed northwest of Walters and just east of Interstate 44. It produced barn and shingle damage as it moved east-southeast.

Tornado event in STEPHENS County, OKLAHOMA
Start: 15-JUN-23 16:11:00
End: 15-JUN-23 16:13:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: Spotters reported a tornado near 9 Mile Road in northwest Stephens County. No damage was reported and the specific tornado path is estimated.