torre126/tornado-structure-data huggingface dataset:
Episode narrative: A strong upper level trough ejected over the Southern Plains which caused rapid surface cyclogenesis to occur in southeast Texas. This surface low traversed across central and northern Louisiana. The rapid development of the surface low gave way to very high shear values, and with enough instability, a line of thunderstorms formed along its cold front. A couple of brief tornadoes occurred with the line in Pointe Coupee and Terrebonne Parishes. The Pointe Coupee Parish tornado resulted in 3 injuries. Otherwise, damaging wind gusts were noted with the line due to the extreme shear. The line exited southeast Louisiana in the early morning hours of the 25th.

Tornado event in POINTE COUPEE County, LOUISIANA
Start: 24-JAN-23 19:37:00
End: 24-JAN-23 19:40:00
Direct deaths: 0
Property damage: 113.00K
Event narrative: A brief 90MPH EF1 tornado touched down near Cutt Pointe Drive and moved northeast before lifting near Michael Lane. Three manufactured homes were damaged which were the focus of the 90 MPH EF1 rating. One was abandoned and not strapped down and was rolled. The other was also not strapped down and it flew into the third. For that one, the base was strapped down but due to the walls not being well connected to the base and the debris flying into it, the resulting rating was 90 MPH. Otherwise, shingle and siding damage and tree damage were observed. There were 3 injuries with this tornado.
Episode narrative: A strong low-pressure system which had been slowly moving east off the Rocky Mountains finally progressed into central Nebraska. This left eastern Nebraska in the warm sector as a warm front moved north into the area. The SPC issued an Enhanced Risk for severe weather with a 30% hatched for severe hail. There ended up being 19 confirmed tornadoes (3 EF2, 8 EF1, 4 EF0, 4 EFU). There were numerous hail reports the largest of which was 4.5 inches in Pawnee County. Another 4-inch report was received in Richardson County. Flash flooding was also observed in a few locations.

Tornado event in MADISON County, NEBRASKA
Start: 12-MAY-23 16:01:00
End: 12-MAY-23 16:08:00
Direct deaths: 0
Event narrative: A short-lived tornado traveled approximately 3.1 miles to the north northwest, primarily causing damage to trees. The most focused damage was in a grove of mature cottonwood trees where multiple trunks were snapped.
Episode narrative: The first significant event to produce widespread severe weather across the Mid-South for 2023 occurred on March 24, during the afternoon and evening hours.  This severe weather episode occurred mainly over portions of the Lower Mississippi and Tennessee Valleys. Surface analysis for this day depicted a quasi-stationary boundary from the Mid-Atlantic States and Ohio Valley through northern portions of West Tennessee and Arkansas and stretching back through Central Texas. Low pressure tracked along the stalled front into southeast Missouri during the evening. Meanwhile, a potent mid-level trough ejected out of the southwest U.S. Upper air analysis indicated the Lower Mississippi Valley was in the right entrance region of a strong 300 mb upper-level jet streak. This produced sufficient upper-level divergence and lift needed for severe thunderstorm development. 

Moderate instability combined with strong wind shear resulted in a QLCS (Quasi-Linear Convective System) convective mode. This northern part of the QLCS initially started over Western Arkansas Friday afternoon and moved east into Eastern Arkansas by early evening and then across West Tennessee. The northern part of QLCS produced scattered wind damage, flash flooding, and a weak tornado.  The southern end of this QLCS scraped across north Mississippi with numerous reports of flash flooding, damaging winds, and several weak tornadoes. 

The most significant storm of the night occurred during the late evening hours of March 24, as thunderstorms developing in advance of the QLCS streamed northeast Calhoun and Chickasaw Counties. A tight and small circulation developed in Chickasaw County (MS) about 5 miles east-northeast of Trebloc and quickly grew in strength as it moved into Monroe County (MS), producing significant damage from New Wren to Amory and Smithville, with the most significant damage occurring in Amory.

Tornado event in PANOLA County, MISSISSIPPI
Start: 24-MAR-23 19:25:00
End: 24-MAR-23 19:34:00
Direct deaths: 0
Property damage: 75.00K
Event narrative: The tornado developed along Three Wheeler Road in extreme southern Panola County. This tornado caused intermittent tree damage as it moved northeast across Cole Road and Crowder Pope Road. Additional tree damage was noted along Gleaton Road and Main Street on the southwest side of Pope. A structure sustained minor roof damage in this area. Numerous trees were uprooted across eastern Pope with one large tree falling on a home and causing structural damage. The tornado continued to move northeast across Green Road, causing damage to trees and an outbuilding near Interstate 55 and Hentz Road. This tornado lifted shortly after crossing the Interstate. Peak winds were estimated at 95 mph.
Episode narrative: An upper-level shortwave trough moving east through the Central Plains initiated a few clusters of thunderstorms that spread into Mississippi during the morning of June 18th. With an unstable air mass and strong jet stream over the region, these storms became severe and produced hail and damaging wind through the morning. An additional round of severe storms developed during the evening of the 18th and into the morning of the 19th. This even resulted in a rare June tornado outbreak. The previous record for number of June tornadoes in the state of Mississippi was 7 in 1974. A total of 15 tornadoes occurred across the state from June 18-19, 2023 - making this event a record in its own right. The tornado which occurred near Louin, MS was the first F3 or EF-3 rated tornado in the state since 1957.

Tornado event in SMITH County, MISSISSIPPI
Start: 18-JUN-23 21:23:00
End: 18-JUN-23 21:24:00
Direct deaths: 0
Property damage: 2.00K
Event narrative: An EF-0 tornado touched down along National Forest Road 521-A where it damaged several trees as it moved north into the woods. It quickly dissipated before meeting the loop of the road to the north. Estimated maximum wind speeds were 80 mph.
Episode narrative: A strong, occluding storm system over the Upper Midwest produced a deep column of strong southwesterly winds over the Midwest on the afternoon and evening of the 31st. This pattern generated an inordinate amount of vertical wind shear.  The overall southwesterly flow also brought rather mild and somewhat humid air into the region, which was adequately unstable given noticeably colder air aloft, especially over the southwestern quadrant of Indiana.

Resulting thunderstorms were able to mix down the stronger winds to the surface as damaging straight line gusts, while a rather low freezing level promoted isolated large hail.  Ten tornadoes occurred across the region:  5 from a rotating supercell thunderstorm that tracked roughly parallel to and about 20 miles south of Interstate 70, and 5 others spawned from a squall line's northern book-end vortex that impacted north-central central Indiana.  The supercell's first two tornadoes (both EF3) caused a combined 5 fatalities...before the supercell spawned two more strong tornadoes (EF2/EF3), with the cell's final EF3 inflicting major damage on a warehouse in Whiteland (Johnson Co.).  The (northern) squall line's first tornado was an EF2 that impacted mostly rural areas...while the squall line's four following tornadoes were all weak (EF0/EF1), with the final three spawned over Howard County, concluding with a longer tracking EF1 that injured one person.

Tornado event in BOONE County, INDIANA
Start: 31-MAR-23 21:44:00
End: 31-MAR-23 21:45:00
Direct deaths: 0
Property damage: 120.00K
Event narrative: Continuation from Montgomery County of the secondary, EF0 tornado (that tracked just southeast of the nearby, multi-county EF2 tornado).  A barn just west of the Montgomery-Boone county line was partially destroyed by 85 mph winds, with debris blown into Boone County and one-quarter mile to the northeast.  The tornado also downed utility poles along the county line road before causing tree damage and shifting an older barn from its foundation.
Episode narrative: During the afternoon hours, a strong supercell developed over Logan and Washington Counties. As the storm moved southeast near the community of Hyde, Colorado, it produced a EF-3 tornado that continued into Yuma County. The tornado reached it's peak intensity while just southwest of the city of Yuma with significant damage to a residence and two metal buildings. The supercell continued to move south then southeast across Yuma County to produce a total of seven tornadoes, with one EF-2 tornado moving into far north Kit Carson County. The other tornadoes were ranked EF-U with another north of Abarr ranked an EF-0. The storm also produced thunderstorm wind gusts up to 100 mph with damage to trees and power poles. Large hail was another hazard produced with 1 to 5.25 inch hail reported across Yuma County. The 5.25 inch hailstone fell near Kirk, Colorado, and set a new hail size record for the state of Colorado.  After crossing into Kit Carson County the thunderstorm turned east, producing more severe weather in Sherman County Kansas.

Tornado event in YUMA County, COLORADO
Start: 08-AUG-23 18:25:00
End: 08-AUG-23 18:40:00
Direct deaths: 0
Property damage: 30.00K
Event narrative: Based on damage to power poles the tornado tracked south than east along CR 2. The tornado damaged half an irrigation pivot and snapped nine power poles along CR 2. Then it shifted south again before reaching the CR2/ CR Y intersection. Based on radar data the tornado continued south-southeast into Kit Carson County, ending northwest of the CR MM/CR 44 intersection.
Episode narrative: An upper-level shortwave trough moving east through the Central Plains initiated a few clusters of thunderstorms that spread into Mississippi during the morning of June 18th. With an unstable air mass and strong jet stream over the region, these storms became severe and produced hail and damaging wind through the morning. An additional round of severe storms developed during the evening of the 18th and into the morning of the 19th. This even resulted in a rare June tornado outbreak. The previous record for number of June tornadoes in the state of Mississippi was 7 in 1974. A total of 15 tornadoes occurred across the state from June 18-19, 2023 - making this event a record in its own right. The tornado which occurred near Louin, MS was the first F3 or EF-3 rated tornado in the state since 1957.

Tornado event in MADISON County, MISSISSIPPI
Start: 18-JUN-23 18:57:00
End: 18-JUN-23 18:59:00
Direct deaths: 0
Property damage: 500.00K
Event narrative: An EF-1 tornado developed just east of Sunnybrook Road between W. Porter Street and W. Jackson St. and then moved east-northeast through the downtown Ridgeland area. Along its path, multiple trees were damaged. The historic Wesley Chapel on West Porter Street, which was moved from Old Canton Road to its current location in the 1900s, was destroyed when it was blown off its foundation blocks. The tornado crossed Maple St., Central Avenue, and Washington St. A home along N. Wheatley St. had shingle damage. The tornado continued east across NE Madison Dr. and US Highway 51 where a business sustained shingle and tin damage. The tornado ended near the intersection of Beaver Creek Drive and Willow Dr. where a power pole was blown down, fences were damaged, and some minor roof damage occurred. The estimated maximum winds were 90 mph.
Episode narrative: A strong, occluding storm system over the Upper Midwest produced a deep column of strong southwesterly winds over the Midwest on the afternoon and evening of the 31st. This pattern generated an inordinate amount of vertical wind shear.  The overall southwesterly flow also brought rather mild and somewhat humid air into the region, which was adequately unstable given noticeably colder air aloft, especially over the southwestern quadrant of Indiana.

Resulting thunderstorms were able to mix down the stronger winds to the surface as damaging straight line gusts, while a rather low freezing level promoted isolated large hail.  Ten tornadoes occurred across the region:  5 from a rotating supercell thunderstorm that tracked roughly parallel to and about 20 miles south of Interstate 70, and 5 others spawned from a squall line's northern book-end vortex that impacted north-central central Indiana.  The supercell's first two tornadoes (both EF3) caused a combined 5 fatalities...before the supercell spawned two more strong tornadoes (EF2/EF3), with the cell's final EF3 inflicting major damage on a warehouse in Whiteland (Johnson Co.).  The (northern) squall line's first tornado was an EF2 that impacted mostly rural areas...while the squall line's four following tornadoes were all weak (EF0/EF1), with the final three spawned over Howard County, concluding with a longer tracking EF1 that injured one person.

Tornado event in HOWARD County, INDIANA
Start: 31-MAR-23 22:20:00
End: 31-MAR-23 22:27:00
Direct deaths: 0
Property damage: 900.00K
Event narrative: This was the third tornado (and only EF1) to impact Howard County. The tornado began in a rural field south of a homestead with two barns, home, and mobile home.  One small barn was completely destroyed along with the mobile home which caused a serious injury.  The home and larger barn had lesser damage. This tornado continued to the northeast, damaging the trees, homes and barns of several homesteads, with maximum winds of 110 mph. The tornado continued into a larger neighborhood near US Highway 35 where it caused mainly roof and tree damage to tree rows.
Episode narrative: During the afternoon hours, a strong supercell developed over Logan and Washington Counties. As the storm moved southeast near the community of Hyde, Colorado, it produced a EF-3 tornado that continued into Yuma County. The tornado reached it's peak intensity while just southwest of the city of Yuma with significant damage to a residence and two metal buildings. The supercell continued to move south then southeast across Yuma County to produce a total of seven tornadoes, with one EF-2 tornado moving into far north Kit Carson County. The other tornadoes were ranked EF-U with another north of Abarr ranked an EF-0. The storm also produced thunderstorm wind gusts up to 100 mph with damage to trees and power poles. Large hail was another hazard produced with 1 to 5.25 inch hail reported across Yuma County. The 5.25 inch hailstone fell near Kirk, Colorado, and set a new hail size record for the state of Colorado.  After crossing into Kit Carson County the thunderstorm turned east, producing more severe weather in Sherman County Kansas.

Tornado event in YUMA County, COLORADO
Start: 08-AUG-23 15:57:00
End: 08-AUG-23 16:25:00
Direct deaths: 0
Property damage: 1.00M
Event narrative: The tornado began in far eastern Washington County near the town of Hyde and moved east-southeast into northwest Yuma County. In Yuma County, the tornado remained southwest of the city of Yuma, where it looped around three times along the path causing damage to irrigation pivots, trees, and numerous power poles. The tornado dissipated during a fourth large loop. There was also significant damage to a residential property, three grain bins, and a machine shed towards the end of the path. Image of the actual tornado path is attached.
Episode narrative: During the early evening hours of the 17th, a discrete supercell formed over the central TX Panhandle and moved towards the northeastern TX Panhandle. At the same time a complex of storms was entering the western OK Panhandle and moved east across the area and expanded southward towards the eastern combined Panhandles.  These storms produced hail up to 3 in diameter and wind gusts upwards of 70-80 mph with some minor wind damage. Some of the largest hail sizes and strongest winds occurred with the grunt of the complex across the OK Panhandle.

Tornado event in BEAVER County, OKLAHOMA
Start: 17-JUN-23 18:42:00
End: 17-JUN-23 18:43:00
Direct deaths: 0
Property damage: 2.00K
Event narrative: This tornado developed just inside the Beaver-Harper county line. It caused some roof damage and tree damage to a home before crossing into Harper County.
Episode narrative: A compact weather system moved through the region on Thursday May 11th and brought a round of severe storms during the late morning and afternoon hours. Most of the events were damaging winds but there were a few instances of hail and one tornado in SE Arkansas.

Tornado event in ASHLEY County, ARKANSAS
Start: 11-MAY-23 11:41:00
End: 11-MAY-23 11:43:00
Direct deaths: 0
Property damage: 40.00K
Event narrative: A tornado touched down east of Crossett and south of Hamburg near Highway 425, where it snapped and scattered tree limbs across the property of a community church. The tornado continued along Highway 425 as it uprooted hardwood and softwood trees along the forest line. It then damaged the roof of a house along Highway 425, where it also snapped the trunk of a softwood tree and uprooted several trees in the yard of the residence. The tornado continued northeast, crossing Highway 425, where it struck another residence. A wooden car port was blown across the yard, along with a portion of the roof being damaged on the house. Several large, hardwood trees were uprooted on the far northeastern edge of the property. The tornado weakened and lifted shortly after crossing Ashley County Road 97, where small limbs were scattered across the road. Estimated peak wind speeds were 107 mph.
Episode narrative: A potent weather system developed and tracked across the Lower Mississippi River Valley during the evening of November 20. This system and associated convective activity resulted storms that produced hail, wind damage, and several tornadoes.

Tornado event in FRANKLIN County, MISSISSIPPI
Start: 20-NOV-23 21:22:00
End: 20-NOV-23 21:26:00
Direct deaths: 0
Property damage: 50.00K
Event narrative: This tornado began west of Allen Road between Freeman Road and Bowlin Road near the Smithdale community. As it crossed Freeman Road, a sizable portion of the roof of a brick home was removed and blown away from the property. A survey of the home including portions of the roof and rafters indicated a potential weakness of the wood. In addition, a covered porch area that shared a gabled roof with the home likely acted as a lever in lifting the roof from the home. For these reasons, the tornado damage at the site was rated slightly below the expected value for the degree of damage. The tornado then paralleled Allen Road for a short distance, snapping several pine trees, destroying two sheds, and damaging the roof of another house before lifting near the Jordan Lane intersection.
Episode narrative: During the late afternoon and evening hours of August 7th, a frontal boundary moved across Northwestern Kansas allowing for showers and thunderstorms to develop within the region. Some of these thunderstorms became severe and produced large hail up to softballs in size, a brief landspout, damaging wind gusts up to an estimated 70 mph, and heavy rainfall leading to flash flooding. Winds from the storms also caused a brief dust storm. Flooding in at least one location continued overnight until sunrise of August 8th.

Tornado event in CHEYENNE County, KANSAS
Start: 07-AUG-23 15:35:00
End: 07-AUG-23 15:36:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: Storm chaser video caught a brief landspout tornado forming along the cold front/outflow boundary west of Bird City just east of CR 26 roughly a half mile north of Highway 36.  The boundary was moving quickly to the south, so the landspout did not last long since it was not reported to be crossing the highway.  The landspout formed in a field, so no damage occurred.
Episode narrative: A regional tornado outbreak occurred during the late afternoon of Friday, March 31, 2023, and continued into the early morning hours of Saturday, April 1, 2023. This outbreak covered portions of the Ohio Valley, and the Middle and Lower Mississippi Valleys, including a good portion of the Mid-South and stretching into the Tennessee Valley. On Friday, March 31, a surface low was located near La Crosse, WI, with a cold front stretching south into central/southwest Missouri, western Arkansas, and into eastern Texas. Surface temperatures were mainly in the 70s to approaching 80 degrees with surface dewpoints in the lower to middle 60s, yielding Surface-Based CAPE (SBCAPE) values between 1500-2000 J/kg by Friday evening. Favorable upper-level divergence produced by the right entrance region of a 140-kt jet streak at 300 mb provided ample lift to produce strong to severe thunderstorms across the region. Directional and speed shear were impressive with 70-80 knots of Effective Bulk Shear present and 0-1 km Storm Relative Helicity values between 500-600 m2/s2, all more than enough for organized thunderstorms across the area. Discrete supercells started to develop across the Lower Mississippi Valley during the afternoon hours on March 31, 2023, eventually tracking into the Mid-South by late afternoon. The first supercell that developed in the Mid-South produced an EF-3 that caused major damage in Wynne, Arkansas. Tornadic supercells continued to produce significant tornado damage across the Mid-South into the early morning hours of April 1, 2023. The hardest hit areas besides Wynne, Arkansas included Covington, Tennessee, and McNairy County, Tennessee. Overall, 14 tornadoes occurred across the Mid-South along with several reports of wind damage and measured damaging wind speeds. Eighteen people in the Mid-South lost their lives in this outbreak.

Tornado event in HARDIN County, TENNESSEE
Start: 31-MAR-23 20:48:00
End: 31-MAR-23 20:51:00
Direct deaths: 0
Property damage: 150.00K
Event narrative: This tornado moved into Hardin County from McNairy County. The tornado caused EF-2 damage at the Morris Chapel Methodist Church, with significant roof damage and the collapse of an exterior wall. The tornado dissipated in a field just south of White Oak Creek Canal a few miles to the northeast around 9:51 PM CDT.  Peak winds in Hardin County from this tornado were estimated at 115 mph.