torre126/tornado-structure-data huggingface dataset:
Episode narrative: During the afternoon and evening of June 15th, an upper-level disturbance triggered a cluster of thunderstorms along a stationary front boundary around the Texas and Oklahoma border. These storms intensified and grew upscale into an intense mesoscale convective system (MCS) as they moved east-southeast along an axis of increased moisture and strong instability that extended toward the Central Gulf Coast. As the MCS moved into western Mississippi with a bow and arrow structure, it exhibited an unusually intense rear-inflow jet with velocities as high as 80 to 100 mph descending to around 1,000 feet above the ground, as viewed by the KDGX NEXRAD site. A wide swath of significant severe wind gusts at the surface caused widespread wind damage including snapped and uprooted trees, downed tree limbs and power lines, and damage to homes and other structures. Surveys of the wind damage indicated that peak wind gusts of 90 to 100 mph likely occurred in the most intense portions of the line. Over 240,000 power outages resulted in portions of the area and many continued for several days following these and other storms that occurred during the middle of June. Two embedded EF-1 tornadoes occurred with the squall line.  There was one fatality in Madison County due to the straight line winds, and several other injuries were due to fallen trees across the state. Later in the evening, additional severe thunderstorms produced hail up to the size of grapefruits and caused scattered wind damage.

Tornado event in HINDS County, MISSISSIPPI
Start: 16-JUN-23 03:54:00
End: 16-JUN-23 04:02:00
Direct deaths: 0
Property damage: 25.00K
Event narrative: An EF-1 tornado began just east of Utica and moved roughly parallel to MS Highway 27 to near Bear Creek Road. Along its path numerous trees were snapped and uprooted, and several utility poles and lines were blown down. Tree damage exhibited a convergent pattern at multiple locations along the track. Of interest, radar velocity data suggest this tornado may have been anticyclonic. Estimated maximum wind speeds were 100 mph. A tornadic debris signature was observed on radar with this tornado.
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 SCOTT County, MISSISSIPPI
Start: 18-JUN-23 19:04:00
End: 18-JUN-23 19:18:00
Direct deaths: 0
Property damage: 10.00K
Event narrative: An EF-1 tornado touched down along Road 508-N and snapped trees as it moved northeast. The tornado moved across Clifton-Hillsboro Road, Harrell Rd., and Clifton Rd. before it finally dissipated near Hillsboro-Ludlow Rd. and Harperville Rd. The maximum estimated winds were 105 mph. A tornadic debris signature was observed on radar with this tornado.
Episode narrative: Numerous supercell thunderstorms moved across parts of Logan, Morgan, Phillips, Weld and Washington counties during the evening and overnight, dropping baseball size hail or larger on several communities. Towns that received very large hail (baseball size or larger) included:  Akron, Iliff, Brush, Fort Morgan, Haxtun, Fleming, and Otis.  In addition to the large hail, an 82 mph wind gust was reported 6 SE of Holyoke and 81 mph wind gust was measured 8 S of Holyoke.  One large tree was downed by the wind.  Numerous reports of broken windows to homes along with extensive car damage.  Two tornadoes briefly touched down, but no damage was observed.

Tornado event in LOGAN County, COLORADO
Start: 28-JUN-23 20:13:00
End: 28-JUN-23 20:13:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A tornado touched down briefly in open country.  No damage was observed.
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 KIT CARSON County, COLORADO
Start: 08-AUG-23 18:40:00
End: 08-AUG-23 18:47:00
Direct deaths: 0
Event narrative: Based on damage to power poles the tornado tracked south then 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. No damage was observed in Kit Carson County.
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 BURT County, NEBRASKA
Start: 12-MAY-23 17:14:00
End: 12-MAY-23 17:16:00
Direct deaths: 0
Event narrative: Storm spotters reported a tornado just to the east of the much larger main tornado. This anti-cyclonic satellite tornado appears to have caused damage to center pivot irrigation systems and power lines as it traveled north for approximately one mile.

Tornado event in BURT County, NEBRASKA
Start: 12-MAY-23 17:20:00
End: 12-MAY-23 17:44:00
Direct deaths: 0
Event narrative: This tornado started around 620 PM near Burt County Road H, a little over 2 miles west of US Highway 77. The tornado started moving north northeast and then curved back to due north. As it moved north it gained strength and started destroying outbuildings and trees at various farmsteads, reaching EF-2 strength. By the time the tornado reached Burt County Road K, it became nearly 5/8 of a mile wide. Nearly a half mile span of double-wide wooden electrical transmission poles were snapped north of County Road L. The tornado, which was wrapped in rain, continued trekking to the north, damaging farmstead after farmstead, as well as uprooting and snapping trees. The tornado eventually weakened at 644 PM, 3 miles west of Lyons. Two people were injured by the tornado. One had a tree fall on a shed with the person inside, injuring his head. The other had cuts to the face from flying glass.

Tornado event in STANTON County, NEBRASKA
Start: 12-MAY-23 16:34:00
End: 12-MAY-23 16:38:00
Direct deaths: 0
Event narrative: A tornado tracked north northwest for approximately 2.8 miles across part of Stanton County. Most of the track occurred in difficult to access areas but the assessment revealed that this was most likely caused by a tornado. The most intense damage was near Highway 275 where several trees were uprooted, a few were snapped, and there was minor roof damage to a home. A shed was also damaged along the track.
Episode narrative: A severe weather episode with an area of low pressure and associated cold front moving east across the Gulf of Mexico approaching the peninsula produced multiple supercell thunderstorms and likely waterspouts over the open waters before approaching the west Florida coast, where one waterspout was observed and multiple strong wind gusts were reported.

Tornado event in SARASOTA County, FLORIDA
Start: 11-OCT-23 21:59:00
End: 11-OCT-23 22:00:00
Direct deaths: 0
Property damage: 10.00K
Event narrative: A supercell that developed over the Gulf of Mexico and likely produced a waterspout while offshore moved ashore just after 9:30 PM EST (0230Z) between Venice and Osprey. Radar-indicated rotation weakened about 10 to 15 minutes after the storm moved ashore around 9:45 PM EST (0245Z), just after it crossed Interstate 75 east of Osprey. The storm again exhibited increasing organization and rotation just after 9:50 PM EST (0250Z) as it approached SR 72/Clark Rd while continuing north-northeast, and produced a brief EF-0 tornado just before 10:00 PM EST (0300Z) that affected a neighborhood just north of SR 72/Clark Rd on the east side of Sarasota. A metal pool cage/lanai was collapsed at one home, while a small trailer was moved several feet outside of another home. The circulation weakened shortly thereafter as the storm continued across northern Sarasota County.

Tornado event in PINELLAS County, FLORIDA
Start: 11-OCT-23 23:13:00
End: 11-OCT-23 23:15:00
Direct deaths: 0
Property damage: 50.00K
Event narrative: A developing supercell moved ashore near Madeira Beach in southern Pinellas County around 10:30 PM EST (0330Z) and continued north-northeast across the communities of Seminole and Highpoint over the next 30 minutes, passing just west of St Pete Clearwater Int'l Airport (PIE). Radar indicated increasing organization and rotation around midnight as it passed over the Courtney Campbell Causeway while approaching Safety Harbor, and organization continued to increase over the next 15 minutes before the storm produced an EF-0 tornado while crossing the northern shore of Safety Harbor into Oldsmar around 11:15 PM EST (0415Z), where a significant part of the roof was removed from a two-story home along Shore Drive facing south toward the shoreline located across the street. Video recorded by a local resident from just east of the tornado track showed power flashes as the storm moved across the area, consistent with the time of the most apparent rotation per radar, while the aforementioned house receiving roof damage was located along the eastern edge of the circulation as the storm moved north-northeast. Intermittent damage continued along the track north-northeast over the next quarter-mile or so before the circulation weakened, including roof damage reported to a few additional homes, and damage to large trees continuing northward to around Oldsmar Elementary school near SR 580/State St.
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 DODGE County, NEBRASKA
Start: 12-MAY-23 16:42:00
End: 12-MAY-23 16:44:00
Direct deaths: 0
Event narrative: A tornado damaged a roof on a hog barn, overturned several center pivots, and damaged outbuildings and a block building at a farmstead as it moved northeast. This tornado likely dissipated before the storm continued on to produce additional tornadoes.
Episode narrative: An intense, long-lived supercell initially developed near the town of Chugwater over the higher terrain of the central Laramie Range around 3:00 PM on 6/23, tracking to the east-southeast across southern Platte and Goshen Counties through approximately 7:00 PM. A small, terrain-driven area of low pressure and resultant cyclonic flow resulted in moisture pooling and backed, easterly near-surface flow near the track of the storm which resulted in a favorable environment for tornadoes. The cyclic supercell produced 5 separate confirmed tornadoes, most notably including an EF-2 tornado which developed near the town of Hawk Springs. A swath of large hail up to two inches in diameter also occurred with this storm. A separate storm over far northwestern Converse County also produced a brief tornado that afternoon. A second round of strong to severe thunderstorms impacted Platte and Goshen Counties later in the day.

Tornado event in CONVERSE County, WYOMING
Start: 23-JUN-23 15:33:00
End: 23-JUN-23 15:33:00
Direct deaths: 0
Event narrative: The public reported a tornado near the Converse and Natrona County line approximately 33 miles WNW of Bill.
Episode narrative: Surface low pressure system tracked across the North Dakota/South Dakota border creating an environment supporting the threat for low top supercells in Southeastern North Dakota into adjacent West Central Minnesota. Several low-top supercells developed and tracked along portions of the Minnesota Red River Valley. Portions of Norman, Polk, Becker, and Mahnomen counties saw multiple tornadoes. Large hail and damaging winds accompanied some of these storms, and flash flooding in some locations as well.

Tornado event in POLK County, MINNESOTA
Start: 24-JUN-23 15:14:00
End: 24-JUN-23 15:15:00
Direct deaths: 0
Event narrative: This is a tornado that continued into Polk county from Norman Co. It moved into an open fields, which mitigated any damage and quickly diminished. Therefore, the rating of EF-U has been assigned with an estimated path width and length.
Episode narrative: Clusters of strong thunderstorms over southeast Missouri and northwest Tennessee merged into a complex of severe thunderstorms over southwest Kentucky. Widespread damaging winds and a couple of isolated tornadoes accompanied the storms along the Tennessee border from Fulton and Hickman Counties eastward into south Graves County. Rainfall amounts ranging from 1 to 3 inches occurred across portions of western Kentucky. This included Fulton, Hickman, Graves, and Calloway counties. Much of this rain fell within 30 minutes to 1 hour. The storms weakened as they moved east across the Murray area, where heavy rain and street flooding was the main impact. The storms fed on a southwest wind flow of strongly unstable air. The most unstable air was slightly elevated, characterized by most-unstable layer capes around 2500 j/kg. Rather strong westerly mid-level winds around 40 knots provided sufficient vertical shear for this organized severe weather episode. The storms occurred ahead of a cold front that trailed southwest across the Ozarks from a low pressure center over the Great Lakes region. A subtle 500 mb shortwave in the west-northwest flow aloft aided the storms.

Tornado event in FULTON County, KENTUCKY
Start: 12-AUG-23 07:56:00
End: 12-AUG-23 07:58:00
Direct deaths: 0
Property damage: 60.00K
Event narrative: This EF-1 tornado began near the center of Hickman, in the Terrace Drive and Sunset Street area. Damage to trees and power lines occurred in this neighborhood. This tornado tracked to the east-southeast, with more tree damage on Bayou Street and Johnson Lane. A large tree fell onto a home on Myron Cory Drive. The tornado crossed Kentucky 125 and proceeded to 7th Street, where the most significant cluster of damage occurred with several trees uprooted, portions of a few trees snapped, and power line damage. One of the trees fell onto a car. The storm was at its peak width around Kentucky 125 and 7th Street. Additional damage to trees occurred on Nelson Street and Harrison Street. The damage path ended at this point, with the tornado lifting after moving into open areas east of Nelson Street. Peak winds were estimated near 105 mph.
Episode narrative: Severe thunderstorms produced damaging wind and hail over parts of Douglas, Elbert, Lincoln, Logan and Washington counties.  The largest hail occurred in Logan and Washington counties, where it ranged from from 2 1/2 to 4 inches in diameter.  In addition, two tornadoes briefly touched down in Washington County; one produced EF1 damage.  The tornado lifted a garage off its foundation anchoring, and shifted it. The garage door also imploded and caused some roof damage. Other damage on the farm included snapped trees and broken wood power poles. Some lesser damage was observed to some outbuildings.  Lastly, straight-line winds damaged the shingles of a manufactured home and flipped a small barn.

Tornado event in WASHINGTON County, COLORADO
Start: 08-AUG-23 15:39:00
End: 08-AUG-23 15:57:00
Direct deaths: 0
Event narrative: A tornado touched down in an open field just southeast of Otis and continued to move east-southeast throughout eastern Washington County. As it approached County Road ZZ it lifted a garage off its foundation anchoring, and shifted it.  The garage door also imploded and about 10% of roof structure was lost. Other damage included snapped trees and broken wood power poles, with lesser damage to outbuildings. The tornado continued to track east-southeast into Yuma County.
Episode narrative: A severe weather episode with an area of low pressure and associated cold front moving east across the Gulf of Mexico approaching the peninsula produced multiple supercell thunderstorms and likely waterspouts over the open waters before approaching the west Florida coast, where one waterspout was observed and multiple strong wind gusts were reported.

Tornado event in PINELLAS County, FLORIDA
Start: 12-OCT-23 00:47:00
End: 12-OCT-23 00:55:00
Direct deaths: 0
Property damage: 500.00K
Event narrative: Tornadic waterspout came ashore, becoming a tornado near northern Clearwater Beach and continued across the Dunedin Channel before again coming ashore near Dunedin, near the intersection of the Dunedin Causeway and Hwy 19. Multiple homes in Clearwater Beach and Dunedin suffered at least minor roof damage, with a multi-story condominium building in Dunedin losing over a third of its roof along with part of the side wall, which was tossed about 500 yards away. A nearby strip mall also experienced partial roof loss and ensuing water damage, with a few damaged or destroyed concrete poles in its parking lot. Additionally, at least 3 other homes received mainly roof damage before the tornado dissipated just east of U.S. Hwy 19.

Tornado event in CITRUS County, FLORIDA
Start: 12-OCT-23 01:08:00
End: 12-OCT-23 01:19:00
Direct deaths: 0
Property damage: 350.00K
Event narrative: Likely began as a tornadic waterspout that moved ashore, then tracked northeast near the Paradise Point community south of Crystal River before continuing across U.S. Hwy 19 and FL Hwy 44 into eastern parts of Crystal River before lifting northeast of the city shortly thereafter. Several hardwood trees were downed near the Plantation Golf Resort and Spa before more significant damage occurred as the tornado approached and crossed U.S. Hwy 19, with multiple homes receiving roof damage, including one with exterior walls collapsed. A warehouse along U.S. Hwy 19 also had part of its roof removed. Additional minor roof damage observed as the tornado continued northeast and across FL Hwy 44 before dissipating, along with downed electrical transmission lines.

Tornado event in PASCO County, FLORIDA
Start: 12-OCT-23 01:17:00
End: 12-OCT-23 01:18:00
Direct deaths: 0
Property damage: 2.00K
Event narrative: A tornado-warned storm produced a very brief tornado touchdown around 1:17 AM EST (0617Z) that was captured on the doorbell camera of a home between Trinity and Odessa. Bent fence damage was observed across a pond from the street where the initial video was taken, suggesting that a very short-lived tornado occurred.
Episode narrative: A weak surface boundary was draped across the region on August 26. Thunderstorms developed and sagged south along the boundary during the early afternoon, and two brief landspout tornadoes were observed in Fulton County. Neither landspout produced any damage, and thus both were rated EF-Unknown.

Tornado event in FULTON County, ILLINOIS
Start: 26-AUG-23 13:40:00
End: 26-AUG-23 13:45:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A brief landspout tornado was observed near County Road 34 and Belville Road in rural Fulton County. No damage was observed, so an intensity rating could not be assigned.

Tornado event in FULTON County, ILLINOIS
Start: 26-AUG-23 13:30:00
End: 26-AUG-23 13:35:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: The emergency manager observed a brief landspout tornado two miles south of Marietta.
Episode narrative: Clusters of strong thunderstorms over southeast Missouri and northwest Tennessee merged into a complex of severe thunderstorms over southwest Kentucky. Widespread damaging winds and a couple of isolated tornadoes accompanied the storms along the Tennessee border from Fulton and Hickman Counties eastward into south Graves County. Rainfall amounts ranging from 1 to 3 inches occurred across portions of western Kentucky. This included Fulton, Hickman, Graves, and Calloway counties. Much of this rain fell within 30 minutes to 1 hour. The storms weakened as they moved east across the Murray area, where heavy rain and street flooding was the main impact. The storms fed on a southwest wind flow of strongly unstable air. The most unstable air was slightly elevated, characterized by most-unstable layer capes around 2500 j/kg. Rather strong westerly mid-level winds around 40 knots provided sufficient vertical shear for this organized severe weather episode. The storms occurred ahead of a cold front that trailed southwest across the Ozarks from a low pressure center over the Great Lakes region. A subtle 500 mb shortwave in the west-northwest flow aloft aided the storms.

Tornado event in HICKMAN County, KENTUCKY
Start: 12-AUG-23 08:13:00
End: 12-AUG-23 08:16:00
Direct deaths: 0
Property damage: 100.00K
Event narrative: This EF-1 tornado began with a cluster of damage along Kentucky 307 just south of Johnson Rd, including on Bizzle Road and Laine Road. Around two dozen trees were blown down, and a grain bin was destroyed on Laine Road. This was the strongest and widest portion of the tornado track. The tornado proceeded northeastward, with damage to a portion of a tree line south of Johnson Road. Large branches and smaller limbs were found on Rushton Road and Kentucky 1529. A tree fell on a house along Highway 1529. A large section of a tree fell onto a home on Wilson Road. The tornado appeared to have lifted shortly after crossing Wilson Road. Peak winds were estimated near 105 mph.
Episode narrative: A surface low moved from the southwest to the northeast across the state initiating a line of severe weather in northeast Nebraska. Reports were received for wind speeds between 60 and 80mph with the strongest measured report being 82mph in Fairbury. There was an EF1 rated tornado near Pilger with estimated peak wind speeds of 100 mph.

Tornado event in STANTON County, NEBRASKA
Start: 03-OCT-23 18:39:00
End: 03-OCT-23 18:41:00
Direct deaths: 0
Event narrative: A tornado began southeast of the intersection of 834 Road and 574 Avenues. It continues northeast, damaging several trees and outbuildings at a farm. The tornado left a sporadic path in crops, crossed 834 Road, and ended prior to crossing 575 Avenue.