torre126/tornado-structure-data huggingface dataset:
Episode narrative: During the evening of July 12, scattered thunderstorms dropped 13 tornadoes across far northeast Illinois, primarily within the west of northwest suburbs of Chicago. Of these 13 tornadoes, three were determined to be EF-1 with the remaining 10 being EF-0.

Tornado event in KENDALL County, ILLINOIS
Start: 12-JUL-23 16:36:00
End: 12-JUL-23 16:44:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: An EF-0 tornado impacted northeastern Oswego and southeastern Aurora. Damage along the tornado's path was characterized primarily by downed trees and tree limbs, as well as a few instances of exterior damage to homes.

Tornado event in COOK County, ILLINOIS
Start: 12-JUL-23 17:43:00
End: 12-JUL-23 17:45:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A brief, weak EF-0 tornado touched down near Jane Addams Junior High School in Schaumburg and tracked east for a little over a mile before lifting as it approached Salem Dr. This tornado produced sporadic and mostly minor tree damage along its track.

Tornado event in DU PAGE County, ILLINOIS
Start: 12-JUL-23 17:44:00
End: 12-JUL-23 17:50:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: An EF-0 tornado dropped at Glenbard North High School in Carol Stream and ended just east of Americana Park in Glendale Heights. This tornado primarily caused tree damage along its 2.9 mile long path, but a couple of warehouses sustained minor roofing damage, and a few houses were damaged as well losing small portions of their siding and roofs.
Episode narrative: Broad troughing was present aloft across the Western US during the afternoon/evening of the 19th. An area of surface low-pressure slowly deepened and moved towards north-central Kansas, with dryline extending from central Kansas through western-north Texas by the late afternoon hours. A well-timed lead upper wave, combined with broken insolation, led to the development of a few supercell thunderstorms across central Oklahoma. Multiple instances of large to very large (>2 inches) hail, along with 18 tornadoes, occurred across central Oklahoma.

Tornado event in MCCLAIN County, OKLAHOMA
Start: 19-APR-23 18:23:00
End: 19-APR-23 18:26:00
Direct deaths: 0
Property damage: 20.00K
Event narrative: The second tornado of the outbreak moved into McClain County from Grady County along County Road near Sunny Side Road. it moved east along Sunny Side road causing tree damage and roof damage to at least one home before turning southeast and then south-southeast and damaging another home roof and destroying a carport as it crossed State Highway 76.
Episode narrative: With steep near surface lapse rates and a diffuse boundary across southwest Minnesota, a quick spin-up developed during the updraft phase of a thunderstorm which resulted in a brief landspout.

Tornado event in COTTONWOOD County, MINNESOTA
Start: 09-MAY-23 12:42:00
End: 09-MAY-23 12:46:00
Direct deaths: 0
Event narrative: A landspout quickly spun up around 2 miles northwest of Windom in an open field just north of the Windom Country Club.  The weak tornado moved just east of north and crossed 405th Street, where it glanced a farmstead and caused damage to shingles on an outbuilding. The tornado continued about a half mile across open fields before turning more northerly, and crossed 395th Street before lifting less than a quarter mile farther to the north. The maximum wind speed was 65 mph and the average path width was 20 yards.
Episode narrative: A line of thunderstorms moved through Eastern NC during the early afternoon hours. Many instances of wind damage occurred with these storms, A brief embedded EF-1 tornado occurred in Kinston.

Tornado event in LENOIR County, NORTH CAROLINA
Start: 22-JUN-23 12:04:00
End: 22-JUN-23 12:05:00
Direct deaths: 0
Event narrative: The damage path started along Plaza Boulevard at the Furniture Fair where at least 6 large windows were bowed in or blown out. One large AC unit on top of this store was blown off and toward the parking lot  behind the store. The damage path continued across Boy Scout Boulevard  where a wood power pole was snapped in half, about 6 feet off the  ground. From the store, through the wood power pole, damage in this area was consistent with estimated winds of between 90 and 100 MPH, peaking  around 100 MPH near the location of the power pole. 

The damage continued across Boy Scout Boulevard, where extensive damage occurred at the Salvation Army store. Almost the entire length of the  eastern side of the building had the wall bowed out due to the strong  winds. A dumpster, which was located across the street at the Post  Office, was blown around 100 yards to this location. Behind the store,  prior to the neighborhood on Darby Avenue, two large, healthy, pine  trees were snapped in half, about 25 feet up from the ground. Winds in  this area were estimated to be between 90 and 100 MPH. 

A narrow, concentrated path continued northeast across Darby Avenue.  While most of the damage here continued to be blown toward the  northeast or around 45 degrees, some damage to houses along Darby Avenue pointed back toward the southwest or 220 degrees, opposite of the storm path. Debris and damage along the path were indicative of rotation. 

Sporadic damage continued across Adkin Branch, through UNC Health Care Lenoir.  The tornado may have weakened some here as it crossed the branch  (creek), with winds estimated to be closer to 80 MPH. The damage path  crossed Airport Road, damaging a sign at the entrance to the hospital,  and then finally causing damage to large sections of the roof at a  medical building across the street. The roof was of higher quality, with winds here estimated again between 85 and 95 MPH, or consistent with a  EF-1 tornado. More sporadic damage was found before the path ended near  the intersection of North Herritage Street and North Queen Street.

We would like to thank Lenoir County Emergency Services for their help in conducting the survey today.
Episode narrative: Two rounds of strong to severe thunderstorms spawned 13 tornadoes across central Illinois during the afternoon and evening of March 31st...including an EF-3 tornado that killed 3 people in Robinson in Crawford County.  The first round of convection developed along a warm front lifting northeastward through the area during the afternoon.  These storms were primarily very large hail-producers, with up to baseball-sized (2.75 diameter) hail being reported in the town of Banner in Fulton County.  Once the warm front lifted into northern Illinois, a modestly unstable but highly sheared environment was in place during the late afternoon and evening...with CAPE values of 1500-2500J/kg and 0-6km bulk shear in excess of 70kt.  As a trailing cold front approached from the west, additional supercell thunderstorms developed that produced tornadoes, very large hail, and damaging wind gusts.  The cells eventually congealed into a broken line as they pushed eastward to the I-57 corridor by mid-evening.  Meanwhile, a discrete supercell ahead of the line tracked south of I-70, dropping the EF-3 tornado in Crawford County.

Tornado event in CHRISTIAN County, ILLINOIS
Start: 31-MAR-23 18:13:00
End: 31-MAR-23 18:14:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A tornado touched down 2 miles south of Taylorville at 7:13 PM CDT.  It tracked east-northeastward, knocking down about 30 power poles along North 1250 East Road (Taylorville-Nokomis Blacktop) before dissipating in an open field just east of the road at 7:14 PM CDT.
Episode narrative: During the evening of July 14, severe thunderstorms brought damaging winds to northern Illinois as well as one EF-0 tornado that tracked from Warrenville to Glen Ellyn.

Tornado event in DU PAGE County, ILLINOIS
Start: 14-JUL-23 19:58:00
End: 14-JUL-23 20:10:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: This tornado began just southeast of Fermilab and tracked east-northeastward across Warrenville and Wheaton before dissipating just northeast of the College of DuPage in Glen Ellyn. Damage along the storm's path consisted mostly of downed trees and tree branches.
Episode narrative: A weakening upper level low pressure area moved into far southeast South Dakota by early evening. Slow moving thunderstorms developed within a very narrow axis which nosed into Buena Vista County, where the environment featured maximized and collocated 0-3km shear and 0-3km CAPE, and resulted in a few brief tornadoes connected with storm development phase.  In addition, very efficient thermodynamic profiles resulted in extremely heavy rainfall rates, with observed rates up to 2 to 3 inches per hour.

Tornado event in BUENA VISTA County, IOWA
Start: 13-MAY-23 12:50:00
End: 13-MAY-23 12:55:00
Direct deaths: 0
Event narrative: A tornado spun up just north of the Sac-Buena Vista County border between 90th and 100th Avenue. The circulation featured intermittent contact with the surface for the next mile, as the tornado tracked a bit more westward after crossing 90th Avenue. There were no damage indicators impacted along the track, which was documented fully on storm chaser video. An EF rating could not be determined and the average path width was estimated to be 50 yards.

Tornado event in BUENA VISTA County, IOWA
Start: 13-MAY-23 15:17:00
End: 13-MAY-23 15:24:00
Direct deaths: 0
Event narrative: A tornado quickly spun up east of 230th Avenue and north of 620th Street in an open field. The tornado traveled to the north-northwest for several minutes, then crossed roadways near the intersection of 230th Avenue and 600th Street.  The tornado impacted a small farmstead on the west side of 230th Avenue where it tore several shingles off an old barn and damaged numerous branches and several rotted trees. The tornado continued another quarter mile to the northwest before lifting. The maximum wind speed was 75 mph and the average path width was 50 yards.
Episode narrative: A supercell embedded within a line of thunderstorms associated with a mesoscale convective complex moving across southwest Florida produces a brief tornado on Pine Island in Lee County, while flooding reported around Cape Coral in Lee County.

Tornado event in LEE County, FLORIDA
Start: 18-JUN-23 10:10:00
End: 18-JUN-23 10:11:00
Direct deaths: 0
Property damage: 5.00K
Event narrative: A virtual survey using several photos captured from the area suggests that the only damage was done to a recently-constructed metal outdoor freezer. This freezer was complete, properly secured, and was made of aluminum and insulated with Styrofoam.  While some fence damage was noted, this damage could not be reliably attributed to the tornado, given a lack of nearby tree damage and little-to-debris. Imagery from the area also shows some damage to this fence before the tornado took place. As such, the  tornado was on the ground for approximately 27 feet (or 0.005 mi) and spent only a few brief seconds on the ground before lifting again.
Episode narrative: Showers and thunderstorms produced gusty outflow winds and a brief tornado.

Tornado event in ELKO County, NEVADA
Start: 05-JUN-23 15:25:00
End: 05-JUN-23 16:25:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: Public submitted photos of a tornado SE of Wells over mountainous terrain of the Wood Hills area. No survey was conducted due to no apparent damage and inaccessible or remote terrain. Path length an width were guessed at.
Episode narrative: Scattered thunderstorms developed along a stationary front during peak heating during the afternoon across portions of the Prairie Coteau and James River Valley. A brief landspout tornado was reported in the Clark area between roughly 2:30 pm and 2:45 pm CDT.

Tornado event in CLARK County, SOUTH DAKOTA
Start: 07-JUN-23 13:30:00
End: 07-JUN-23 13:30:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A landspout tornado was observed north of the Clark County airport to the northeast of Clark.
Episode narrative: A weak low pressure system served as the focal point for small, scattered and slow-moving thunderstorms across far northeastern South Dakota during the afternoon of June 5th. A brief landspout tornado was observed north of Summit and south of Sisseton around 2:45 pm. No damage was reported.

Tornado event in ROBERTS County, SOUTH DAKOTA
Start: 01-JUN-23 13:45:00
End: 01-JUN-23 13:45:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: The report of a brief landspout tornado came with a photograph.
Episode narrative: Isolated and small slow-moving showers developed across northeastern South Dakota along an elongated area of weak low pressure during peak afternoon heating amidst upper 80s and low 90s temperatures. A brief landspout tornado was observed 9 miles north of Rauville around 4:00 pm. No damage was reported.

Tornado event in CODINGTON County, SOUTH DAKOTA
Start: 06-JUN-23 14:58:00
End: 06-JUN-23 14:58:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A photo of the landspout was submitted via social media.
Episode narrative: Support from an upper low over the Montana and Idaho border as well as increasing surface based instability lead to thunderstorm activity over the east slopes of the Cascades and the Blue Mountains. On the western side of the Blue Mountains just east of the foothills, surface winds, outflows from storms over the mountains, and the area terrain lead to the development of a landspout east of Milton-Freewater.

Tornado event in UMATILLA County, OREGON
Start: 27-JUN-23 15:40:00
End: 27-JUN-23 16:05:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: Social media reports including several photos showed a landspout had spun up in the farm fields east of Milton-Freewater, OR.
Episode narrative: Broad troughing was present aloft across the Western US during the afternoon/evening of the 19th. An area of surface low-pressure slowly deepened and moved towards north-central Kansas, with dryline extending from central Kansas through western-north Texas by the late afternoon hours. A well-timed lead upper wave, combined with broken insolation, led to the development of a few supercell thunderstorms across central Oklahoma. Multiple instances of large to very large (>2 inches) hail, along with 18 tornadoes, occurred across central Oklahoma.

Tornado event in CLEVELAND County, OKLAHOMA
Start: 19-APR-23 18:03:00
End: 19-APR-23 18:04:00
Direct deaths: 0
Property damage: 5.00K
Event narrative: The first tornado out the April 19th outbreak developed southeast of SE 89th Street and Sooner Road and moved north-northeast crossing into Oklahoma County. In Cleveland County, trees and a shed were damaged.

Tornado event in OKLAHOMA County, OKLAHOMA
Start: 19-APR-23 18:04:00
End: 19-APR-23 18:08:00
Direct deaths: 0
Property damage: 150.00K
Event narrative: The first tornado of the outbreak moved into Oklahoma County from Cleveland County. The tornado moved north-northeast with the east edge of the tornado brushing Air Depot Blvd before turning northwest and dissipating north of SE 59th Street between Sooner Road and Air Depot Blvd. Roof damage occurred at an industrial building along Air Depot Blvd, and a number of storage pods there were blown around by the tornado.
Episode narrative: A shortwave trough over the Central Rocky Mountains and an active sub-tropical jet stream aided in the development of numerous supercells over the higher elevations of the Davis Mountains, Glass Mountains, and Big Bend region.  A couple of additional thunderstorms develop across portions of the Permian Basin. Several reports of large hail, damaging winds, and a landspout tornado were received.

Tornado event in JEFF DAVIS County, TEXAS
Start: 26-MAY-23 15:08:00
End: 26-MAY-23 15:10:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: Lanspout: A landspout tornado developed around 408 PM CDT about 20 miles northwest of Marfa, TX, and was on the ground for approximately one minute. A second developed shortly after the first, dissipating within 10 to 15 seconds. No damage was reported. Path details are estimates.
Episode narrative: A very strong system developed on the morning of March 31st and tracked across the state of Iowa. This system pulled unseasonably warm and moist air into the Midwest, which combined with a very favorable wind profile to create a volatile environment for severe thunderstorms.  Discrete supercell thunderstorms occurred initially, but quickly transitioned into a QLCS mode. This system produced a historic tornado outbreak for the area, with a record 29 tornadoes on the day, including 13 rated EF-2, 1 rated EF-3, and 1 rated EF-4. This was the first EF-4 tornado in the NWS Quad Cities service area since 1995. 11 injuries were reported, with no known fatalities. In addition to the numerous tornadoes, there were many large hail and damaging wind reports. Maximum straight line thunderstorm winds were estimated at 80 to 90 mph.

Tornado event in JACKSON County, IOWA
Start: 31-MAR-23 17:16:00
End: 31-MAR-23 17:17:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A tornado touched down just south of Bellevue, and moved northeast over the Mississippi River before dissipating. This tornado impacted an RV park and some cabins located nearby. Some structural damage was noted, with some RVs that were flipped and damaged. Several trees within the area were also impacted, with some uprooted. Three  injuries were noted with this tornado in the vicinity of the RV park. This tornado continued into Jo Daviess County, Illinois, but likely dissipated over the river as no damage was observed in a wooded area adjacent to the river. Peak winds were estimated around 105 mph.

Tornado event in CEDAR County, IOWA
Start: 31-MAR-23 16:18:00
End: 31-MAR-23 16:36:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: A tornado touched down 3 miles north of Atalissa, Iowa in Cedar County, snapping power poles and large trees along its path. It caused significant damage to two homes southwest of Bennett, Iowa, and flipped over a semi along interstate 80. It also damaged several concrete block silos south of Bennett. The tornado continued to track to the northeast through a rural area, causing sporadic tree damage.  The tornado entered extreme northwest Scott County about a third of a mile south of 220th St., then travelled around one mile before entering Clinton County about a half mile west of the intersection of 280th St. and 110th Ave. The tornado then dissipated about 2 miles south of Wheatland. The peak winds were estimated at 120 mph. The tornado was rated EF-2 in Cedar County, and EF-0 in Scott and Clinton Counties.
Episode narrative: A high amplitude, negatively tilted trough moving across the Great Lakes and into New England along with cold and warm front provided strong forcing which resulted in flooding, wind damage, and 5 tornadoes. In the warm sector dewpoints surged into the mid 70s with PWATs near 2 inches which led to torrential downpours. Tornadoes occurred in Scotland, Ct, Scituate, RI, North Attleboro, MA, Stoughton, MA, and Weymouth, MA. The tornadoes ranged in intensity from EF-0 to EF-2.

Tornado event in WINDHAM County, CONNECTICUT
Start: 18-AUG-23 06:53:00
End: 18-AUG-23 06:59:00
Direct deaths: 0
Property damage: 30.00K
Event narrative: A tornado caused damage in the town of Scotland, located in Windham County, CT. The tornado touched down on Bass Road and continued along Route 14 (Huntington Road) and crossed Pinch Street before it eventually lifted near Brook Road. While there wasn't much in the way of structural damage observed, other than gutter damage to two homes, there was significant tree damage. It was estimated that well over one hundred trees were either downed or sheared off at their tops.
Episode narrative: An upper level trough, surface low pressure center, stationary front, and a Pacific cold front all aided in the development of thunderstorms on Wednesday April 26 across much of the region. Several storms became severe with mainly large hail. Up to softball sized hail occurred in McLennan County. A few storms also produced wind damage, and two very brief tornadoes were caught on camera. Unfortunately two children were injured from anvil lighting strikes in the DFW area.

Tornado event in MCLENNAN County, TEXAS
Start: 26-APR-23 16:26:00
End: 26-APR-23 16:26:00
Direct deaths: 0
Property damage: 0.00K
Event narrative: Twitter video evidence of a small, brief tornado in this area. No damage was reported.
Episode narrative: Broad troughing was present aloft across the Western US during the afternoon/evening of the 19th. An area of surface low-pressure slowly deepened and moved towards north-central Kansas, with dryline extending from central Kansas through western-north Texas by the late afternoon hours. A well-timed lead upper wave, combined with broken insolation, led to the development of a few supercell thunderstorms across central Oklahoma. Multiple instances of large to very large (>2 inches) hail, along with 18 tornadoes, occurred across central Oklahoma.

Tornado event in CLEVELAND County, OKLAHOMA
Start: 19-APR-23 19:41:00
End: 19-APR-23 19:44:00
Direct deaths: 0
Property damage: 50.00K
Event narrative: Tornado #10 occurred simultaneous to and somewhat parallel to tornado #9 to the south of Etowah. This tornado moved east just north of Maguire Road developing near 156th Avenue. At least two large barns were destroyed as well as numerous trees along the path.

Tornado event in CLEVELAND County, OKLAHOMA
Start: 19-APR-23 20:18:00
End: 19-APR-23 20:21:00
Direct deaths: 0
Property damage: 10.00K
Event narrative: The fifteenth tornado of the outbreak developed northeast of Little Axe southwest of the intersection of 180th Avenue SE and Tecumseh Road and moved northeast dissipating east of this intersection. Trees were downed and one home on Tecumseh Road suffered roof damage.

Tornado event in POTTAWATOMIE County, OKLAHOMA
Start: 19-APR-23 20:21:00
End: 19-APR-23 20:28:00
Direct deaths: 0
Property damage: 50.00K
Event narrative: A tornado developed in Bethel Acres near Bethel Road south of Clear Pond Road, and moved north-northwest dissipating northwest of the intersection of Bethel Road and Lake Road. At least one home and two mobile homes were damaged, including one mobile home that was partially pushed over. This was the sixteenth tornado of the outbreak.