The following events were reported: Hail, Thunderstorm Wind, Tornado. These occurred near station USW00013960, approximately 31.0647 km away, between 2019-10-20 19:58:00 and 2019-10-21 23:15:00. The events included records with hailstones measuring 38.47222222222222 inches.Thankfully, no injuries or fatalities were reported. The events caused property damage valued at 431450500.0 and crop damage of 0.0. Episode Narrative: Thunderstorms erupted across the DFW Metroplex as a strong upper level system and a cold front impacted the region on the evening of October 20 through the early morning hours of October 21st. A few storms developed ahead of the approaching cold front in the late evening hours of the 20th, producing tornadoes in Dallas and surrounding areas. Additional storms formed a squall line along the cold front, producing a large swath of damaging winds across North and Central Texas overnight into the early hours of October 21st. A total of 10 tornadoes were identified by NWS Survey teams, occurring both within the storms ahead of the cold front, and embedded within the squall line. The strongest of these tornadoes was an EF-3 that stretched almost 16 miles across the northern portions of Dallas County. Following on the heels of that tornado, an EF-2 tracked about 2.5 miles through Garland in Dallas County. The remaining count of tornadoes included 4 EF-1s and 4 EF-0s. Miraculously, no one was killed or significantly injured in any of the tornadoes! The total estimated cost of insured damage for all the tornadoes alone is over $2 billion, which the Insurance Council of Texas claims is the most costly tornado event in the state's history. Of the straight line wind damage, the most severe was located in Farmersville in Collin Co where a mobile home was rolled and destroyed. Three people were injured in the home. Over a dozen other manufactured homes in the same area were damaged, too. Thunderstorms erupted across the DFW Metroplex as a strong upper level system and a cold front impacted the region on the evening of October 20 through the early morning hours of October 21st. Event Narrative: The tornado began near Highway 67 and 9th Street on the north side of Midlothian and traveled east for approximately 2.8 miles. Several church and retail buildings experienced blown out windows and roof damage. One of the buildings connected to the Lighthouse Church was heavily damaged with the collapse of the southward facing wall and much of the roof removed. Just to the east of Highway 67, sheet metal was peeled on two buildings and metal roof purlins were bent on one. This damage was consistent with winds of 100 to 110 mph, and EF-1 intensity. The tornado weakened some as it headed east and crossed into a residential area south of Mockingbird Lane. Damage indicates the tornado intensified in the area of Morning Dove Lane and Pheasant Drive. Several homes experienced significant roof damage, uplift of the roof deck of at least one home, some windows blown out, a garage door collapsed, and several trees were uprooted. This type of damage was consistent with wind speeds of 100 to 110 mph, or EF-1 intensity. The tornado weakened before ending near Walnut Grove Road. The tornado started on Kenmore Street just north of West Miller Road where part of a Sears Facility warehouse was heavily damaged. A wide section of the metal roof was peeled off and subsequently the adjacent metal walls were also torn away. Some of the interior support columns and beams were bent, causing another part of the roof to collapse. In addition, an empty 18 wheeler was tipped over and a van was also on its side. The tornado then struck a newly built warehouse to the east of this facility where nearly the entire building collapsed. The interior support columns were bent to the ground in this facility as the pre-case concrete tilt-up walls collapsed to the east. The damage to these two facilities indicated high end EF-2 damage with winds of 135 mph. Damage from the second warehouse was blown into the adjacent neighborhood to the east across Shiloh Road and damaged some homes. The tornado also snapped and uprooted many trees and damaged many roofs and homes along its path through the residential area from Shiloh Road to Garland Avenue. Roof damage consisted of a combination of loss of decking and shingles. Some roofs were also damaged by fallen trees and other debris. One house in particular on the corner of Westway Avenue and Patricia Lane sustained damage to the garage which partially collapsed. Damage in this neighborhood was consistent of EF-0 and EF-1 damage. The tornado then moved across Garland Ave towards Central Park damaging more roofs and trees near Degge Circle, and then damaging baseball fields and fences at the park. The tornado continued northeast from the park causing minor damage as it weakened, dissipating near Avenue D and Santa Fe Street. A trained spotter reported two-inch diameter hail immediately southeast of the city of Crandall. Tree damage was reported near FM 2755 and FM 586 in southeast Collin County. Power lines were also knocked down in this location. A 69 MPH wind gust was reported by the Lancaster, TX Regional Airport Automated Weather Observation System. A damage report was received from an unknown location in the city of large tree limbs down and a roof peeled off a building. The tornado formed in northwest Dallas, near State Highway 348 and Luna Road, where large tree damage and minor roof damage was initially observed. This tornado tracked toward the east-northeast, crossing I-35E and impacted numerous commercial structures between this freeway and Harry Hines Blvd.||Extensive damage to many businesses and residences, consistent with EF-1 and EF-2 intensity wind speeds, occurred near the intersection of Harry Hines Blvd and Walnut Hill Lane. As the tornado moved eastward, roughly coincident with Walnut Hill Lane, several gas stations, large commercial buildings, and churches, and at least one multi-story apartment complex sustained significant roof and exterior wall damage. This path of strong EF-1 and EF-2 damage continued east-northeast along Walnut Hill Lane through the Marsh Lane and Midway Road corridors. East of Marsh Lane, the tornado impacted more single-family residences, though commercial structures were still adversely affected at times. Severe damage to large hardwood trees, consistent with EF-1 intensity winds, was observed throughout the damage path from Marsh Lane to US HWY 75. ||Intermittent EF-1 and EF-2 damage also occurred to a number of residences in this area. Many of these damaged homes were large and/or well-established structures that sustained either partial or total roof loss, accompanied by minor exterior wall damage. This damage was consistent with 110-125 mph tornado winds. Within one concentrated region of EF-2 damage along Northaven Road west of US HWY 75, a particular single-family home was surveyed with total roof loss, and multiple collapsed exterior walls. The survey team determined that this damage was consistent with low-end EF-3 intensity winds of approximately 140 mph. This was the only structure that was assigned an EF-3 rating for this tornado. ||The tornado continued eastward, toward US HWY 75 and produced significant roof damage to several businesses near US HWY 75 including office low-rise buildings, a car dealership, and a Home Depot. Damage here was assigned an EF-2 intensity. The tornado crossed over the southern part of the Texas Instruments campus and then began to turn more northeastward and parallel Greenville Avenue. Tree and roof damage consistent with EF-1 occurred as it crossed I-635. Several glass windows were blown out at a mid-rise office building. The tornado crossed an apartment complex near Walnut Street and Greenville Avenue where dozens of units had sections of missing roof consistent with EF-1 damage of 95-110 mph. The tornado moved across the Cutters Point apartment complex where numerous units experienced significant roof loss consistent with 115 mph or EF-2 damage. Another low-rise office building saw numerous windows blown out on all sides. The tornado continued into the Richland Park, Lakes of Buckingham, Richland Meadows, and College Park residential subdivisions where widespread tree and roof damage consistent with 80-95 mph winds occurred. A few homes in this area saw complete or total roof loss where winds were estimated at 110 mph or EF-1. The tornado began to weaken and took a sharp turn to the north near Richardson Square where it tracked to the Huffhines Park areas. Mostly tree damage occurred here with winds estimated near 70 mph or EF-0. The track then turned to the east and became very narrow near Duck Creek with the tornado dissipating as it crossed Jupiter Rd. The tornado had a continuous track for 32 minutes, tracked for just over 15 miles, produced maximum winds of 140 mph, with a maximum width of three-quarters of a mile. A tornado touched down briefly near Main Street and Highway 45/Central Street in Ferris. A silo near 7th and Main Street sustained damage and partially collapsed. There was roof damage to multiple business buildings south of 5th Street and along Main and Central Streets. A downed power pole and an uprooted tree were also noted in the same area. The damage was consistent with winds speeds between 75 and 85 mph, or EF-0 intensity. Sporadic wind damage was found across other potions of Ferris with damage mainly to trees and roofing. A wind gust of 65 MPH was measured by a mesonet station at 1902 Palmer Trail, Grand Prairie, TX. A social media report indicated quarter sized hail in Grand Prairie near Joe Pool Lake. A line of thunderstorms along an advancing cold front spawned a tornado in west Allen, in the vicinity of Exchange Parkway and Ridgeview Drive. The tornado traveled east northeastward, roughly coincident with Ridgeview Drive, snapping large tree limbs/trunks, pulling shingles off a number of residences, and blowing down wood fencing and a stone wall. The tornado crossed US-75 and impacted the Village at Fairview commercial district, damaging roofs and facades. It dissipated shortly east of this area. A few of the uprooted trees and snapped trunks were consistent with 80 mph winds. The onset of damage with this tornado path began along Larkin Lane in Rowlett with a few trees and roofs damaged. The track continued east northeast with the greatest intensity of damage observed in the 4600 block of Hilcox Road just before PGBT where one home lost most of the roof, saw severe windows damaged, and the garage exterior walls collapsed. Several metal outbuildings and barns on this and adjacent properties were also severely damaged or destroyed. Multiple trees were snapped or uprooted along with power poles collapsed. The tornado moved over the east side of the PGBT where several houses and barns sustained significant roof damage or shingles removed. The damage track continued north/northeast near the Pleasant Valley neighborhood. A video shows this tornado as it was over Lake Ray Hubbard where it likely lifted before reaching the far shore. Maximum estimated winds were 100 mph with this tornado. Part of the roof of a home near Westmoreland and Lariat Circle in Oak Leaf was damaged. Large tree branches were also reported knocked down in the area. This entry is a continuation of the Rowlett tornado that began in Dallas County: The onset of damage with this tornado path began along Larkin Lane in Rowlett with a few trees and roofs damaged. Tornadic wind damage was observed in Rockwall, generally parallel with and north of US 66, from the eastern shore of Lake Ray Hubbard into northeastern Rockwall. The most intense damage was observed close to the lake, along Sunset Hill Drive where several homes sustained significant roof damage. As the path continued farther east across SH 205, damage consisted of downed trees and fences and missing shingles on roofs. Based on eyewitness accounts and video footage, a tornado, with maximum rated wind speeds of 90 mph, or EF-1 intensity was confirmed. The tornado is believed to have developed over Lake Ray Hubbard with a path length of almost 2 miles. Large tree branches were broken off and a propane grill was tossed on Indian Drive in Plaon. Significant thunderstorm wind damage was reported in the Princeton area along FM 982 near Lavon Lake. Moderate roof damage with the loss of several shingles occurred to 2 homes and several other items on the property were damage. One of the homes had clay shingles. Damage continued to the east-northeast where several trees sustained limb damage. About a quarter mile to the east of the first damaged homes, a manufactured home was nearly destroyed. A trained spotter reported quarter to half dollar sized hail in the southern part of the city of Grand Prairie, TX.