The following events were reported: Hail, Thunderstorm Wind, Tornado. These occurred near station USW00003927, approximately 25.5709 km away, between 2011-05-24 17:05:00 and 2011-05-24 21:25:00. The events included records with hailstones measuring 19.354727272727274 inches.Thankfully, no injuries or fatalities were reported. The events caused property damage valued at 3213000.0 and crop damage of 0.0. Episode Narrative: Three rounds of thunderstorms affected north Texas with 10 tornadoes confirmed. The atmosphere was highly unstable on this day and a High Risk was issued by the Storm Prediction Center for the northwestern counties of north Texas while a Moderate Risk covered much of the rest of north Texas. A strong upper level disturbance approaching from the west interacted with a dryline across the western portions of north Texas, and the first round of storms began to develop around 330 pm in the western counties. The first two rounds of storms remained along and north of Interstate 20 but the third round of storms later that night moved through most of the region as a line of storms. The most significant tornado occurred in the western limits of the city of Denton where EF-2 damage occurred. An EF-1 tornado also occurred in the city of Irving in Dallas County, and softball sized hail fell in the northern portions of the Metroplex. In the city of Dallas, one person died from electrocution after going outside around live, downed wires after a storm had passed. Three rounds of thunderstorms affected north Texas with 10 tornadoes confirmed. Event Narrative: Thunderstorm winds, likely associated with the RFD of a tornadic supercell, knocked down trees in the Vintage subdivision located in the southwestern portions of the city of Denton. Fences were also knocked down. Penny sized hail fell in the Sendera Ranch neighborhood just west of Haslet. Penny sized hail was reported by a NWS meteorologist in far north Keller. A brief tornado was observed about 3 miles north of Rhome. Some minor damage was reported to barns, and this tornado was rated an EF-0 with maximum estimated winds of 75-80 MPH. Penny to nickel sized hail fell in Frisco. Penny sized hail was reported 2 miles east of Eagle Mountain Lake. Golfball to baseball sized hail fell at Interstate 20 and Bowen Road in Arlington for several minutes. Hail stones up to 2 in diameter fell in the Sendera Ranch neighborhood just west of Haslet. Quarter to golfball sized hail fell in North Richland Hills. Cars were dented by the hail. Nickel sized hail was reported 3 miles southwest of Keller. Golfball sized hail was reported 1 mile south of Euless. Penny to quarter sized hail was reported in the southern portions of Euless by a NWS meteorologist. Tennis ball sized hail fell 1 mile west of Keller. Hail fell for several minutes in Avondale. The hail began as nickel sized but progressively grew to softball sized hail. Golfball sized hail fell at the intersection of Highway 114 and North MacArthur Blvd in Irving. A NWS Storm Survey determined that an EF-1 tornado occurred in the city of Irving, south of Highway 183. This tornado began along West Grauwyler Road and traveled nearly due south about one and a third miles before lifting near Story Road and 5th Street. Significant tree damage occurred in the Sherwood Forest neighborhood and some roofs were damaged in the same neighborhood. Most of the damage occurred south of Conflans Road along Huntington Drive. One large tree fell through the second story of a home. A small apartment complex at the end of Highland Park Drive was also significantly damaged. The roof was partially torn off one building, and the chimney and A/C vents were also torn off the same roof. Roof damage was observed on other apartment buildings and many windows were broken. South of the apartment complex, across Rock Island Road, the metal roof of a small retail building was torn off, and other buildings in the same retail center sustained damage. Significant tree damage also occurred along the southern portions of the tornado track. Maximum estimated winds were 105 MPH. The automated weather station at Arlington Municipal Airport (KGKY) measured a 70 MPH wind gust. A house was damaged by thunderstorm winds in Saginaw. Shingles were also damaged in the city and several trees were either knocked down or uprooted. Golfball sized hail fell for several minutes in Grapevine. The hail damaged many cars parked outside at DFW International Airport. In addition, about 50 American Airlines airplanes and three other large planes were damaged by the hail. Pea to penny sized hail was reported in the southern portions of Euless by a NWS meteorologist. Hailstones up to 2 in diameter fell at the intersection of Highway 114 and Freeport Parkway in Coppell. Seventy to seventy-five MPH winds were estimated along and just north of Loop 820 from Highway 377/Denton Highway to near Holiday Lane. These strong winds damaged several business signs and the roof of a commercial building at Loop 820 and Rufe Snow Drive. Several large trees and power poles were also knocked down along Rufe Snow Drive north of Loop 820. In the neighborhood around Richland Hills High School, many large tree limbs were broken, a few power poles were leaning about 20 degrees, and some trees were either split or knocked down. One tree fell on a house and damaged the roof. Softball sized hail fell just west of Willow Springs Golf Course. The hail knocked tiles off a pool and left holes in the roof of at least one home. Sixty MPH winds were estimated on Bonds Ranch Road in Haslet. Large tree limbs were knocked down and shingles were blown off roofs. Quarter sized hail was reported 7 miles south of Rhome or near Pecan Acres in northwest Tarrant County. Penny to half dollar sized hail fell in Hurst. Tennis ball sized hail was reported in west Keller between Highway 170 and Golden Triangle Blvd. Golfball sized hail fell near Highways 183 and 121 in Bedford. Significant structural damage occurred to some homes in the Nichols Way neighborhood of Irving. Roofs were damaged, part of a roof was torn off a house, and siding was stripped off a few homes. Trees were also knocked down or large limbs were broken off. Pea to penny sized hail fell in the 1000-1100 block of East Bowie Street for 10 minutes. Softball sized hail was reported on the northwest side of Keller. Sixty to seventy MPH winds were estimated in Corinth. Seventy MPH winds were estimated in the northwest side of Keller. A NWS Storm Survey analyzed wind damage along a line from Springtown to Haslet and determined that straight-line winds of 75 to 85 MPH caused much of the damage. Outbuildings, barns, roofs and trees were damaged by a supercell that tracked east across the area. Golfball sized hail was reported 4 miles west of Keller. Nickel to quarter sized hail fell in Euless. Seventy MPH winds were estimated on the east side of Fort Worth. Two large trees were blown down, and they fell on the roof of a house. Baseball sized hail was reported a mile south of Fort Worth. Straight-line winds caused damage along White Lane Road in south Haslet. Several trees were snapped or knocked over, two lean-tos that house horses were destroyed, a horse trailer was overturned, and an air conditioning unit was tossed across a yard. Other outbuildings, barns, and sheds were damaged. Five acres of fencing was also knocked down on one property and part of the trim of a house was torn off. A waterspout was observed over Lake Worth, and then it moved onto land damaging trees along Boat Club Road on the east side of the lake. A NWS Storm Survey determined that a EF-2 tornado began near the Argyle/Denton city line and traveled northeast for just over 1 mile. The tornado began in the Country Lakes subdivision where it significantly damaged the roofs of numerous homes. At least 10 to 12 homes sustained moderate damage. However, two homes lost part of their roofs on the order of EF-2 damage. To the northeast of the subdivision, near Johnson Lane, another home sustained minor roof damage and a barn was destroyed. Trees were also damaged along the path of the tornado. Maximum winds with this tornado were estimated between 115 and 125 MPH. Ping pong ball sized hail was reported in the southern portions of Euless by a NWS meteorologist. Golfball sized hail was reported at Interstate 30 and Beach Street on the east side of Fort Worth. Baseball sized hail fell near the intersection of Highway 377 and Keller Parkway. A 53-foot semitrailer was blown over and into a ditch on Interstate 35 around the Northlake area. Trees were blown down and shingles were blown off the roofs of an apartment complex on Boat Club Road near Lake Worth. A 67 MPH wind gust was measured at the National Weather Service Office. Straight-line winds caused damage near and east of Highway 121 and Glade Street in Bedford. Some business signs were blown out, about 10 trees were knocked down near the Lowe's, and tree damage was observed at homes behind the Lowe's store. Other wind damage to roofs, trees, fences, and sheds was also reported around Bedford.