The following events were reported: Flash Flood, Flood, Hail, Lightning, Thunderstorm Wind. These occurred near station USW00003927, approximately 30.4753 km away, between 2009-05-02 13:36:00 and 2009-05-03 02:45:00. The events included records with hailstones measuring 15.731052631578947 inches. The flood was caused by Heavy Rain. The events resulted in 13 injuries and 0 fatalities. The events caused property damage valued at 5289500.0 and crop damage of 0.0. Episode Narrative: The combination of a southward advancing cold front, warm air advection over the cold front, and an approaching shortwave aided in an explosive period that began the afternoon of May 2nd and continued into the morning hours of May 3rd. Several rounds of severe thunderstorms and thunderstorm clusters moved through north Texas in a very unstable environment. A downburst occurred at Valley Ranch in Irving resulting in the collapse of the Dallas Cowboys' bubble practice facility. Flash flooding and flooding became a problem as several clusters of storms produced heavy rainfall over repeated areas. The combination of a southward advancing cold front, warm air advection over the cold front, and an approaching shortwave aided in an explosive period that began the afternoon of May 2nd and continued into the morning hours of May 3rd. Event Narrative: Penny size fail fell 5 miles east of Benbrook. Golfball size hail was reported 5 miles south of Denton on Interstate 35 West. Penny hail fell near Hulen Blvd and Trail Lake Drive in southwest Fort Worth. A NWS storm survey determined that a microburst with estimated 70 mph winds caused the collapse of the Dallas Cowboys' 80,000 sq ft bubble practice facility at Valley Ranch. The facility was approximately 85 feet tall and composed of a fabric shell and metal. A rookie minicamp was being held at the time and 12 people were injured. One coach was paralyzed from the waist down. Also in the area, trees were splintered and heavily damaged, but most of the damage was confined to around the practice field. Penny size hail was reported in Coppell. Penny size hail was reported at the intersection of Highway 114 and Kimball Rd in Southlake. Ping-pong size hail fell in southern Denton. A storm spotter measured a 64 mph wind gust. A trained spotter estimated 60 mph winds at I-35 and Altamesa. Penny size hail fell 2 miles east of Benbrook. Nickel size hail fell at the intersection of Trail Lake Rd and Interstate 20. Golfball size hail fell near Argyle. Penny size hail was reported by a COCORAHS observer 3 miles west of Edgecliff Village. Several single-family residences were flooded in Oak Point. A man was struck by lightning after it first hit a tree and then jumped to him. The lightning stripped the tree of its bark and some of the bark pieces also hit the man. He was not seriously injured but taken to the hospital. The Hickory Creek Mobile Home community was flooded by Bryant Branch Creek that runs through the community. The water depth ranged from knee deep to 5 feet deep in some locations and entered several homes. One couple had to evacuate their home after it was deemed unsafe to live in when it started shifting from the flood waters. FM 1385 east of Aubrey was closed due to water over the road. FM 407 between Argyle and Interstate 35W was closed due to water over the road. Numerous roads in northeast Dallas were flooded. Also, Walnut Hill Lane at Goodnight Lane was flooded. Floodwaters entered homes in Trophy Club. Large trees were split, shingles were blown off roofs, and fences were down in Frisco. Two feet of water was reported over the road near Loop 820 and Lancaster Avenue on the east side of Fort Worth. The access road along Interstate 35E in the Corinth and Lake Dallas area had water over the road. Nickel size hail fell 2 miles west of Benbrook. Nickel size hail fell in east Benbrook. Quarter size hail fell in Benbrook. Penny size hail fell in Arlington. Ongoing flooding continued into the night from heavy rainfall over the county during the evening hours. Hickory Creek Mobile Community continued to be affected by several feet of water from flooding on Bryant Branch Creek. Several trees were snapped in half near Valwood Parkway and Crosby Road just east of Valley Ranch.