The following events were reported: Thunderstorm Wind. These occurred near station USW00093738, approximately 18.1585 km away, between 2012-06-29 21:00:00 and 2012-06-29 23:15:00.Thankfully, no injuries or fatalities were reported. The events caused property damage valued at 112500.0 and crop damage of 0.0. Episode Narrative: A strong upper-level disturbance passed through the region in a northwest flow aloft. Extremely hot and humid conditions caused high amounts of instability. The upper-level disturbance triggered a line of thunderstorms that moved through the area. Due to the high instability, thunderstorms caused widespread wind damage. A strong upper-level disturbance passed through the region in a northwest flow aloft. Event Narrative: A large tree limb was down off of a healthy Oak Tree. A wind gust of 60 mph was measured. Large and medium sized trees were down across roadways. A tree was down near the intersection of Route 15 and Gap Road. Numerous trees were down along Arrowhead Drive. Large trees were blocking the intersection of Route 601 and Mount Weather. Maple tree tops were snapped off. Shingles were blown off roofs. A large tree was uprooted. A tree was down on a house along the 400 block of West Main Street. A large tree was down, damaging a fence on Pickwick Street. Large limbs were snapped on the Loudoun County Parkway just south of the Washington and Old Dominion Trail. A tree was down due to thunderstorm winds. At least ten trees were sheared off twenty to forty feet above the ground. Numerous trees were blocking a road. A wind gust around 51 knots was measured near Leesburg. A wind gust around 51 knots was measured near Belmont. A wind gust around 50 knots was measured near Arcola. A wind gust around 50 knots was measured near Ashburn. A deck was partially removed from a townhouse. Small limbs were snapped on Broderick south of Waxpool. A tree was snapped near the intersection of Broderick and Moran. Large limbs were down along Route 606. A wind gust around 50 knots was measured near Leesburg. A wind gust of 60 mph was measured at the Leesburg Airport. A small tree fell onto a parked car on Lincoln Avenue. A wind gust 63 mph was measured near Belmont. A wind gust of 62 mph was reported near Countryside. A wind gust of 61 mph was measured near Gainesville. A wind gust of 60 mph was measured near Lovettsville. Two limbs of at least twelve inches in diameter were snapped. A trunk of a large pine tree was snapped in half. A large tree was down blocking the intersection of Elden Street and Ferndale Avenue. A tree was down on Post Forest Drive at Black Ironwood Drive. Multiple large trees were down on Furnace Mountain Road, making it impassible between Route 15 and Taylorstown Road. Numerous trees were down along roadways. Some fell into houses and cars. Tree limbs of two to three inches in diameter were snapped along the Fairfax County Parkway. A tree that was three inches in diameter was down at the intersection of Lee Highway and Nutley Street. A small tree fell onto an unoccupied car in a driveway along Clear Spring Terrace. A large tree fell onto a house. A tree fell across the roadway near the intersection of Lowes Island Boulevard and Saulty Drive. A large tree fell into a townhouse along Sugarland Square. A large tree fell down over power lines. A power pole was broken off and wrapped into a tree. A wind gust of 71 mph was measured at Dulles International Airport. A wind gust of 60 mph was measured at the Warrenton Airport. Multiple branches were down. A wind gust of 79 mph was measured near Reston. A wind gust was estimated to be around 70 mph. A wind gust of 68 mph was measured near Nokesville. A wind gust of 67 mph was measured. Branches of at least four inches in diameter were blocking Valewood Drive. Damage occurred to the roof of a home. Many trees were snapped in half along Thicket Court. A tree was blocking the southbound Algonkian Parkway near Hardwood Forest Drive.