The following events were reported: Thunderstorm Wind, Tornado. These occurred near station USW00093738, approximately 26.1627 km away, between 2017-04-06 11:50:00 and 2017-04-06 12:38:00.Thankfully, no injuries or fatalities were reported. No significant property or crop damage was reported. Episode Narrative: Cutoff low pressure was over the Ohio Valley. Another area of low pressure strengthened overhead on the occluded boundary. Warm and moist air from the south lead to an unstable atmosphere. Strong shear profiles were in place due to the cutoff low to the west. Strong lift associated with the developing low combined with strong shear and enough instability to produce severe thunderstorms and isolated tornadoes. Cutoff low pressure was over the Ohio Valley. Event Narrative: Trees were down just north of the Intersection of Bull Run Post Office Road and U.S. 29 Lee Highway. Several small trees were snapped at the Sugarland Run Stream Valley Park in Herndon. An outbuilding was destroyed. A large tree and branches were also down through the exterior wall of a house on Donnybrook Drive. A large pine tree was snapped at the base. Numerous trees and power lines were down along Summerduck Road near Maryann Lane. Several trees were down in Opal. A large tree was down blocking part of Southbound Fairfax County Parkway near the intersection of Burke Center Parkway. Trees were down on Sudley Manor Road. A tree was uprooted. A tree fell onto a house and deck. A tree fell onto power lines blocking Lomond Drive near Powhatan Street. A tree fell onto power lines on Old Delaney Road. Trees were down in the 2000 Block of Aquia road. A Greenhouse was destroyed in the 7000 Block of Tacketts Mill Road. About two dozen trees were snapped near the intersection of Gum Spring road and Lennox Hale Drive. Numerous trees were down along Waterloo Farm Road. Dozens of trees were down near Greenwich. A tree was down at the Courtyard Hotel in Herndon. A wind gust of 59 mph was reported. A wind gust of 59 mph was reported at Independent hill. A tree fell onto a car. A tree was down on a power line. A tree fell onto power lines. Trees were down near Bristow. The National Weather Service in Baltimore MD/Washington DC has |confirmed a tornado southwest of Warrenton in Fauquier County |Virginia on April 6, 2017.||An extensive area of tree damage was noted along a several mile long |path in west-central Fauquier County. Embedded within this straight-|line wind damage was a small concentrated area of convergent tree |damage consistent with an EF-0 tornado.||A row of trees just north of Harts Mill Road was blown down towards |the west-northwest, while several other trees just south of the road |were snapped and fell towards the northeast. A similar pattern of tree |damage was found at a residence on Woodbourne Lane a quarter mile to |the northeast, where several dozen hardwood trees were uprooted, mainly |falling towards the east but a couple fell towards the west.||Further southwest and to the northeast of the tornadic damage, |hardwood and softwood trees were snapped and uprooted but all falling |to the northeast over a nearly mile-wide swath, indicating straight-line |wind damage. It is notable that the straight-line wind damage was more |severe than that caused by the brief tornado.||The National Weather Service would like to thank the Fauquier County |Emergency Management Agency and the residents interviewed for their |assistance in this survey. The National Weather Service in Baltimore MD/Washington DC has |confirmed a tornado near Airlie in Fauquier County Virginia on April |6, 2017.||The tornado caused a nearly continuous path of convergent tree damage. |Large to mid sized trees were snapped and uprooted. The most intense |of which was the result of estimated wind speeds of 85 mph that |snapped several large trees on Airlie Road between Artillery Road |and The Rainforest Trust. The first trees downed were noted just |west of US 17. After crossing Airlie Road, the tornado snapped and |uprooted trees all along Blantyre Road. Continuous damage stopped |just prior to Interstate 66.||The National Weather Service would like to thank the Fauquier County |Emergency Management Agency and the residents interviewed for their |assistance in this survey. The National Weather Service in Baltimore MD/Washington DC has |confirmed a tornado near New Baltimore in Fauquier County |Virginia on April 6, 2017.||The tornado caused a continuous path of extensive tree damage, |along with some minor structural damage. The first instances |of uprooted and snapped trees occurred just northwest of the |intersection of Lee Highway and Electric Avenue. The tornado |continued north-northeast, generally along Beverlys Mill Road,|causing additional damage to just north of Fairview Lane.||Extensive tree damage was found along the tornados path, |where many hardwood and softwood trees were either snapped, |topped or uprooted in a convergent pattern. Several trees |fell on vehicles. Wooded fences were blown down in several |locations along its path. A roof was partially removed from |a barn. Other metal roofing was removed from smaller outbuildings. |Several sheds were either destroyed or severely damaged. Most homes  |in the path had minor damage to shingles, gutters and siding.||Two residents in the area witnessed the tornado with debris |being lofted.||The National Weather Service would like to thank Fauquier |County Emergency Management Agency and the residents interviewed |for their assistance in this survey. Additional minor and sporadic tree damage was noted in a |north-northeastward path, with several trees snapped and |uprooted and an instance of siding damage noted by a trained |spotter just east of South Lincoln Avenue. The tornado likely |lifted for a final time just northeast of the intersection of |East Frederick Drive and Sugarland Road in Sterling Park.||The National Weather Service would like to thank Fairfax and Loudoun |County Emergency Management Agency and the residents interviewed |for their assistance in this survey. A path of sporadic damage, mainly to trees, began just east |of Rock Hill Road in between the Dulles Greene and Capstone |apartment complexes in Herndon. About a half dozen trees here |were either snapped or uprooted in a convergent pattern. One of |the trees was thrown into the window of a nearby apartment |building.||The National Weather Service would like to thank Fairfax and Loudoun |County Emergency Management Agency and the residents interviewed |for their assistance in this survey.||The tornado continued north-northeast, where additional tree |damage was noted near the intersections of Summerfield Drive |and Autumn Breeze Court, and Sterling Road (VA-606) and |Herndon Parkway. Several trees were downed from east to west, |and fencing was blown down north to south.||It appears the tornado lifted briefly as it continued |north-northeast, before touching down again near the intersection |of Crestview Drive and Builders Road. Here, nearly a dozen trees |were snapped or uprooted, mainly to the north, with fencing |blown down towards the trees (to the west).