Tysons has had a tornado, and that is the kind of fact that sends owners up to look at a roof. The National Weather Service keeps a public record, and it is more specific than the retelling. Below are the six entries that name Tysons, what each says, and what the whole set leaves out.
The entries
“A few trees were blown down in the Tysons/Vienna area,” including along Dolley Madison Boulevard near the Dulles Toll Road. Damage field: 2.00K.
“Numerous trees down near Tysons Corner/McLean,” with Besley Road, Old Dominion Drive, Georgetown Pike and Idylwood Court named. Reported by the 911 call center. Damage field: 10.00K.
Old Courthouse Road near Howard Avenue closed because of flooding, during the remnants of Ida. Damage field: 0.00K.
Touched down along Chain Bridge Road northwest of Tysons Corner Center. Damage field: 200.00K. Detail below.
A few reports of trees blown down, on the ramp from Route 7 to Route 123 and along Old Falls Road. Damage field: 3.00K.
Fairfax County emergency management reported several water rescues in the Tysons/McLean area. Damage field: 0.00K.
We read the bulk files for 2015 through the September 2026 release from the National Centers for Environmental Information and kept Fairfax County rows whose location or narrative names Tysons. Two rows carry a nearby place as the begin location (Kenmore, Lewinsville) and are here because the narrative says Tysons. Damage figures are the database's own estimate field, not an assessment of any roof.
Of the six entries, three are wind reports about trees, two are floods, and the one that names a roof part describes paneling and canopies on gas stations. A record like this can justify a look after a storm. It cannot tell a board that its own roof is sound or damaged.
The tornado
A garage door facing northwest was blown 10 to 15 feet away from the building. Metal paneling at the top of the roof along the northwest and southeast facing sides of the building were damaged and tossed away from the building.
National Weather Service storm survey, narrative for event 1006547, Storm Events Database, read October 16, 2026.
For TPO owners
TPO is a thermoplastic membrane, so its seams are fused with heat rather than glued, and a good weld is one that can only be separated by tearing the sheet. After a wind event, look first where the sheet ends. The single-ply trade association SPRI advises checking perimeters for loose metal or fasteners, flashings around penetrations, and drains after any major storm. Whether a given storm counts as major is your judgment, and the entries above do not rank themselves.
Reading it fairly
It is a dated list of reports, each with a source: a 911 call center, broadcast media, an emergency manager, a survey team. It tells you a thing happened near a point on a day. Who owns the roof, what the county asks before work and what snow and wind figures Fairfax County prints are covered on the Tysons page, and the flat roof guide and TPO roofing in Northern Virginia explain the membrane itself. Neighbouring pages: TPO roofs in McLean and TPO roofs in Vienna.
FAQ
The survey names metal paneling at the top of one service station's roof and canopies on two stations. It names no membrane roof and no residential or office roof.
The database lists it as EF0, 0.13 mile long and 50 yards wide, from 7:41 to 7:42 p.m.
No. None of the six entries names a roof covering of any kind.
The begin-location field can hold a nearby named place. We kept those two because their narratives say Tysons.
They do not. The flood entries describe a closed road and water rescues, with no damage reported in the field.
The National Centers for Environmental Information publish the Storm Events Database as a searchable site and as yearly files. Filter for Virginia, Fairfax County, and read the narrative column.
Read on October 16, 2026: the NCEI Storm Events yearly files for 2020, 2021, 2022, 2023 and 2025, and the SPRI single-ply FAQ.
Talk through the next step
Tell us the building, who owns the roof and what you know about the membrane. A short phone call comes first.
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