Weather · Tornado alerts

Live tornado alerts & EF-scale roof damage

Even an EF0 tornado (65–85 mph) can rip shingle strips off an entire slope. Check active NOAA watches and warnings and know what to look for after the sirens.

EF-scale roof impact

• • EF0 (65–85 mph): Missing shingle strips, gutter separation.
• • EF1 (86–110 mph): Broken decking, flashing failure, chimney damage.
• • EF2+ (111+ mph): Partial roof structure loss — call a structural engineer.

Watch versus warning, and what to do in each

A tornado watch means conditions are favorable across a broad region — that is your window to move vehicles under cover, bring in patio furniture that becomes projectiles, and charge devices. A warning means rotation has been detected by radar or spotted on the ground in your specific area, and the only correct action is to shelter immediately in an interior room on the lowest floor. Roof concerns are irrelevant during a warning; take the alert seriously.

After the sirens, storm damage is rarely limited to the tornado track. The parent supercell usually drops large hail and produces straight-line winds miles from the funnel, so homes that never saw rotation still frequently have roof damage worth inspecting.

Straight-line wind versus tornado damage

Adjusters and engineers distinguish the two by debris pattern. Tornado damage is convergent and scattered in multiple directions; straight-line (downburst) damage is uniformly directional, with trees and debris laid over the same way. This matters because both are covered as windstorm losses under standard homeowners policies, but documenting the correct event date strengthens the claim.

For roofs, the practical difference is small: both break shingle seals, lift edge metal, and drive rain into the deck. Inspect the same way — ridge caps, rakes, eaves, penetrations, and the attic.

Rebuilding stronger after a tornado

If your roof is being replaced anyway, the incremental cost of resilient detailing is low. A sealed roof deck, ring-shank nails, a fully adhered starter strip, metal drip edge on all edges, and hurricane straps at the rafter connections together move a house several categories up in wind resistance. Many insurers discount premiums for documented upgrades, and some states run grant programs for retrofits.

Beware of post-disaster contractor fraud. Verify licensing and insurance, refuse to sign an assignment of benefits you do not understand, and never hand over the insurance check before work begins.

Frequently asked questions