EF0 tornado in St. Lawrence County, New York

Tornado May 29, 2026 · St. Lawrence County, New York

EF0

Rating

0.1 mi

Path length

40 yd

Path width

$5K

Damage as recorded

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The path drawn at its surveyed width of 40 yards (0.02 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What EF0 means. On the Enhanced Fujita scale, EF0 is light damage: shingles and siding peeled, gutters torn, branches broken, consistent with estimated gusts of 65–85 mph. The rating comes from a survey of the worst damage after the storm, not from a wind measurement, so it says as much about what the tornado hit as about how strong it was.

What the National Weather Service wrote

Public reported a tornado between North Hammond and Brier Hill, New York. Video indicates the EF-0 tornado touched down in the nearby corn field and toppled an apple tree and lifted a well cover into a window of a barn.

The wider storm

Unseasonably strong surface tracks NW to SE across Ontario, northern NY and into New England during the afternoon and evening of May 29th.

Began near North Hammond (44.4959, -75.7180).

Source: NOAA Storm Events Database, event 1329066. Narratives are written by the National Weather Service forecast office that issued the report.

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