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EF1 tornado in Bronx County, New York

Tornado July 25, 2010 · Bronx County, New York

EF1
Rating
0.9 mi
Path length
100 yd
Path width
7
Injuries
$150K
Damage as recorded
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 100 yards (0.06 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What EF1 means. On the Enhanced Fujita scale, EF1 is moderate damage: roofs badly stripped, mobile homes pushed off foundations or overturned, windows broken, consistent with estimated gusts of 86–110 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

The tornado touched down on the grounds of the Hebrew Home for the Aged along the east bank of the Hudson River west of Palisade Avenue in Riverdale. High winds flattened a flag pole, downed trees and snapped and sheared off many tree tops. A few trees crashed through first floor windows that caused them to shatter resulting in 7 minor injuries. On the south side of the building, large trees were totally stripped of their canopies and one became a projectile as it was wedged between an upstream tree. An eyewitness account at this location stated that he saw funnel clouds develop upstream over the Hudson as the thunderstorm approached.

Several eyewitnesses along the southeast path of this storm stated that they saw clouds and debris swirl in white out conditions as many tree tops were snapped and sheared off. Significant damage occurred along West 254th Street northwest across Netherlands and Arlington Streets, where at least one residential roof was damaged west of 254th Street.

The wider storm

A strong cold front tracking through the region produced severe thunderstorms across the region, including a tornado in the Bronx.

Began near Spuyten Duyvil (40.9100, -73.9100).

Source: NOAA Storm Events Database, event 253528. Narratives are written by the National Weather Service forecast office that issued the report.

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