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EF0 tornado · Puerto Rico

Tornado March 26, 2017 · Trujillo Alto, Puerto Rico

EF0
Rating
0.4 mi
Path length
100 yd
Path width
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 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

Brief tornado in Villa Andalucia, Trujillo Alto left several trees and power lines down as well as a few houses with structural damage.

The wider storm

A surface low pressure north of Hispanola induced a moist and convectively unstable air mass over Puerto Rico. This southerly flow interacted with the island topography enhancing the low-level convergence along and downwind of the Cordillera Central. Scattered showers began to develop during the early afternoon hours across the northern slopes of Puerto Rico. One of these showers collided with the sea breeze front over southeast portions of San Juan, giving way to a brief EF0 tornado/landspout that touched down between Villa Andalucia and Park Gardens, Rio Piedras at approximately 3 PM AST.

Began near Trujillo Alto (18.3830, -66.0312).

Source: NOAA Storm Events Database, event 678392. Narratives are written by the National Weather Service forecast office that issued the report.

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