Flash Flood · Puerto Rico

Flash Flood April 17, 2026 · San Sebastian, Puerto Rico

$10K

Damage as recorded

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

Public reports indicated flooding in the parking lot of the Departamento de la Familia in San Sebastin. Water depths ranged from 8 inches to 1 foot, resulting in standing water across nearly the entire parking area. Most parking spaces were occupied by vehicles at the time of the flooding, creating hazardous conditions and limiting access to the facility.

The wider storm

An amplifying mid- to upper-level trough, combined with above-normal moisture, maintained an unstable, wet pattern. With previous rain left saturated soils and elevated rivers, heavy rainfall quickly lead to urban flooding, small stream flooding, river flooding, landslides and flash flooding. Significant flooding occurred in Las Piedras, particularly, where several houses where flooded and flash flooded following heavy rainfall.

Began near San Sebastian (18.3500, -67.0000).

Source: NOAA Storm Events Database, event 1332395. Narratives are written by the National Weather Service forecast office that issued the report.

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