Flash Flood · Puerto Rico

Flash Flood March 26, 2026 · Guaynabo, 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

Flood waters affected a house in 124 Ponce de Leon and nearby areas. Standing water was observed inside the first floor of the house.

The wider storm

A moist and unstable weather pattern affected Puerto Rico from March 24 through March 28, 2026, as a mid- to upper-level trough interacted with abundant tropical moisture and favorable upper-level dynamics. Periods of heavy showers and thunderstorms developed across the island, resulting in flooding concerns, urban and small-stream flooding, and rapid rises on rivers and streams. The threat was enhanced by strong upper-level support associated with a strengthening jet stream and persistent moisture across the region.

Began near Guaynabo (18.4350, -66.1155).

Source: NOAA Storm Events Database, event 1328035. Narratives are written by the National Weather Service forecast office that issued the report.

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