Flash Flood · Puerto Rico

Heavy rainfall caused rapid rises along a tributary crossing PR-5516 in Adjuntas. Floodwaters overtopped a bridge located between Selecto Supermarket and the Sweet and Frozen business, making the roadway impassable and disrupting local travel. No injuries or fatalities were reported.

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.