Flood · Puerto Rico

Heavy rainfall produced a rapid rise in water levels at the Puente El Coqu low-water crossing along a tributary of the Guayans River. Floodwaters overtopped the crossing, creating hazardous travel conditions. No injuries, fatalities, or property damage 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.