Debris Flow — Guaynabo, Puerto Rico

2025-09-27 · near Guaynabo, Guaynabo, Puerto Rico

Event narrative

Emergency managers reported a small landslide at PR-833 near Urb. La Lomita in Sector Los Filtros in Barrio Frailes.

Wider weather episode

The flooding threat increased as a robust tropical wave moved across the region. This wave combined with instability associated with an upper-level trough. As the wave departed, tropical moisture continued to flux into Puerto Rico. Showers and thunderstorms were numerous, causing flooding, landslide and wind damage.

View location on OpenStreetMap → (18.3812, -66.1146)

Source: NOAA Storm Events Database, event_id 1294809. Narrative written by the NWS forecast office that issued the report.