Flash Flood — Bayamon, Puerto Rico

2025-08-10 · near Bayamon, Bayamon, Puerto Rico

Event narrative

Emergency managers called to report an impassable primary road PR-177 (Lomas Verdes Avenue) near a Costco Wholesale store due to a sudden rise of Rio Bayamon (river).

Wider weather episode

During the afternoon of August 10th, the El Yunque streamer and western convection resulted in, reported, flooding over Bayamon, Aguada and Utuado. A surface high pressure over the Central Atlantic promoted E-ESE winds.

View location on OpenStreetMap → (18.3832, -66.1382)

Source: NOAA Storm Events Database, event_id 1292702. Narrative written by the NWS forecast office that issued the report.