Flash Flood — San Juan, Puerto Rico

2024-09-20 · near San Juan, San Juan, Puerto Rico

Event narrative

A car was stranded at Avenue Ponce de Leon due to flood waters.

Wider weather episode

The proximity of an upper level trough, along with an area of enhanced moisture, very light winds and strong heating resulted in explosive convection developing over Puerto Rico. The thunderstorms produced very heavy rainfall, lightning, gusty winds, and even hail. Flooding and landslides were reported in several areas in Puerto Rico. Water surges along rivers were common, with some rivers even reaching flood stage.

View location on OpenStreetMap → (18.4305, -66.0590)

Source: NOAA Storm Events Database, event_id 1216754. Narrative written by the NWS forecast office that issued the report.