Flash Flood — Guaynabo, Puerto Rico

2023-04-28 · near Guaynabo, Guaynabo, Puerto Rico

$40K

Property damage

Event narrative

A Grand Cherokee car was being swept by the flash flood near San Patricio, close to Church's Chicken fast food restaurant, and Oriental Bank.

Wider weather episode

A weak trough near the Leeward islands was maintaining a weak steering flow over the local islands. Instability aloft was increasing as mid level temperatures cool down. The combination of these factors, along with strong diurnal heating and enough moisture in the lower levels resulted in very strong showers and isolated thunderstorms over the area. Several reports of mudslides and flooding were received.

View location on OpenStreetMap → (18.4100, -66.1000)

Source: NOAA Storm Events Database, event_id 1085604. Narrative written by the NWS forecast office that issued the report.