Flash Flood — Arroyo, Puerto Rico

2020-11-11 · near Arroyo, Arroyo, Puerto Rico

Event narrative

Emergency managers reported that Rio Maunabo went out of its banks, affecting Road PR-3 towards Patillas. Road was impassable.

Wider weather episode

Very deep tropical moisture pulled up by the circulation of Tropical Cyclone Eta as it was moving across Cuba and into Southern Florida moved over the area. As a result, environmental conditions were very favorable for multiple days of heavy shower activity. A tropical wave was also injected into Eta's moisture plume, further enhancing the moisture content across the local area between 11/10 and 11/11.

View location on OpenStreetMap → (18.0040, -65.9060)

Source: NOAA Storm Events Database, event_id 930376. Narrative written by the NWS forecast office that issued the report.