Flood — Monroe, Florida

2023-11-15 · near Marathon, Monroe, Florida

Event narrative

Heavy rainfall estimated by radar of 5 to 8 inches produced extensive poor drainage area flooding across Marathon and Key Colony Beach, with some streets with one to two feet depth of water. Several motor vehicles stalled due to flooding.

Wider weather episode

Strong low pressure over the eastern Gulf of Mexico resulted in a slow-moving pre-frontal trough focusing heavy convective rainfall over portions of the middle and upper Florida Keys. One EF0 tornado was observed on Big Pine Key in association with a small supercell which evolved in advance of the passing squall line. In additional, strong winds associated with a convectively-induced mesoscale low pressure system over the middle and upper Florida Keys resulted in moderate to major coastal flooding near the shores of Barnes and Card Sounds.

View location on OpenStreetMap → (24.6809, -81.0816)

Source: NOAA Storm Events Database, event_id 1149835. Narrative written by the NWS forecast office that issued the report.