Waterspout — Lake Ponchartrain and Lake Maurepas, Gulf of Mexico

2025-08-07 · near Mid Mid Lake Pontchartrain Causeway - Xptn Weatherflow, Lake Ponchartrain and Lake Maurepas, Gulf of Mexico

Event narrative

Photos of a thin waterspout near the causeway relayed on social media by the public.

Wider weather episode

A typical summertime pattern was in place across the region, with intense daytime heating and abundant low-level moisture leading to the development of numerous afternoon thunderstorms. The storms were primarily outflow-driven, producing locally strong and gusty winds. One storm produced a waterspout that developed along its outflow boundary over the coastal waters. Another storm generated a severe marine wind gust that was recorded at Lakefront Airport. No damage or injuries were reported.

View location on OpenStreetMap → (30.2000, -90.1900)

Source: NOAA Storm Events Database, event_id 1292989. Narrative written by the NWS forecast office that issued the report.