Marine Thunderstorm Wind — Lake Ponchartrain and Lake Maurepas, Gulf of Mexico

2024-08-15 · near Mid Lake Pontchartrain, Lake Ponchartrain and Lake Maurepas, Gulf of Mexico

Event narrative

The Weatherflow mesonet on the Lake Pontchartrain Causeway XPTN measured a thunderstorm wind gust of 41 mph or 36 knots.

Wider weather episode

A fairly typical summertime upper level pattern was in place with strong high pressure centered well west of the local area. That put southern Louisiana on the eastern periphery of this ridge in a region of northwestern upper level flow. That setup is often conducive for strong to severe thunderstorm development and what took place on August 15th. Thunderstorms initially developed in central Mississippi early afternoon. As the storms traveled southwestward, they moved into an environment with ample instability from strong daytime heating. The resultant cluster of storms organized into a line of strong to severe thunderstorms.

View location on OpenStreetMap → (30.1500, -90.1300)

Source: NOAA Storm Events Database, event_id 1213314. Narrative written by the NWS forecast office that issued the report.