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

2025-06-10 · near Mid Mid Lake Pontchartrain Causeway - Xptn Weatherflow, Lake Ponchartrain and Lake Maurepas, Gulf of Mexico

Event narrative

The Weatherflow mesonet on Lake Pontchartrain XPTN measured a thunderstorm wind gust of 51 mph or 44 knots.

Wider weather episode

A north/south oriented trough axis extended from the Great Lakes to the Florida Panhandle and a ridge was centered over the Desert Southwest encompasses the rest of the country. That put the CWA right between both features. The frontal boundary associated with the trough stalled along the northern Gulf Coast. That front was the initial focal point for convection to begin developing early in the afternoon. That activity was been able to capitalize on very high instability. Quite robust thunderstorms produced multiple severe wind gusts.

View location on OpenStreetMap → (30.2000, -90.1200)

Source: NOAA Storm Events Database, event_id 1278244. Narrative written by the NWS forecast office that issued the report.