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Marine Thunderstorm Wind · Gulf of Mexico
Marine Thunderstorm Wind June 20, 2026 · Lake Pontchartrain, Gulf of Mexico
Where the report was made, with tornadoes recorded within 15 miles over the years.
What the National Weather Service wrote
Mesonet site at Mid-Lake measured wind gust at 44mph.
The wider storm
A mid-level low pressure system associated with Post-Tropical Storm Arthur pushed slowly through the area resulting in several rounds of thunderstorms over the coastal waters. Some of these storms produced strong downburst winds over the waters resulting in several marine thunderstorm wind events.
Began near Mid Lake Pontchartrain Causeway - Xptn Weatherflow (30.2000, -90.1200).
Source: NOAA Storm Events Database, event 1345041. Narratives are written by the National Weather Service forecast office that issued the report.
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