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Marine Thunderstorm Wind · Atlantic South

Marine Thunderstorm Wind July 30, 2025 · Fernandina Beach To St Augustine Fl Out 20nm, Atlantic South

43 mph

Measured gust (37 kt)

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

The mesonet site XJAX measured a wind gust of 43 mph.

The wider storm

Hot and humid conditions continued under southwest steering flow. The combination of a moist and unstable airmass triggered diurnal storms, with sea breeze and boundary collisions focused near and east of the Highway 301 corridor into the early evening where storms moved offshore of the local Atlantic coast.

Began near Mayport Nas (30.3900, -81.4800).

Source: NOAA Storm Events Database, event 1279411. Narratives are written by the National Weather Service forecast office that issued the report.

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