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Marine Thunderstorm Wind — Fernandina Beach To St Augustine Fl Out 20nm, Atlantic South

2025-05-29 · near Fernandina Nos, Fernandina Beach To St Augustine Fl Out 20nm, Atlantic South

37 MG

Magnitude

Event narrative

The Airport Weather Observing Station at the

Fernandina Beach Municipal Airport recorded

a peak wind gust of 43 mph as thunderstorms

moved through.

Wider weather episode

A mid-level shortwave trough developed an MCS that lifted east- northeastward through the day and across SE GA during peak heating. Continued SW flow increased moisture levels to above average with PWATs mainly in the 1.75-2 inch range. The combination of a moist, moderately unstable airmass and additional lift from the passing shortwave enhanced convection across SE GA and along the sea breeze merger along the Atlantic

coast. SPC had a Slight Risk (level 2 of 5) for SE GA. Strong to locally severe storm occurred during the afternoon into the evening with a confirmed tornado in St. Johns County.

View location on OpenStreetMap → (30.6200, -81.4700)

Source: NOAA Storm Events Database, event_id 1260215. Narrative written by the NWS forecast office that issued the report.