Marine Thunderstorm Wind — Fernandina Beach To St Augustine Fl Out 20nm, Atlantic South
2025-07-30 · near Mayport Nas, Fernandina Beach To St Augustine Fl Out 20nm, Atlantic South
37 MG
Magnitude
Event narrative
The mesonet site XJAX measured a wind gust of 43 mph.
Wider weather episode
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.
View location on OpenStreetMap → (30.3900, -81.4800)
Source: NOAA Storm Events Database, event_id 1279411. Narrative written by the NWS forecast office that issued the report.