Home / Atlantic South / Altamaha Sd To Fernandina Beach Fl Out 20nm

Marine Thunderstorm Wind · Atlantic South

Marine Thunderstorm Wind August 9, 2023 · Altamaha Sd To Fernandina Beach Fl Out 20nm, Atlantic South

45 mph

Measured gust (39 kt)

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

The wider storm

Severe thunderstorms developed into the afternoon and evening as a frontal zone settled southward across SE GA and an impulse moved across the front. Significant heat and surface moisture in addition to steepening lapse rates ahead of the mid-level impulse created volatile surface-based instability which supported severe downbursts/outflows (50-70 mph) and hail. Given the near alignment of steering flow and the initiating boundary, the potential for waves or training convection created a flood threat as well.

Began near Mckinnon Arpt (31.1500, -81.4000).

Source: NOAA Storm Events Database, event 1122768. Narratives are written by the National Weather Service forecast office that issued the report.

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