Marine Thunderstorm Wind — Altamaha Sd To Fernandina Beach Fl Out 20nm, Atlantic South

2023-08-09 · near Mckinnon Arpt, Altamaha Sd To Fernandina Beach Fl Out 20nm, Atlantic South

Wider weather episode

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.

View location on OpenStreetMap → (31.1500, -81.4000)

Source: NOAA Storm Events Database, event_id 1122768. Narrative written by the NWS forecast office that issued the report.