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

2023-01-22 · near Fernandina Nos, Altamaha Sd To Fernandina Beach Fl Out 20nm, Atlantic South

Event narrative

The St. Simons Island ASOS at McKinnon Field measured a wind gust of 52 mph.

Wider weather episode

A warm front lifted northward across SE GA during the morning and placed the entire forecast area within the warm sector ahead of an approaching pre-frontal squall line. Strong SSW speed shear was over the area with 0-6 km bulk shear 50-60 kts across SE GA to 40-50 kts southward across NE FL. Warm and unstable conditions pushed northward to near Waycross into the afternoon with ML CAPE 1000-1500 J/kg as the pre-frontal convection approached into the late afternoon and early evening. Strong to severe storms moved across the local area during the late afternoon and early evening producing wind damage and a couple of tornadoes in SE GA.

View location on OpenStreetMap → (31.1500, -81.3800)

Source: NOAA Storm Events Database, event_id 1068680. Narrative written by the NWS forecast office that issued the report.