Waterspout to Tornadic Landfall Simulator

Ground Wind Speed

82.0 mph

Vortex Regime

Marine Waterspout

Core Pressure Deficit

-18.4 hPa

Convergence Ratio

1.00x

✪ DRAG / TOUCH vortex to steer across ocean, surf zone & cabanas

Atmospheric & Coastal Controls

Sea Surface Temp (SST)23.5 °C

Low-Level Shear35 kts

Land Surface Roughness (z0)0.030 m

Core Diameter24 m

Structural Damage Telemetry

North Cabana Row (Canvas/Wood)100% Intact

Main Beach Club Pavilion100% Intact

Vortex Boundary Layer Physics

Frictional Drag0.0018 Cd

Dissipation Rate120 kJ/s

Est. IntensityEF-0 (Moderate)

Lofted Debris0 count

Meteorological Note

When a waterspout crosses the surf line at Atlantic Beach, smooth sea surface friction (z0=0.0002m) suddenly jumps to beach dunes and built structures (z0=0.03m). Frictional inflow decelerates tangential outer winds while inducing sudden core convergence and localized updraft burst before ground drag dissipates the vortex.