PEAK VELOCITY: 3.4 kts
DRIFT HEADING: 168° SSE
PASS DEPTH: 8.5 m
ACTIVE PARTICLES: 64
LEGEND:
Subaerial Sandbar
Shallow Shoal (<2m)
Deep Pass Channel (>8m)
Tidal Flow Streamlines
Swimmer / Drift Particle
Click anywhere on chart to release drift parcel
Hydrodynamic Controls
Ebb Tide (Spring Peak)
12 kts
190° (SSW)
8.5 m
Kinematics & Telemetry
Primary Hazard
Pass Ebb Funnel
Escape Difficulty
High
Max Current
3.4 kts
Dist from Shore
240 m
⚠️ CRITICAL ADVISORY
Swim perpendicular to pass jet toward shallow sandbar spit (East-Northeast). Do not fight offshore funnel vector.
Why Horn Island Waters Deceive: Wilderness barrier islands create narrow bathymetric passes where massive sound-volume exchanges during ebb tides. Outwardly calm, glassy surfaces disguise 3+ knot subsurface laminar jets capable of sweeping swimmers offshore in minutes.