FOIL.ARCHITECT // TELEMETRY SNAPSHOT
Grand Haven State Beach (Michigan)
GPS: 43.0578° N, -86.2568° E | ALT: 177m MSL | WATER: fresh | THERMAL: Massive wave setups generated during clean NW frontal systems.
LIVE NOWCAST: 2026-08-23 17:12 UTC
QUADRANT 01 // SESSION RATING INDEX
86%
EPIC
* SESSION RATING IS NOT JUST WIND RATING *
Consensus physics engine factoring gust factor, air density (20.8°C), and laminar flight envelope.
QUADRANT 02 // 24H WIND ENSEMBLE TREND
PEAK: 30 KTS
00:00
06:00
12:00
18:00
24:00
QUADRANT 03 // LIVE WIND & GEAR MATRIX
SPEED / GUSTS
15.1 / 21 kts
DIRECTION
312° NW
WING: 5.0 m²
FOIL: 1100 cm²
BOARD: 85 L
QUADRANT 04 // ATMOSPHERIC CONSENSUS
TEMP: 20.8°C
CLOUDS: 5%
PRECIP: 0 mm
LIFT SLI: 1.35
ENSEMBLE: OPEN-METEO / ECMWF / ICON-D2 / AROME / GFS
Spot Aerodynamic & Geographic Overview
A premier Great Lakes wind Mecca renowned for exceptional ocean-like wave riding and high-velocity wind conditions.
Thermal Wind Dynamics: Massive wave setups generated during clean NW frontal systems.