FOIL.ARCHITECT // TELEMETRY SNAPSHOT
Montrose Beach (Chicago, IL)
GPS: 41.9654° N, -87.6382° E | ALT: 177m MSL | WATER: fresh | THERMAL: Strong summer lake breeze thermal effect activated on hot sunny days.
LIVE NOWCAST: 2026-10-13 10:48 UTC
QUADRANT 01 // SESSION RATING INDEX
26%
SUB-FOIL
* SESSION RATING IS NOT JUST WIND RATING *
Consensus physics engine factoring gust factor, air density (20.7°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
7.2 / 15.9 kts
DIRECTION
236° SW
WING: 6.5 m²
FOIL: 1550 cm²
BOARD: 105 L
QUADRANT 04 // ATMOSPHERIC CONSENSUS
TEMP: 20.7°C
CLOUDS: 0%
PRECIP: 0 mm
LIFT SLI: 1.62
ENSEMBLE: OPEN-METEO / ECMWF / ICON-D2 / AROME / GFS
Spot Aerodynamic & Geographic Overview
The most popular spot in Chicago on Lake Michigan, offering wide sandy beaches and highly consistent thermal winds.
Thermal Wind Dynamics: Strong summer lake breeze thermal effect activated on hot sunny days.