About SAIL
SAIL (Surface Atmospheric Intelligence Layer) delivers hyperlocal wind predictions for the Southern California coast through multi-modal sensor fusion and physics-informed machine learning.
Our Mission
Traditional weather forecasts provide regional predictions at 3-25 kilometer resolution. But coastal wind patterns vary dramatically over distances of just a few hundred meters due to thermal effects, terrain interactions, and marine layer dynamics.
SAIL bridges this gap by fusing multiple data streams—numerical weather predictions, real-time observations, and novel derived sources—to create sub-kilometer wind intelligence. Our physics-informed approach ensures predictions respect atmospheric constraints like thermal internal boundary layers and roughness transitions.
Whether you're planning a sailing race, choosing a surf spot, or scheduling drone operations, SAIL provides the hyperlocal accuracy you need.
Data Sources
NWP Models
HRRR
3km hourly forecasts from NOAA
GFS
25km 6-hourly extended forecasts
WeatherFlow WRF
1km Beta-WRF highest resolution
Surface Observations
MesoWest/Synoptic
Real-time weather station network
NDBC Buoys
Marine buoy observations
WeatherFlow Tempest
Sonic anemometer stations
Novel Sources
PurpleAir Pressure
Geostrophic wind derivation
ADS-B Aircraft
Wind extraction from flight data
Camera Vision
Beaufort scale estimation (planned)
Technology
Fusion Engine
Weighted average + Ensemble Kalman Filter
Physics Constraints
Coastal PINN for TIBL modeling
Bias Correction
Exponential-weighted real-time learning
Uncertainty
Gaspari-Cohn localization + inflation
Open Source
SAIL is built with open-source technologies and leverages publicly available data sources. Our fusion algorithms and PINN implementations are designed for transparency and reproducibility.
Current Coverage
Newport to Cabrillo Domain
Bounds
33.59°N - 33.78°N
118.30°W - 117.88°W
Size
~38 km × 21 km
Resolution
100m target
Locations
16 forecast points
Key locations include Newport Jetty (The Wedge), Huntington Beach Pier, Seal Beach Pier, Long Beach Harbor, and Cabrillo Beach.
Coming Soon: Santa Monica Bay domain (Marina del Rey to Malibu) and Channel Islands coverage for offshore sailing.
Get in Touch
SAIL is under active development. We welcome feedback, feature requests, and collaboration opportunities.