EDEN-09
Weather Engine V3 — Polymarket Forecast Intelligence
API Endpoints
GET/api/healthEngine health check
POST/api/forecastGet forecast for lat/lon/date
POST/api/probabilityThreshold probability (above/below/range)
POST/api/precipitationPrecipitation probability
GET/api/regimeRegime change status all cities
GET/api/statsModel performance & cache stats
POST/api/observeRecord actual temp for bias correction
Model Stack
T1ECMWF IFS 0.25°Primary anchor — best global model
T1ECMWF AIFS 0.25°AI-based ECMWF variant
T2GFS SeamlessUS model, strong Americas
T2ICON SeamlessGerman model, strong Europe
T2JMA SeamlessJapanese model
T3GEM + MeteoFrance + CMADiversity ensemble models
T4HRRR CONUSUS short-range only (t+1/2)