Source: Japan Meteorological Agency. (Details)Source: Japan Meteorological Agency. (Details)Unit: m/s. Source: Japan Meteorological Agency. (Details and Climatology)Forecast. Zonal wind (10hPa, 60°N) climatology and forecast (GFS & GEFS). The image is produced by Simon Lee; see his website, including further information on Stratosphere forecast. See other model products at climate.copernicus.eu.