Typhoon Jangmi Heading Toward Japan Typhoon Jangmi churned across the western Pacific Ocean in early June 2026, producing a nighttime view captured by the Visible Infrared Imaging Radiometer Suite (VIIRS) aboard a Joint Polar Satellite System satellite on May 30, 2026. Around that time, the typhoon produced sustained winds of 120 kilometers (75 miles) per hour, based on 1-minute averages reported by the Joint Typhoon Warning Center.