Typhoon Jangmi, a formidable storm, has been making its way north-northwest over the Philippine Sea, bringing with it the threat of torrential rain to southern Japan. From late May into early June 2026, this slow-spinning cyclone has raised flooding concerns across the region.
Satellite Observations
The Visible Infrared Imaging Radiometer Suite (VIIRS) aboard the Suomi NPP satellite captured a nighttime image of Jangmi at approximately 16:40 Universal Time on May 30, which corresponds to 1:40 a.m. Japan Standard Time on May 31. At that moment, the typhoon exhibited sustained winds of 120 kilometers (75 miles) per hour, categorizing it as a Category 1 storm on the Saffir-Simpson hurricane wind scale.
Storm Features
The imagery revealed a detailed view of Jangmi’s eyewall and eye, which is notably large. According to Scott Braun, a research meteorologist at NASA’s Goddard Space Flight Center, the storm displayed some low-level rotation on its eastern side, leading to the formation of features known as mesocyclones. These features, partially obscured by high-level clouds, are typical for storms of this nature.
Progression of the Storm
The following day, on May 31, the NOAA-20 satellite provided a wider view of Jangmi at the same time of 16:40 Universal Time (1:40 a.m. Japan Standard Time on June 1). By this point, the storm had intensified, with sustained winds reaching 130 kilometers (80 miles) per hour. Despite the eye of the storm remaining south of Okinawa, its outer cloud bands had already begun to affect land.
Forecast and Impact
Forecasts indicated that Jangmi would closely approach Okinawa before turning northeast toward the Amami region around June 1-2. The storm was expected to continue delivering significant rainfall, particularly along Japan’s Pacific coast, as reported by various news outlets.
This event underscores the importance of satellite monitoring in understanding and predicting the behavior of tropical storms, providing vital data for preparedness and response efforts.
This article was produced by NeonPulse.today using human and AI-assisted editorial processes, based on publicly available information. Content may be edited for clarity and style.
