For people living in Guam and the Northern Mariana Islands, the beginning of July is another reminder of how quickly conditions can change in the western Pacific. Super Typhoon Bavi arrived as an exceptionally powerful storm, passing near the islands with damaging winds, heavy rainfall and dangerous coastal flooding. According to NASA, the cyclone reached its greatest strength while passing through the region, becoming the third Category 5 tropical cyclone of 2026.Satellite imagery taken during the night offered a spectacular view of the storm from space. Yet behind those images was a weather system that was causing real disruption on the ground, damaging infrastructure and adding to the challenges of recovery from the massive storm that hit just a few months earlier.
NASA’s VIIRS instrument captures stunning view of Super Typhoon Bavi
One of the most unusual views of Bavi came from a NASA-supported satellite observation taken shortly after midnight local time on July 6. The image shows the eye of the storm surrounded by a tightly arranged eyewall, with moonlight from above illuminating part of the cyclone.According to NASA, the image was collected by the Visible Infrared Imaging Radiometer Suite (VIIRS) aboard the NOAA-20 satellite. At that time, Bavi was near peak intensity. Several hours later, sight turned to Rota, one of the islands of the Northern Mariana.The satellite view highlighted how compact and well-defined the storm had become as it traveled westward over unusually warm ocean waters.
How El Nino conditions may have fueled Super Typhoon Bavi’s rapid intensification
Bavi became intense in an area where sea surface temperatures were around 30 °C. Warm water acts as fuel for tropical cyclones, providing the energy needed for storms to strengthen around the storm’s center.According to NASA, the storm reached super typhoon status on July 4 local time as it moved westward across the Pacific. By the time it approached Guam and the Northern Mariana Islands, sustained winds had reached about 290 kilometers per hour.Meteorologists are keeping a close eye on the 2026 Pacific season as El Niño conditions develop. As meteorologists cited by NASA noted, hurricanes that hit the Far East during El Niño years may spend more time over warmer waters before turning toward Asia, increasing their chances of reaching the highest intensity categories.
Super Typhoon Bavi has caused damage and flooding in Guam and the Northern Mariana Islands.
PC:NASA
While satellite images showed a remarkably organized storm, communities below it faced a much harsher reality. According to NASA, powerful winds downed power lines and poles, while flooding and storm debris affected roads on several islands. Buildings including water distribution infrastructure on Rota were also damaged.Emergency crews then spent several days responding. The U.S. Coast Guard worked to remove navigation hazards and help restore access to ports when sea conditions were safe. The recovery effort came just weeks after residents dealt with Super Typhoon Sinlaku, another devastating storm that hit the same region in April.
NASA tracks Super Typhoon Bavi as it heads toward Taiwan and southern Japan
By July 8, Bavi remained a severe typhoon despite showing signs of gradual weakening. Satellite imagery released by NASA shows the storm moving westward across the Philippine Sea, southeast of Taiwan.At that stage, maximum sustained winds were still estimated at about 250 kilometers per hour. Forecasts show the cyclone could begin to turn northwest, potentially affecting Taiwan, the Ryukyu Islands of southern Japan, and parts of mainland China.Although it was expected to weaken in the coming days, Bavi remained a powerful system capable of producing damaging weather far from the islands where it first made headlines. As forecasters continued to track its path, the storm emerged as one of the strongest tropical cyclones seen anywhere in the world during 2026.