Typhoon No. 28 forms as hurricane crosses date line into Japan's watch

Typhoon No. 28 formed on October 5, appearing suddenly without prior tropical depression warnings, as it originated as a hurricane in the eastern Pacific that crossed the International Date Line into Japan's monitoring area. The Japan Meteorological Agency (JMA) reported that the system, previously tracked by U.S. agencies as a hurricane near the Midway Islands, became Typhoon No. 28 upon entering JMA's designated zone (100°E to 180°E). This "cross-border typhoon" marks the first since Typhoon Dora in 2023. The World Meteorological Organization divides tropical cyclone monitoring regions, with JMA handling the northwest Pacific and U.S. agencies covering the central Pacific east of 180°E. Typhoon No. 28, maintaining very strong intensity, is moving west near the Midway Islands, highlighting the international framework for typhoon monitoring.