Typhoon No. 6 Takes Unusual Autumn Route Toward Honshu

Typhoon No. 6 is approaching Honshu via an unusual "autumn route," bringing threats of heavy rain and strong winds to the Kanto region [1, 2].

The storm's atypical trajectory increases the risk of severe weather in densely populated areas, including the possibility of line-rain-band formation that could cause significant flooding and infrastructure damage.

According to forecasts, the typhoon was expected to closely approach Okinawa and Amami after midday on Sept. 2, 2024 ^[2]. The storm is projected to make its closest approach to the Kanto region around midday on Sept. 3, 2024 ^[2]. The system is impacting a wide area of the Pacific side, specifically affecting Okinawa, Amami, Kyushu, Shikoku, Kinki, Tokai, and Kanto ^[2].

Meteorologists attribute this specific path to the Pacific High and the flow of westerlies, which have progressed into a seasonal state faster than usual [1, 2]. This atmospheric shift has pushed the typhoon eastward, directing it toward the main island of Japan.

Weather forecaster Manami Sakaguchi said that typhoons approach Okinawa every two to three years during this period ^[2]. However, the current conditions are particularly concerning. Sakaguchi said, "This time, be cautious of the wind as well" ^[2].

The current weather pattern follows some characteristics of the 2023 season, where line-rain-bands caused extensive damage [1, 2]. Additionally, some areas have already experienced extreme heat, with temperatures exceeding 35 degrees Celsius for the first time this year ^[2].

Local authorities are urging residents in the projected path to monitor updates and prepare for potential evacuations as the storm moves toward the Kanto region [1, 2].