Two tropical cyclones are forecast to make direct landfall in the Kanto region of Japan on June 27, 2026 [1].
This rare weather event threatens to paralyze transportation and infrastructure in one of the world's most populous urban areas. Because the storms are expected to hit in close succession, railway operators are preparing for widespread disruptions to keep passengers safe.
Typhoon 8 is expected to arrive in the morning, followed by Typhoon 7 in the evening [1]. Forecasters note that the storms are increasing in speed. Masamitsu Morita said the typhoons are speeding up [1].
If both systems make landfall on the same day, it would be a first in recorded statistical history [1]. The potential for severe rain is already manifesting in other regions. In Owase, Mie Prefecture, rainfall has already exceeded 200 mm [2]. Meanwhile, Miyazaki has recorded hourly rainfall of 55.5 mm [3].
JR East and various private railway operators are monitoring the situation closely. Officials have warned of the possibility of all-day train suspensions and service halts across Tokyo, Chiba, and the Izu area [1].
While primary reports identify these as typhoons, some meteorological data suggests one system may still be a low-pressure system that originated as a tropical depression [3]. Despite the differing classifications, the risk of extreme precipitation remains the primary concern for the Kanto region.
“1日に2つの台風が上陸となれば、統計史上初めてのことになります。”
The potential for a double-landfall event represents an extreme meteorological anomaly for the Kanto region. Such a scenario complicates emergency management, as the second storm may hit while infrastructure is already compromised by the first. The decision by JR East to consider all-day suspensions highlights the high risk of derailment or flooding in the region's dense rail network.
