Typhoon No. 4 changed to an extratropical cyclone in Kyushu at 9 am earlier.
On the other hand, due to the influence of moist air from the south, rain is intensifying in Shikoku and Kinki, and there is a risk of heavy rain in eastern Japan and northern Japan over the 6th, so it is necessary to continue to be vigilant against sediment disasters and river flooding. ..
According to the Japan Meteorological Agency, Typhoon No. 4 landed near Sasebo City, Nagasaki Prefecture on the morning of the 5th, and changed to an extratropical cyclone in Kyushu at 9 am earlier.
On the morning of the 5th, the rain clouds that developed in Kyushu flowed in, and in Nagasaki, Fukuoka, and Kumamoto prefectures, it seems that heavy rain of 120 mm or more per hour fell in some places.
Also, in Kochi Prefecture, a "linear rain zone" was confirmed, in which rain clouds that developed in a belt shape continued from the night of the 4th to the early morning of the 5th. It exceeded 350 mm and became the most in the history of observation.
On the other hand, due to the effects of extratropical cyclones and the Pacific High in the east of Japan, moist air is flowing in from the south, and the atmosphere remains extremely unstable in western and eastern Japan.
During the hour until 9:00 am, heavy rain of 38.5 mm was observed at Yanase, Umaji Village, Kochi Prefecture, and 38 mm was observed with a rain gauge installed in Kumano City, Mie Prefecture.
Due to the rain so far, the risk of sediment-related disasters has become extremely high in Tokushima, Ehime, and Miyazaki prefectures, and there are areas where "earth and sand disaster warning information" has been announced.
It is a future outlook.
Due to the influence of moist air from the south, there is a risk of extremely heavy rain and heavy rain accompanied by lightning in various parts of western Japan and the Tokai region over the 6th, and there is also a risk of heavy rain in eastern Japan and northern Japan.
The amount of rain in 24 hours until the morning of the 6th
is expected to be
250 mm in Shikoku and Kinki,
200 mm in Tokai,
150 mm in northern Kyushu, and 120 mm in southern Kyushu and Kanto Koshin.
The Japan Meteorological Agency continues to be vigilant for sediment disasters, low land inundation, and river flooding, as well as for gusts such as strong winds, high waves, lightning strikes, and tornadoes.
From the 4th to the 5th, rain clouds developed even in areas away from the typhoon, and the heavy rain exceeded the expectations of the Japan Meteorological Agency.
The typhoon has changed to an extratropical cyclone, but please check the latest information such as the movement of rain clouds so that you can evacuate quickly if the situation worsens in the future.