・ Typhoon course
・ Characteristics of typhoon No. 14
① What happened
(2) Wind characteristics
How did you get the information on the evacuation?
・ Due to blackout: mission diagram
・ Wind damage: mission diagram
・ Damage caused by rain: figure from the report
・ Is another typhoon coming?
・ Autumn typhoons tend to approach Japan
Typhoon No. 14, which occurred at 3:00 am on Wednesday, September 14, became an extratropical cyclone off the coast of Sanriku at 9:00 am on Tuesday 20.
After its formation, Typhoon No. 14, which gradually formed a large cloudy area, overtook Yakushima while maintaining a large and extremely strong force, and landed in Kagoshima City, Kagoshima Prefecture. Subsequently, it landed in a total of 4 locations: around Yanagawa City, Fukuoka Prefecture, via Kyushu, near Izumo City, Shimane Prefecture and near Niigata City, Niigata Prefecture.
After its formation, Typhoon No. 14, which gradually formed a large cloudy area and became a large and violent force on the seas south of Japan, moved northwest and approached Kyushu. Subsequently, he passed through Yakushima maintaining a large and very strong force, and landed in Kagoshima City, Kagoshima Prefecture. Subsequently, it landed again in 3 locations: the Ariake Sea, near Yanagawa City, Fukuoka Prefecture, via Kyushu, near Izumo City, Shimane Prefecture, and near Niigata City, Fukuoka Prefecture. Niigata.
As the typhoon moved from western Japan to eastern and northern Japan, focusing on Kyushu, Chugoku and Shikoku, the typhoon caused storms in various places.
The Japanese Meteorological Agency has issued a special warning for storms, waves and storm surges for Kagoshima prefecture and a heavy rain emergency warning for Miyazaki prefecture. This is the first time since the start of business in 2013 that a special warning due to a typhoon or other factors has been issued outside of Okinawa prefecture.
In this typhoon, 50.9 m / s were observed in Yakushima, Kagoshima prefecture, and 50.4 m / s in Kamae, in Saiki city, Oita prefecture. Winds above 40 m / s blew in Kyushu and Shikoku, including 44.1 m / s in Karatsu City and 43.5 m / s in Kagoshima City, Kagoshima Prefecture, where the typhoon landed.
Due to this heavy rain, the Hirowatari River and Honjo River in Nichinan City, Miyazaki Prefecture, have reached flood danger level, and information about the danger of flooding has been announced in some places. In some areas of western Japan, information has been issued on the evacuation of “emergency safety assurance”, which is alert level 5 information.
west
Heavy rain close to 1000 mm
Looking at the total rainfall on September 15 (Thursday), 985.0 mm was observed at AMeDAS Shinmon in Misato city, Miyazaki prefecture, and more than 500 mm of heavy rain was observed mainly on the Pacific side of Kyushu and Shikoku.
It also strengthens when blowing back or away
One of the features is that after landing there were areas around the center where the atmospheric pressure gradient was mild and the surrounding area changed into a structure where the wind blows stronger. In the area where the center passed, the relatively light winds lasted for several hours, and when we started to let our guard down there was a tendency to blow harder again.
One of the characteristics of this area is that the southerly wind tends to get stronger towards the typhoon.
From 18 to 20 September we conducted a questionnaire among users of the “Weather News” app, and among those who replied that they had suffered damage due to this typhoon, almost 90% replied that they had suffered “wind damage” . doing.
(* Number of responses: 7,148. Response items: “No damage”, “Wind damage”, “Rain damage”, “Both damage”)
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