WPAC: JEBI - Post-Tropical

[NotoSans]

According to JMA, Jebi is the first typhoon since Yancy'93 making landfall over the Japanese main islands with sustained winds of 85KT+. Yancy made landfall over Kyushu with sustained winds of 95KT.

What landfall intensity does JMA have Goni '15 at? I thought that was an 85 or 90 kt landfall in west Kyushu.

JMA has a (IMO weird) definition for landfall different from other agencies - if a typhoon lands over a small island or peninsula then moves back over water within a short period of time, it would be classified as a "passage" rather than a "landfall".
For Goni, the 24/19Z best track position was classified as a "passage" over Kagoshima Prefecture, and the first "landfall" point was 24/21Z over the Kumamoto Prefecture. Thus, the official "landfall" intensity was 955mb/80kt, since the 24/19Z point was not considered a "landfall".
That also explains why all systems landing over the Ryukyu islands are not considered "landfall" - they are "passage" instead, according to JMA.
Again, a bit weird, but that's how the Japanese do their stuff.

[1900hurricane]

Good to know, thanks as always NotoSans.

[mrbagyo]

So by JMA's definition Meranti didnt make landfall but a passage only over Itbayat when the Eye swallowed it whole.
That's weird indeed Notosans. Thanks for that info

Anyway. Typhoon Bart 1999 was similar to Goni - 85 knots during a peninsular/island passage then 80 knots at landfall in Kyushu

[artist]

Gust above 50 m/s

Kansai Int'l Airport - 58.1m/s (SSW) - 13:38
Wakayama - 57.4 m/s (SSW) - 13:19
Muroto-Misaki - 55.30 m/s (W) - 11:53
Tomogashima - 51.8 m/s (S) - 13:14
Kumatori - 51.2 m/s (S) - 13:40
Hiwasa - 50.3 m/s (E) - 11:05

Pressure below or equal to 960 hpa

Muroto-Misaki - 955.3 hpa
Sumoto - 955.4 hpa
Kobe- 959.4 hpa
Kansai Intl Airport - 959.97 hpa

So an equivalent to a high end cat 2/ low end cat 3 major hurricane here in the US. I saw video of the damage. Glad you are ok.

[euro6208]

Devastating storm to a nation as prepare as Japan. Cars flipped over like toys. Just seeing people out and about is something.

[doomhaMwx]

LOW
Issued at 00:45 UTC, 5 September 2018

<Analysis at 00 UTC, 5 September>
Scale -
Intensity -
LOW
Center position N47°00' (47.0°)
E139°00' (139.0°)
Direction and speed of movement N 75 km/h (40 kt)
Central pressure 974 hPa

[doomhaMwx]

Powerful Typhoon Jebi triggered a historic storm surge of 3.29 meters in Osaka Prefecture in western Japan on Sept. 4, surpassing the previous high of 2.93 meters recorded in 1961 due to Typhoon Nancy, which killed 194 people.

https://mainichi.jp/english/articles/20 ... na/002000c

[mrbagyo]

Just a guesstimate, economic damage from this typhoon is probably more than 15 billion dollars.