Typhoon Jebi (2018)

Typhoon Jebi (Maymay)
Typhoon (JMA scale)
Category 5 super typhoon (SSHWS)
Jebi 2018-08-31 0332Z.jpg
Typhoon Jebi at peak intensity west of the Northern Mariana Islands on August 31
FormedAugust 27, 2018
DissipatedSeptember 7, 2018
(Extratropical after September 4)
Highest winds10-minute sustained: 195 km/h (120 mph)
1-minute sustained: 280 km/h (175 mph)
Lowest pressure915 hPa (mbar); 27.02 inHg
Fatalities17 total
DamageAt least $2.3 billion (2018 USD)
Areas affectedMariana Islands, Taiwan, Japan, Russian Far East
Part of the 2018 Pacific typhoon season

Typhoon Jebi, known in the Philippines as Typhoon Maymay, is considered to be the strongest typhoon to strike Japan since Typhoon Yancy in 1993.[1] Jebi formed as the twenty-first named storm of the annual typhoon season on August 28. It rapidly intensified into a typhoon on the following day and reached peak intensity on August 31 after striking the Northern Mariana Islands. Jebi initiated a slow weakening trend on September 2 and made landfall over Shikoku and then the Kansai region of Japan as a very strong typhoon on September 4.

Meteorological history

Map plotting the track and the intensity of the storm, according to the Saffir–Simpson scale

A low-pressure area formed near the Marshall Islands early on August 25.[2] It remained devoid of a low-level circulation center (LLCC) next day;[3] however, the system developed further on August 27 that both of the Japan Meteorological Agency (JMA) and the Joint Typhoon Warning Center upgraded it to a tropical depression,[4] based on persistent deep convection wrapping into a consolidating LLCC.[5] Early on August 28, the system was upgraded to a tropical storm with an international name Jebi assigned by JMA.[6] On the 29th of August, The JMA upgraded the storm to a typhoon after it developed an eye with a central dense overcast, and underwent rapid intensification, and then intensified into the third super typhoon and also the second Category 5 typhoon of the season.

On September 4, Jebi made its first landfall over the southern part of Tokushima Prefecture at around 12:00 JST (03:00 UTC),[7] crossed the Osaka Bay, made its second landfall over Kobe, Hyōgo Prefecture at around 14:00 JST (05:00 UTC),[8] and moved over Osaka and Kyoto prefectures before ultimately emerging into the Sea of Japan shortly after 15:00 JST (06:00 UTC).[9] Simultaneously, a cold front formed southwest of the typhoon, indicating the beginning of an extratropical transition.[10] On September 5, after JTWC issued a final warning at 00:00 JST (15:00 UTC),[11] Jebi was downgraded to a severe tropical storm at 03:00 JST (18:00 UTC) when it was located near the Shakotan Peninsula of Hokkaido.[12] The storm completely transitioned into a storm-force extratropical cyclone off the coast of Primorsky Krai, Russia shortly before 10:00 VLAT (09:00 JST, 00:00 UTC). Later, the extratropical cyclone moved inland.[13] The terrain of Khabarovsk Krai contributed to the steadily weakening trend as the system moved inland northwestward and then northward,[14] before the extratropical low eventually dissipated northeast of Ayan early on September 7.[15][16]