Typhoon Vongfong (2014)

Typhoon Vongfong (Ompong)
	Vongfong at peak intensity on October 8
Meteorological history
Formed	October 2, 2014
Post-tropical	October 14, 2014
Dissipated	October 18, 2014
Violent typhoon
	10-minute sustained (JMA)
Highest winds	215 km/h (130 mph)
Lowest pressure	900 hPa (mbar); 26.58 inHg
Category 5-equivalent super typhoon
	1-minute sustained (SSHWS/JTWC)
Highest winds	285 km/h (180 mph)
Lowest pressure	907 hPa (mbar); 26.78 inHg
Overall effects
Fatalities	9
Missing	1
Damage	$161 million (2014 USD)
Areas affected	Caroline Islands, Mariana Islands, Philippines, Taiwan, Japan, South Korea, Kamchatka Peninsula, Alaska
	IBTrACS
	Part of the 2014 Pacific typhoon season

Typhoon Vongfong, known in the Philippines as Super Typhoon Ompong, was the most intense tropical cyclone worldwide in 2014, and struck Japan as a large tropical system. It also indirectly affected the Philippines and Taiwan. Vongfong was the nineteenth named storm and the ninth typhoon of the 2014 Pacific typhoon season. Estimates assess damage from Vongfong to have been over US$160 million, mainly for striking mainland Japan. At least 9 people were killed along the path of the typhoon in those countries.

Both the JMA and the JTWC upgraded Vongfong to a tropical storm on October 3.^[1]^[2] Under low vertical wind shear and excellent outflow, Vongfong intensified into a typhoon east of Guam on October 5.^[3]^[4] Afterwards, subsidence and moderate to strong vertical wind shear caused the typhoon to struggle to intensify.^[5] On October 7, the PAGASA named the system Ompong, while it underwent rapid deepening owing to a TUTT cell.^[6] The JTWC then classified Vongfong as the sixth super typhoon of 2014, shortly before reaching peak intensity with a round eye late on the same day.^[7]^[8]

Maintaining peak intensity for over one day, Vongfong began to gradually weaken on October 9, because of an eyewall replacement cycle.^[9] On October 10, the structure of the typhoon decayed more, and it totally lost its eye feature on the next day when passing through Okinawa.^[10] Due to mid-latitude westerlies, Vongfong's low-level circulation center became partially exposed. The typhoon accelerated east-northeastward on October 12 and made landfall over Kyushu.^[11]^[12] The system continued passing through the main islands of Japan and weakened into a severe tropical storm on October 13, before it became extratropical on October 14.^[13]^[14]

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^ Cite error: The named reference jtwc_prog37 was invoked but never defined (see the help page).
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^ Cite error: The named reference kyushu_landfall was invoked but never defined (see the help page).
^ Cite error: The named reference rsmc_oct13 was invoked but never defined (see the help page).
^ Cite error: The named reference rsmc_oct14 was invoked but never defined (see the help page).

[rsmc_oct3-1] Cite error: The named reference rsmc_oct3 was invoked but never defined (see the help page).

[jtwc_prog02-2] Cite error: The named reference jtwc_prog02 was invoked but never defined (see the help page).

[jtwc_prog07-3] Cite error: The named reference jtwc_prog07 was invoked but never defined (see the help page).

[rsmc_oct5-4] Cite error: The named reference rsmc_oct5 was invoked but never defined (see the help page).

[jtwc_prog13-5] Cite error: The named reference jtwc_prog13 was invoked but never defined (see the help page).

[pagasa-6] Cite error: The named reference pagasa was invoked but never defined (see the help page).

[jtwc_prog20-7] Cite error: The named reference jtwc_prog20 was invoked but never defined (see the help page).

[rsmc_oct7-8] Cite error: The named reference rsmc_oct7 was invoked but never defined (see the help page).

[jtwc_prog28-9] Cite error: The named reference jtwc_prog28 was invoked but never defined (see the help page).

[jtwc_prog37-10] Cite error: The named reference jtwc_prog37 was invoked but never defined (see the help page).

[jtwc_prog38-11] Cite error: The named reference jtwc_prog38 was invoked but never defined (see the help page).

[kyushu_landfall-12] Cite error: The named reference kyushu_landfall was invoked but never defined (see the help page).

[rsmc_oct13-13] Cite error: The named reference rsmc_oct13 was invoked but never defined (see the help page).

[rsmc_oct14-14] Cite error: The named reference rsmc_oct14 was invoked but never defined (see the help page).

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