Tropical Storm Yagi (2018)

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Tropical Storm Yagi (Karding)
Tropical storm (JMA scale)
Tropical storm (SSHWS)
Yagi 2018-08-12 0240Z.jpg
Tropical Storm Yagi approaching China on August 12, 2018
FormedAugust 6, 2018 (2018-08-06)
DissipatedAugust 16, 2018 (2018-08-16)
(Remnant low after August 15, 2018 (2018-08-15))
Highest winds10-minute sustained: 75 km/h (45 mph)
1-minute sustained: 100 km/h (65 mph)
Lowest pressure990 hPa (mbar); 29.23 inHg
Fatalities7
Damage$365 million (USD)
Areas affectedChina, Taiwan, Philippines, and Korea
Part of the 2018 Pacific typhoon season

Tropical Storm Yagi, also known as Tropical Storm Karding in the Philippines, was a damaging tropical storm that impacted Philippines from enhanced southwest monsoon and China.

Meteorological history[]

Map plotting the storm's track and intensity, according to the Saffir–Simpson scale
Map key
Saffir–Simpson scale
  Tropical depression (≤38 mph, ≤62 km/h)
  Tropical storm (39–73 mph, 63–118 km/h)
  Category 1 (74–95 mph, 119–153 km/h)
  Category 2 (96–110 mph, 154–177 km/h)
  Category 3 (111–129 mph, 178–208 km/h)
  Category 4 (130–156 mph, 209–251 km/h)
  Category 5 (≥157 mph, ≥252 km/h)
  Unknown
Storm type
▲ Extratropical cyclone / Remnant low / Tropical disturbance / Monsoon depression

A tropical disturbance had persisted towards the southwest of Iwo To on August 1.[1] After the course of five days, the system finally strengthened into a tropical depression by the JMA, with the JTWC following suit several hours later (designating it as 18W).[2] The PAGASA also began issuing bulletins to the system, locally assigning the name Karding. Karding maintained its intensity as a tropical depression due to moderate to strong easterly shear, despite persistent convection surrounding the system.[3] By August 8, a METOP-A ASCAT image showed that the system had winds of 35 knots, hence the JTWC upgrading it to a tropical storm.[4] The JMA around the same time did the same, naming it Yagi. Within the next day, Yagi curved towards the northwest while continuously battling shear as it struggled to intensify. Though by 12:00 UTC of August 11, the JMA considered that Yagi reached its peak strength with 10-minute winds of 75 km/h (45 mph) and a minimum pressure of 990 hPa.

The JTWC declared that Yagi reached winds of 85 km/h (50 mph) on 12:00 UTC of August 12 after the storm had consolidated further with an improved structure.[5] Yagi made landfall shortly thereafter over Wenling, in Taizhou of Zhejiang, China, at around 23:35 CST (15:35 UTC) on August 12.[6] By 21:00 UTC of that day, the JTWC issued their final advisory on Yagi,[7] but continued to track it until it weakened further into a tropical depression early on August 13.[8] The JMA did the same on 06:00 UTC of August 13, but continued to tracked it until it became an extratropical system on August 15.

Impact[]

Although Yagi (Karding) didn't make landfall in the Philippines, the storm enhanced the southwest monsoon which brought extreme flooding towards many regions within the country. According to the NDRRMC, 5 people died along with ₱996 million (US$19 million) worth of damages.[9] In East China, Yagi killed a total of 3 people and total damages were counted to be CN¥2.51 billion (US$367 million).[10]

References[]

  1. ^ "Archived copy". Archived from the original on 2018-08-01. Retrieved 2018-08-01.CS1 maint: archived copy as title (link)
  2. ^ "Tropical Depression 18W (Eighteen) Warning Nr 001". Joint Typhoon Warning Center. August 6, 2018. Archived from the original on August 11, 2018.
  3. ^ "Prognostic Reasoning for Tropical Depression 18W (Eighteen) Warning Nr 03". Joint Typhoon Warning Center. August 7, 2018. Archived from the original on August 14, 2018.
  4. ^ "Prognostic Reasoning for Tropical Storm 18W (Yagi) Warning Nr 07". Joint Typhoon Warning Center. August 8, 2018. Archived from the original on August 14, 2018.
  5. ^ "Prognostic Reasoning for Tropical Storm 18W (Yagi) Warning Nr 24". Joint Typhoon Warning Center. August 12, 2018. Archived from the original on August 14, 2018.
  6. ^ 中央气象台12日23时40分发布台风登陆消息 (in Chinese). National Meteorological Center of CMA. August 12, 2018. Archived from the original on August 12, 2018. Retrieved August 12, 2018.
  7. ^ "Tropical Storm 18W (Yagi) Warning Nr 025". Joint Typhoon Warning Center. August 12, 2018. Archived from the original on August 13, 2018.
  8. ^ "Archived copy". Archived from the original on 2018-08-17. Retrieved 2018-08-18.CS1 maint: archived copy as title (link)
  9. ^ "Global Catastrophe Recap August 2018" (PDF). Archived (PDF) from the original on September 7, 2018. Retrieved September 7, 2018.
  10. ^ CMA (December 4, 2018). Member Report: China (PDF). ESCAP/WMO Typhoon Committee. ESCAP/WMO Typhoon Committee. pp. 1–2. Archived from the original (PDF) on December 4, 2018. Retrieved December 4, 2018.

External links[]

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