Thursday, July 16, 2015

Tropical Storm Nangka Update #4

Issued (04 UTC) 12pm PhT 071715

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Nangka has weakened to a Tropical Storm after making landfall in Japan late last night. The system is beginning to exit into the Sea of Japan and was last located approximately 200km northwest of Osaka. Maximum sustained winds are down to 75kph with gusts of up to 95kph. TS Nangka is moving north northeast at 20kph.

IR Image from NRLMRY

Nangka made landfall as a Category 1 Typhoon near the city of Muroto in Shikoku Island at about 10:20pm last night (Japan Time). Winds of up to 160kph were recorded along the coast, along with heavy rains that dropped nearly 80mm (3 inches) in just one hour. Nangka then lost strength as it crossed into the Chugoku Region Western Honshu. The center of circulation is beginning to move into the Sea of Japan and we expect continued weakening as Nangka encounters increasingly hostile environment.

Radar Image from JMA

 With that said, residual light to moderate rains are still impacting parts of Shikoku and Honshu, particularly the Chugoku and Kansai (Kinki) Regions. We're expecting an additional 50 to 100mm of rain to fall through the afternoon and evening hours. Precipitation will slowly move northeastward and will soon push towards the Chubu Region.

For the latest radar images and weather warnings for Japan, please click HERE (JMA Website)

Tropical Storm Nangka will continue moving across the Sea of Japan today and should weaken to a Tropical Depression by tonight. Increasing wind shear and abundant dry air will continue to induce weakening and we might see the system dissipating by tomorrow as it moves into the Tohoku Region of Northern Honshu. Expect rains to affect parts of the island through tomorrow as well.

We'll have another update later tonight.

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