Typhoon Kammuri Churns West Over Philippine Sea

Typhoon Kammuri churned westward over the Philippine Sea on Friday night.  At 10:00 p.m. EST on Friday the center of Typhoon Kammuri was located at latitude 13.9°N and longitude 135.7°E which put it about 1015 miles (1640 km) east of Manila, Philippines.  Kammuri was moving toward the west at 13 m.p.h. (20 km/h).  The maximum sustained wind speed was 90 m.p.h. (145 km/h) and there were wind gusts to 110 m.p.h. (175 km/h).  The minimum surface pressure was 970 mb.

Typhoon Kammuri exhibited few changes on Friday.  The eye and eyewall were still not fully formed.  The tops of strong thunderstorms near the eye were obscuring the center of circulation on conventional satellite images.  Many of the stronger thunderstorms were occurring in bands in the western half of the circulation.  Bands in the eastern half of Kammuri consisted of showers and lower clouds.  Storms near the center of circulation were generating strong upper level divergence which was pumping mass away from the typhoon.

The circulation around Typhoon Kammuri did increase in size on Friday.  Winds to typhoon force extended out 50 miles (80 km).  Winds to tropical storm force extended out 230 miles (370 km) from the center.  The Hurricane Intensity Index (HII) for Typhoon Kammuri was 13.9.  The Hurricane Size Index (HSI) was 18.8 and the Hurricane Wind Intensity Size Index (HWISI) was 32.7.

Typhoon Kammuri will move through an environment favorable for intensification during the next two to three days.  Kammuri will move over water where the Sea Surface Temperature is near 29°C.  It will move through an environment where the upper level winds are weak and there will be little vertical wind shear.  Typhoon Kammuri will intensify and it could strengthen into the equivalent of a major hurricane.  A period of more rapid intensification could occur once an eye and eyewall are fully formed.

Typhoon Kammuri will move south of a high pressure system over the Western North Pacific Ocean.  The high will steer Kammuri toward the west.  On its anticipated track Typhoon Kammuri could approach Luzon in about 72 hours.  Kammuri could be the equivalent of a major hurricane when it approaches Luzon.

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