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Typhoon Kammuri Brings Wind and Rain to Southern Luzon

Typhoon Kammuri brought wind and rain to southern Luzon and Mindoro on Tuesday.  At 10:00 a.m. EST on Tuesday the center of Typhoon Kammuri was located at latitude 13.4°N and longitude 114.9°E which put it about 115 miles (185 km) south-southwest 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 115 m.p.h. (185 km/h).  The minimum surface pressure was 976 mb.

Typhoon Kammuri made landfall on the coast of southeastern Luzon near Sorsogon and Legaspi on Nonday.  After making landfall, the eye of Kammuri passed over San Pascual on the northern end of Burias Island.  The center of Kammuri moved across the Sibuyan Sea and the core of the typhoon passed over Marinduque Island and northern Mindoro.  Rainbands in the northern half of Typhoon Kammuri produced strong winds and dropped heavy rain over southern Luzon.  There were reports of widespread power outages.  There were also reports of several deaths associated with the passage of Kammuri.

Typhoon Kammuri weakened slowly as the circulation passed over land.  Increased friction caused the wind speed to gradually decrease and mountains disrupted portions of the circulation.  The eastern side of the eyewall weakened and the eye was no longer apparent on infrared satellite images.  The strongest thunderstorms were occurring in bands west and north of the center of circulation.  Bands southeast of the center consisted primarily of showers and lower clouds.  Winds to typhoon force extended out 60 miles (95 km) from the center of circulation.  Winds to tropical storm force extended out 250 miles (400 km) from the center.

Conditions will improve over southern Luzon and Mindoro as Typhoon Kammuri moves farther away.  Kammuri could maintain its intensity over even strengthen slightly during the next 24 hours as it moves over the warm water in the South China Sea.  Typhoon Kammuri will move over water where the Sea Surface Temperature is near 29°C.  Kammuri will reach the eastern end of a surface high pressure system over eastern Asia in about 24 hours.  Strong northeasterly winds will blow around the eastern end of the high and those winds will create strong vertical wind shear as they blow under southwesterly winds in the upper levels.  The strong wind shear is likely to cause Typhoon Kammuri to weaken quickly in about a day or so.

A ridge over the Western North Pacific Ocean will steer Typhoon Kammuri toward the west for about another 24 hours.  On its anticipated track Kammuri will move farther away from the Philippines.  When Typhoon Kammuri reaches the area of more vertical wind shear and the typhoon weakens, it will be steered by winds closer to the surface.  The strong northeasterly winds in that part of the atmosphere will steer Kammuri toward the south-southwest later this week.

Major Typhoon Kammuri Makes Landfall on Southeastern Luzon

Major Typhoon Kammuri made landfall on southeastern Luzon near Sorsogon and Legaspi on Monday.  At noon EST on Monday the center of Typhoon Kammuri was located at latitude 13.2°N and longitude 123.6°E which put it about 10 miles (15 km) west of Legaspi, Philippines and about 230 miles (370 km) east-southeast of Manila.  Kamuri was moving toward the west at 11 m.p.h. (17 km/h).  The maximum sustained wind speed was 130 m.p.h. (210 km/h) and there were wind gusts to 160 m.p.h. (260 km/h).  The minimum surface pressure was 950 mb.

Typhoon Kammuri rapidly intensified into the equivalent of a major hurricane during the 12 hours prior to landfall on Monday.  A large eye with a diameter to 50 miles (80 km) developed at the center of Kammuri.  A thick ring of strong thunderstorms surrounded the eye and the strongest winds were occurring in that ring of storms.  Bands of showers and thunderstorms were revolving around the core of the typhoon.  Storms near the core generated strong upper level divergence which pumped mass away from the typhoon in all directions.  The removal of large amounts of mass allowed the surface pressure to decrease more quickly.

Typhoon Kammuri also grew larger as it got stronger.  Winds to typhoon force extended out about 50 miles (80 km) in most portions of Kammuri, but those strong winds extended out 90 miles (145 km) in the northwestern part of the circulation.  Winds to tropical storm force extended out 175 miles (280 km) in most parts of the circulation, but they extended out 300 miles (480 km) to the northwest of the center of Kammuri.  The Hurricane Intensity Index (HII) for Typhoon Kammuri was 25.1.  The Hurricane Size Index (HSI) was 25.4 and the Hurricane Wind Intensity Size Index (HWISI) was 50.5.  Typhoon Kammuri was capable of causing widespread major damage to southern Luzon.

Typhoon Kammuri will move south of a ridge of high pressure over the Western North Pacific Ocean.  The ridge will steer Kammuri toward the west-northwest during the next 36 to 48 hours.  On its anticipated track Typhoon Kammuri will move across southeastern Luzon and over the Sibuyan Sea during the next few hours.  The center of Kammuri is forecast to pass south of Manila in 18 to 24 hours.

Typhoon Kammuri will weaken slowly as it moves across southeastern Luzon.  Kammuri will bring strong winds and heavy rain to southern Luzon.  Typhoon Kammuri will also have a big impact on Burias, Marinduque Island and Mindoro.  Kammuri could produce winds to near typhoon force around Manila.  Typhoon Kammuri is likely to cause major damage around Legaspi.  Locally heavy rain could produce flash floods in numerous locations.  Kammuri could cause serious damage around Manila.

Typhoon Kammuri Strengthens As It Nears Southeast Luzon

Typhoon Kammuri strengthened as it neared southeast Luzon on Sunday night.  At 10:00 p.m. EST on Sunday the center of Typhoon Kammuri was located at latitude 13.0°N and longitude 126.0°E which put it about 385 miles (625 km) east- southeast of Manila, Philippines and about 160 miles (260 km) east of Legaspi.  Kammuri was moving toward the west at 15 m.p.h. (24 km/h).  The maximum sustained wind speed was 105 m.p.h. (165 km/h) and there were wind gusts to 125 m.p.h. (200 km/h).  The minimum surface pressure was 959 mb.

Typhoon Kammuri strengthened on Sunday.  An ellipitical eye with a mean radius of 30 miles (50 km) cleared out at the center of circulation.  A ring of strong thunderstorms surrounded the eye and the strongest winds were occurring in that ring of storms.  Bands of showers and thunderstorms were revolving around the core of Kammuri.  Storms near the core were generating upper level divergence which was pumping mass away from the typhoon.  The removal of mass allowed the surface pressure to decrease.

The wind field around Typhoon Kammuri became more symmetrical on Sunday.  Winds to typhoon force extended out 50 miles (80 km) from the center of circulation.  Winds to tropical storm force extended out 180 miles (290 km) from the center.  The Hurricane Intensity Index (HII) was 17.8.  The Hurricane Size Index (HSI) was 19.3 and the Hurricane Wind Intensity Size Index (HWISI) was 37.1.  Typhoon Kammuri was capable of causing serious damage.

Typhoon Kammuri will move through an environment favorable for intensification during the next 12 hours.  Kammuri will move over water where the Sea Surface Temperature is near 29°C.  It will move through a region where the upper level winds are weak and there will be little vertical wind shear.  Typhoon Kammuri could strengthen into the equivalent of a major hurricane before it reaches southeastern Luzon.  Kammuri will start to weaken after the center moves over land.

Typhoon Kammuri will move south of a high pressure system over the Western North Pacific Ocean.  The high will steer Kammuri toward the west during the next several days.  On its anticipated track the center of Typhoon Kammuri will pass between Samar and Catanduanes Island before making landfall near Sorsogon on southeast Luzon.  The center of Kammuri will pass near Legaspi, Tabaco and Ligao.

Typhoon Kammuri will be capable of causing major damage in the Philippines.  Kammuri will bring strong winds to southeast Luzon.  Typhoon Kammuri could also produce winds to near typhoon force in Virac on Catanduanes Island.  Kammuri could produce a storm surge of up to 10 feet (3 meters) in locations where the wind blows water toward the coast.  Typhoon Kammuri will drop locally heavy rain over southern Luzon.  Flash floods could occur, especially in areas of steeper slopes.