Tag Archives: Luzon

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.

Typhoon Kammuri Moves Closer to the Philippines

Typhoon Kammuri moved closer to the Philippines on Saturday.  At 10:00 p.m. EST on Saturday the center of Typhoon Kammuri was located at latitude 13.2°N and longitude 130.5°E which put it about 685 miles (1100 km) east of Manila, Philippines.  Kammuri was moving toward the west at 19 m.p.h. (29 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 appeared to be getting better organized on Saturday night.  Visible satellite images of Kammuri  suggested that an eye was clearing out at the center of the typhoon.  The inner end of a rainband wrapped around much of the developing eye.  There was still a gap on the northwestern side of the eyewall, but the gap was getting smaller.  Bands of showers and thunderstorms were revolving around the more organized core of Typhoon Kammuri.  Storms near the core were generating upper level divergence which was pumping mass away from the typhoon.

Winds to typhoon force extended out 50 miles from the center of circulation in the northern half of Typhoon Kammuri and out 25 miles in the southern side of the typhoon.  Winds to tropical storm force extended out 220 miles (355 km) from the center.  The Hurricane Intensity Index (HII) for Typhoon Kammuri was 13.9.  The Hurricane Size Index (HSI) was 17.0 and the Hurricane Wind Intensity Size Index (HWISI) was 30.9.

Typhoon Kammuri will move through an environment favorable for intensification during the next 36 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 will intensify and it could strengthen into the equivalent of a major hurricane.  Intensification could be more rapid once an eye and eyewall are full formed.

Typhoon Kammuri will move south of a high pressure system that extends from eastern Asia to the Western North Pacific Ocean.  The high will steer Kammuri toward the west during the next three days.  On its anticipated track Typhoon Kammuri could approach Catanduanes Islands and southeastern Luzon in about 36 hours.  Kammuri could be the equivalent of a major hurricane at that time.

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.

Typhoon Kammuri Turns Back Toward the Philippines

After jogging toward the north on Thursday, Typhoon Kammuri turned back toward the Philippines on Thursday night.  At 10:00 p.m. EST on Thursday the center of Typhoon Kammuri was located at latitude 14.1°N and longitude 138.0°E which put it about 1150 miles (1850 km) east of Manila, Philippines.  Kammuri was moving toward the west-northwest at 5 m.p.h. (8 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 strengthened gradually on Thursday.  The eye that was forming on Wednesday was not yet apparent on conventional infrared or visible satellite images.  Microwave satellite images still indicated that an eye was developing at the center of circulation.  So, high clouds from thunderstorms around the center of Kammuri must have been obscuring the eye on other satellite images.  The upper part of the circulation may have been tilted toward the north by southerly winds blowing around the western end of an upper level ridge.  Winds to typhoon force extended out 35 miles (55 km) from the center of circulation.  Winds to tropical storm force extended out 145 miles (230 km) from the center.

Typhoon Kammuri will move through an environment favorable for intensification during the next several days.  Kammuri will move over water in the Philippine Sea 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 will continue to intensify and it could strengthen into the equivalent of a major hurricane during the next 24 to 48 hours.  There could be a period of rapid intensification after the eye and eyewall are fully developed.

Typhoon Kammuri will move south of a high pressure system that extends from eastern Asia over the Western North Pacific Ocean.  The high will steer Kammuri toward the west during the next few days.  On its anticipated track Typhoon Kammuri could approach Luzon in about four days.  Kammuri could be the equivalent of a major hurricane when it reaches Luzon.

Tropical Storm Kalmaegi Brings Wind and Rain to Northern Luzon

Tropical Storm Kalmaegi brought wind and rain to northern Luzon on Tuesday night.  At 10:00 p.m. EST on Tuesday the center Tropical Storm Kalmaegi was located at latitude 17.0°N and longitude 121.2°W which put it about 70 miles (110 km) northeast of Baguio, Philippines.  Kalmaegi was moving toward the south-southwest at 15 m.p.h. (24 km/h).  The maximum sustained wind speed was 65 m.p.h. (105 km/h) and there were wind gusts to 80 m.p.h. (130 km/h).  The minimum surface pressure was 987 mb.

Former Typhoon Kalmaegi weakened to a tropical storm before it made landfall on the north coast of Luzon near Aparri.  Kalmaegi was under the western end of an upper level ridge.  The ridge produced strong southerly winds which blew toward the top of the circulation.  Those winds caused moderate vertical wind shear which weakened thunderstorms in the southern half of the circulation.  Drier air from Asia was pulled into the western part of the tropical storm.  The stronger thunderstorms were occurring northeast of the center of circulation.  Winds to tropical storm force extended out 100 miles (160 km) from the center in most parts of Tropical Storm Kalmaegi.  A high pressure system over Asia was contributing to a bigger pressure gradient in the northwestern quadrant of Kalmaegi and winds to tropical storm force extended out 200 miles (320 km) in that area.

Tropical Storm Kalmaegi was dropping locally heavy rain over parts of northern Luzon.  The heavy rain was creating the potential for flash floods.  Kalmaegi will be steered toward the southwest by the high pressure system over Asia. On its anticipated track the center of Tropical Storm Kalmaegi will pass near Baguio.  Kalmaegi will continue to weaken as it moves over northern Luzon.  It will move over the South China Sea northwest of Manila.  Tropical Storm Kalmaegi will continue to drop heavy rain over parts of Luzon and the flash flood threat will continue for several more days.

Elsewhere over the Western North Pacific Ocean, Tropical Storm Fung-wong developed east of Luzon on Tuesday night.  At 10:00 p.m. EST the center of Tropical Storm Fung-wong was located at latitude 16.3°N and longitude 127.8°E which put it about 425 miles (685 km) east-southeast of Aparri, Philippines.  Fung-wong was moving toward the northwest at 14 m.p.h. (22 km/h).  The maximum sustained wind speed was 40 m.p.h. (65 km/h) and there were wind gusts to 50 m.p.h. (80 km/h).  The minimum surface pressure was 1000 mb.  Tropical Storm Fung-wong is forecast to strengthen during the next 36 hours while it moves toward the Luzon Strait.

Tropical Storm Kalmaegi Almost a Typhoon Near Northern Luzon

Tropical Storm Kalmaegi was almost a typhoon as it neared northern Luzon on Sunday night.  At 10:00 p.m. EST on Sunday the center of Tropical Storm Kalmaegi was located at latitude 17.7°N and longitude 123.2°E which put it about 120 miles (195 km) east-southeast of Aparri, Philippines.  Kalmaegi was moving toward the northwest at 6 m.p.h. (10 km/h).  The maximum sustained wind speed was 70 m.p.h. (110 km/h) and there were wind gusts to 85 m.p.h. (135 km/h).  The minimum surface pressure was 984 mb.

Tropical Storm Kalmaegi was on the verge of strengthening into a typhoon on Sunday night.  The inner end of a band of showers and thunderstorms wrapped most of the way around the center of circulation and an eye appeared to be forming.  Bands of showers and thunderstorms were revolving around the center of Tropical Storm Kalmaegi.  Storms near the center were generating upper level divergence which was pumping mass away to the northeast of the tropical storm.  Winds to tropical storm force extended out 110 miles (175 km) from the center of circulation.

Tropical Storm Kalmaegi will move through an environment favorable for intensification for anther 12 to 24 hours.  Kalmaegi will move over water where the Sea Surface Temperature is near 29°C.  It will move under the western end of an upper level ridge.  The ridge will produce southerly winds which will blow toward the top of the circulation.  Those winds will cause some vertical wind shear, but the shear will not be strong enough to prevent intensification.  Tropical Storm Kalmaegi is likely to strengthen into a typhoon on Monday.

A ridge of high pressure will steer Tropical Storm Kalmaegi toward the northwest during the next 12 to 24 hours.  On its anticipated track the center of Tropical Storm Kalmaegi will make a landfall on the north coast of Luzon near Aparri in about 24 hours.  Kalmaegi will weaken after the center moves over land.  When Tropical Storm Kalmaegi weakens a strong northeasterly flow in the lower levels will steer the tropical storm back toward the southwest.  Tropical Storm Kalmaegi will bring gusty winds and it will drop locally heavy rain over northern Luzon.  Heavy rain could cause flash floods in some locations.

Tropical Storm Kalmaegi Strengthens East of Luzon

Tropical Storm Kalmaegi strengthened east of Luzon on Saturday night.  At 10:00 p.m. EST on Saturday the center of Tropical Storm Kalmaegi was located at latitude 15.7°N and longitude 125.2°E which put it about 300 miles (185 km) east-southeast of Aparri, Philippines.  Kalmaegi was moving toward the west-northwest at 5 m.p.h. (8 km/h).  The maximum sustained wind speed was 50 m.p.h. (80 km/h) and there were wind gusts to 65 m.p.h. (105 km/h).  The minimum surface pressure was 996 mb.

After meandering for days east of Luzon, Tropical Storm Kalmaegi began to strengthen on Saturday night.  Bands of showers and thunderstorms strengthened and wrapped around the eastern and northern sides of the center of circulation.   Storms near the center began to generate upper level divergence which pumped mass away to the northeast of the tropical storm.  Bands in the western half of the circulation still consisted primarily of showers and lower clouds.  Winds to tropical storm force extended out 120 miles (195 km) from the center.

Tropical Storm Kalmaegi will move through an environment favorable for intensification during the next 24 to 36 hours.  Kalmaegi will move over water where the Sea Surface Temperature is near 29°C.  It will move south of an upper level ridge over the Western North Pacific Ocean.  The ridge will produce easterly winds which will cause some vertical wind shear.  The shear will slow the rate of intensification, but it will not be strong enough to prevent intensification.  Tropical Storm Kalmaegi could strengthen into a typhoon during the next 36 hours.

The ridge over the Western Pacific Ocean will steer Tropical Storm Kalmaegi toward the northwest during the next 36 hours.  On its anticipated track Tropical Storm Kalmaegi could approach northern Luzon in about 36 hours.  Kalmaegi could be a typhoon by that time.

Elsewhere over the Western North Pacific Ocean, Typhoon Fengshen was speeding away from Iwo To.  At 10:00 p.m. EST on Saturday the center of Typhoon Fengshen was located at latitude 26.4°N and longitude 153.1°E which put it about 690 miles (1110 km) east-northeast of Iwo To.  Fengshen was moving toward the east at 31 m.p.h. (50 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 962 mb.

Typhoon Fengshen Strengthens into Equivalent of a Major Hurricane

Typhoon Fengshen strengthened into the equivalent of a major hurricane on Friday.  At 4:00 p.m. EST on Friday the center of Typhoon Fengshen was located at latitude 23.0°N and longitude 142.9°E which put it about 175 miles (285 km) south-southeast of Io To.  Fengshen was moving toward the north at 16 m.p.h. (26 km/h).  The maximum sustained wind speed was 125 m.p.h. (200 km/h) and there were wind gusts to 155 m.p.h. (250 km/h).  The minimum surface pressure was 949 mb.

Typhoon Fengshen strengthened quickly into the equivalent of a major hurricane on Friday.  An eye with a diameter of 25 miles (40 km) developed at the center of Fengshen.  The eye was surrounded by a ring of strong thunderstorms and the strongest winds were occurring in that ring of storms.  Bands of showers and thunderstorms were revolving around the core of Typhoon Fengshen.  Storms near the core were generating strong upper level divergence which was pumping mass away to the northeast of the typhoon.

The circulation around Typhoon Fengshen increased in size on Friday.  Winds to typhoon force extended out 40 miles (65 km) from the center of circulation.  Winds to tropical storm force extended out 140 miles (225) km from the center.  The Hurricane Intensity Index (HII) for Typhoon Fengshen was 23.6.  The Hurricane Size Index (HSI) was 11.2 and the Hurricane Wind Intensity Size Index (HWISI) was 34.8.

Typhoon Fengshen may have reached its peak intensity.  Fengshen will move over water where the Sea Surface Temperature is near 28°C.  So, there will be suffiicient energy in the upper levels of the Western Pacific to support intensification.  However, a large upper level trough southwest of Japan will move toward Fengshen.  The trough will produce strong southwesterly winds which will blow toward the top of the typhoon.  Those winds will cause moderate to strong vertical wind shear and the shear will cause Typhoon Fengshen to being to weaken.

A ridge of high pressure east of Typhoon Fengshen and the upper level trough southwest of Japan will interact to steer the typhoon toward the northeast during the weekend.  On its anticipated track the core of Typhoon Fengshen which contains the strongest winds will pass southeast of Iwo To.

Elsewhere over the Western North Pacific Ocean, Tropical Storm Kalmaegi moved very slowly toward northern Luzon.  At 4:00 p.m. EST on Friday the center of Tropical Storm Kalmaegi was located at latitude 16.0°N and longitude 125.9°E which put it about 345 miles (555 km) southeast of Aparri, Philippines.  Kalmaegi was moving toward the west at 2 m.p.h. (3 km/h).  The maximum sustained wind speed was 40 m.p.h. (65 km/h) and there were wind gusts to 50 m.p.h. (80 km/h).  The minimum surface pressure was 1002 mb.