Tag Archives: Legazpi

Tropical Storm Doksuri Forms East of the Philippines

Tropical Storm Doksuri formed east of the Philippines on Thursday night. At 11:00 p.m. EDT on Thursday the center of Tropical Storm Doksuri was located at latitude 14.0°N and longitude 133.0°E which put it about 620 miles (1000 km) east of Legazpi, Philippines. Doksuri was moving toward the north-northwest at 9 m.p.h. (15 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.

A low pressure system over the Western North Pacific Ocean east of the Philippines strengthened on Thursday night and the Japan Meteorological Agency designated the system as Tropical Storm Doksuri. The circulation around Tropical Storm Doksuri exhibited more organization on satellite images. More thunderstorms developed in bands revolving around the center of Doksuri’s circulation. Storms near the center of circulation began to generate upper level divergence that pumped mass away from the tropical storm.

Tropical Storm Doksuri will move through an environment favorable for intensification during the next 48 hours. Doksuri will move over water where the Sea Surface Temperatures are near 30˚C. It will move under the middle of an upper level ridge east of the Philippines. The upper level winds are weak near the middle of the ridge and there will be little vertical wind shear. Tropical Storm Doksuri will intensify during the next 48 hours. Doksuri is likely to strengthen to a typhoon during the weekend.

Tropical Storm Doksuri will move around the southwestern side of a subtropical high pressure system over the Western North Pacific Ocean. The high pressure system will steer Doksuri slowly toward the northwest during the next 48 hours. On its anticipated track, Tropical Storm Doksuri will move closer to northern Luzon.

Tropical Storm Nalgae Forms East of the Philippines

Tropical Storm Nalgae formed over the Western North Pacific Ocean east of the Philippines on Thursday. At 11:00 a.m. EDT on Thursday the center of Tropical Storm Nalgae was located at latitude 12.2°N and longitude 129.7°E which put it about 410 miles (660 km) east of Legazpi, Philippines. Nalgae was moving toward the west at 6 m.p.h. 105 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.

An area of low pressure over the Western North Pacific Ocean east of the Philippines strengthened on Thursday and the Japan Meteorological Agency designated the system as Tropical Storm Nalgae. The distribution of thunderstorms around Tropical Storm Nalgae was asymmetrical. Thunderstorms were occurring in bands in the southern half of Nalgae’s circulation. Bands in the northern half of the circulation consisted primarily of showers and lower clouds. Tropical Storm Nalgae was moving under the southern part of an upper level ridge over the Western North Pacific. The ridge was producing northeasterly winds that were blowing toward the top of Nalgae’s circulation. Those winds were causing moderate vertical wind shear and the wind shear was causing the asymmetrical distribution of thunderstorms.

Tropical Storm Nalgae will move through an environment favorable for intensification during the next 36 hours. Nalgae will move over water where the Sea Surface Temperatures are near 29˚C. The upper level ridge over the Western North Pacific will continue to cause moderate vertical wind shear. However, the wind shear will not be strong enough to prevent intensification. Tropical Storm Nalgae will intensify during the next 36 hours. It is forecast to strengthen to a typhoon.

Tropical Storm Nalgae will move around the southern side of a high pressure system over the Western North Pacific Ocean. The high pressure system will steer Nalgae toward the west-northwest during the next 36 hours. On its anticipated track Tropical Storm Nalgae will approach southeastern Luzon on Friday. Nalgae could be a typhoon when it reaches southeast Luzon. It could bring strong winds and locally heavy rain. Heavy rain is likely to cause flash floods in some locations.

Tropical Storm Malakas Spins South-southwest of Guam

Tropical Storm Malakas spun south-southwest of Guam on Friday night. At 11:00 p.m. EDT on Friday the center of Tropical Storm Malakas was located at latitude 7.4°N and longitude 144.1°E which put it about 460 miles (740 km) south-southwest of Guam. Malakas was moving toward the north at 6 m.p.h (10 km/h). The maximum sustained wind speed was 45 m.p.h. (75 km/h) and there were wind gusts to 60 m.p.h. (95 km/h). The minimum surface pressure was 997 mb.

An upper level ridge over the Western North Pacific strengthened on Friday and that increased the vertical wind shear affecting Tropical Storm Malakas. The increased wind shear prevented Malakas from strengthening on Friday. When the upper level ridge strengthened, the easterly winds blowing toward the top of Malakas’ circulation strengthened. Those stronger upper level winds increased the vertical wind shear and they caused the distribution of thunderstorms around Tropical Storm Malakas to become asymmetrical. The strongest thunderstorms were occurring in bands in the western half of Malakas’ circulation. Bands in the eastern half of the tropical storm consisted primarily of showers and lower clouds. Winds to tropical storm force extended out 90 miles (145 km) from the center of circulation.

Tropical Storm Malakas will move through an environment more favorable for intensification during the next 36 hours. Malakas will move over water where the Sea Surface Temperatures are near 29˚C. It will move under the southern part of an upper level ridge over the Western North Pacific Ocean. The ridge will produce easterly winds that will blow toward the top of Malakas’ circulation. Those winds will cause some vertical wind shear, but the shear is forecast to decrease during the weekend. Tropical Storm Malakas will intensify during the next 36 hours. Malakas could strengthen to a typhoon during the weekend.

Tropical Storm Malakas will move around the southwestern part of a high pressure system over the Western North Pacific Ocean during the next several days. The high pressure system will steer Malakas toward the northwest. On its anticipated track Tropical Storm Malakas could pass between Guam and Yap during the weekend.

Elsewhere over the Western North Pacific Ocean, Tropical Depression 03W developed east of the Philippines. At 11:00 p.m. EDT on Friday the center of Tropical Depression 03W was located at latitude 10.8°N and longitude 126.8°E which put it about 265 miles (425 km) southeast of Legazpi, Philippines. The tropical depression was moving toward the south-southwest at 4 m.p.h (6 km/h). The maximum sustained wind speed was 30 m.p.h. (50 km/h) and there were wind gusts to 40 m.p.h. (65 km/h). The minimum surface pressure was 1006 mb.