Tag Archives: Tropical Storm Nesat

Tropical Storm Nesat Drops Rain on Hainan

Tropical Storm Nesat dropped rain on Hainan on Tuesday night. At 11:00 p.m. EDT on Tuesday the center of Tropical Storm Nesat was located at latitude 17.0°N and longitude 110.5°E which put it about 100 miles (160 km) south-southeast of Lingshui China. Nesat was moving toward the west at 12 m.p.h. (19 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 988 mb.

Former Typhoon Nesat weakened to a tropical storm on Tuesday as it moved over the South China Sea southeast of Hainan. An upper level ridge over China produced easterly winds that blew toward the top of Nesat’s circulation. Those winds caused moderate vertical wind shear and the wind shear caused an asymmetrical distribution of thunderstorms around Tropical Storm Nesat. Most of the thunderstorms were occurring in the northwestern part of Nesat. Those thunderstorms dropped heavy rain over Hainan and parts of southern China. Winds to tropical storm force extended out 200 miles (320 km) from the center of Nesat.

Tropical Storm Nesat will move through an environment unfavorable for intensification during the next 48 hours. Nesat will move over water where the Sea Surface Temperatures are near 29˚C. It will continue to move under the southern part of the over China. The ridge will produce easterly winds that will cause moderate vertical wind shear and the wind shear will inhibit intensification. A surface high pressure system over southern China will produce northeasterly winds that will transport drier air into the northern and western parts of Tropical Storm Nesat. The vertical wind shear and the drier air will cause Tropical Storm Nesat to continue to weaken during the next 48 hours.

The surface high pressure system over southern China will steer Tropical Storm Nesat toward the west during the next 48 hours. On its anticipated track, the center of Tropical Storm Nesat will pass south of Hainan during the next 24 hours. Nesat could approach the coast of Vietnam in 36 hours. Bands on the northern side of Tropical Storm Nesat will drop locally heavy rain on parts of Hainan, southern China and northern Vietnam. Heavy rain could cause flash floods in some locations.

Tropical Storm Nesat Develops near Northern Luzon

Tropical Storm Nesat developed over the Western North Pacific Ocean near northern Luzon on Saturday morning. At 5:00 a.m. EDT on Saturday the center of Tropical Storm Nesat was located at latitude 18.6°N and longitude 123.5°E which put it about 160 miles (260 km) east of Claveria, Philippines. Nesat was moving toward the west at 25 m.p.h. (40 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.

The circulation around a low pressure system over the Western North Pacific Ocean near northern Luzon strengthened on Saturday morning and the Japan Meteorological Agency designated the system as Tropical Storm Nesat. The distribution of thunderstorms in Tropical Storm Nesat was asymmetrical. Many of the thunderstorms were occurring in bands in the western half of Nesat’s circulation. Bands in the eastern side of Tropical Storm Nesat consisted primarily of showers and lower clouds. Storms near the center of Nesat generated upper level divergence that pumped mass away to the west of the tropical storm. Winds to tropical storm force extended out 125 miles (200 km) in the northern side of Nesat’s circulation. The winds in the southern half of the circulation were blowing at less than tropical storm force.

Tropical Storm Nesat will move through an environment favorable for intensification during the next 36 hours. Nesat 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 cause some vertical wind shear. The wind shear will inhibit intensification, but Tropical Storm Nesat is likely to strengthen during the next 36 hours. Nesat could intensify to a typhoon by the end of the weekend.

Tropical Storm Nesat will move around the southern side of a surface high pressure system over the Western North Pacific Ocean. The high pressure system will steer Nesat toward the west during the next 36 hours. On its anticipated track, Tropical Storm Nesat will pass near northern Luzon during the next 24 hours. Nesat will bring gusty winds and locally heavy rain to northern Luzon. Heavy rain could cause flash floods in some locations. Tropical Storm Nesat will move over the South China Sea on Sunday.

Typhoon Nesat Causes Heavy Rain, Floods in Taiwan

Typhoon Nesat caused heavy rain and floods in parts of Taiwan when it moved over the island.  At 11:00 p.m. EDT on Saturday the center of Tropical Storm Nesat was located at latitude 26.2°N and longitude 118.9°E which put it near Fuzhou, China.  Nesat was moving toward the northwest at 13 m.p.h. (21 km/h).  The maximum sustained wind speed was 60 m.p.h. (95 km/h) and there were wind gusts to 75 m.p.h. (120 km/h).  The minimum surface pressure was 977 mb.

The core of Typhoon Nesat moved over northern Taiwan earlier today and the center passed close to Taipei.  The typhoon brought strong winds and heavy rain to parts of northern and eastern Taiwan.  The rainfall was heavy enough in some locations to cause flash flooding.  Nesat weakened to a tropical storm when the center passed over Taiwan.

Tropical Storm Nesat moved quickly across the Taiwan Strait and it made another landfall on the east coast of China near Fuzhou.  Nesat produced gusty winds and locally heavy rain near the coast.  Heavy rain will continue to fall over eastern China as Tropical Storm Nesat moves farther inland and the rain could result in flooding in some locations.

Parts of Taiwan could receive additional heavy rain on Sunday when Tropical Storm Haitang approaches the southern part of the island.  At 11:00 p.m. EDT on Saturday the center of Tropical Storm Haitang was located at latitude 20.8°N and longitude 119.7°E which put it about 370 miles (595 km) south-southwest of Taipei, Taiwan.  Haitang was moving toward the east-northeast at at 14 m.p.h. (22 km/h).  The maximum sustained wind speed was 40 m.p.h. (65 km/h) and there were gusts to 50 m.p.h. (80 km/h).  The minimum surface pressure was 997 mb.

The distribution of rain in Tropical Storm Haitang is very asymmetrical.  Almost all of the showers and thunderstorms are located south of the center of circulation.  However, there is a fairly large area of heavy rain in the southern half of the circulation of Haitang.  Tropical Storm Haitang is currently moving toward the east-northeast, but it is forecast to turn toward the north in a trough of low pressure left behind in the wake of Tropical Storm Nesat.  On its anticipated track Haitang, could make landfall in southwestern Taiwan near Kaohsiung in about 12 hours.  When the heavy rain in Haitang reaches Taiwan, it could exacerbate the flooding caused by Nesat.

Elsewhere over the Western North Pacific the center of Tropical Storm Noru passed just east of Iwo To.  At 11:00 p.m. EDT on Saturday the center of Tropical Storm Noru was located at latitude 23.5°N and longitude 141.4°E which put it about 80 miles (130 km) south-southeast of Iwo To.  Noru was moving toward the south-southwest at 10 m.p.h. (16 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 978 mb.

Tropical Storm Noru brought periods of heavy rain and gusty winds to Iwo To when the core of tropical storm moved east of the island.  Tropical Storm Noru is forecast to turn toward the west on Sunday.  The outer bands on the northern side of Noru will continue to cause gusty winds and periods of heavier rain on Iwo To as the tropical storm passes south of the island.

Tropical Storm Nesat Forms Southeast of Taiwan

Tropical Storm Newsat formed southeast of Taiwan on Wednesday.  At 11:00 p.m. EDT on Wednesday the center of Tropical Storm Nesat was located at latitude 18.0°N and longitude 127.5°E which put it about 620 miles (1000 km) southeast of Taipei, Taiwan.  Nesat was moving toward the north at 6 m.p.h. (10 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 988 mb.

A well organized surface circulation formed in an area of thunderstorms southeast of Taiwan on Wednesday.  A strong cluster of thunderstorms formed south of the center of circulation.  Additional bands of showers and thunderstorms developed in the western and southern portions of Tropical Storm Nesat.  There were few thunderstorms in the eastern half of the circulation.  More thunderstorms appeared to be forming near the core of the circulation in recent hours.  The thunderstorms in the core were generating upper level divergence which was pumping out mass.

Tropical Storm Nesat will be moving through an area that is favorable for intensification.  Nesat will move over water where the Sea Surface Temperature is near 31°C.  Tropical Storm Nesat is beneath the northeastern part of an upper level ridge.  The ridge is producing northeasterly winds which are blowing toward the top of the circulation.  Those winds are causing some vertical wind shear and the shear could be the reason for the asymmetrical distribution of thunderstorms.  Tropical Storm Nesat could move under the axis of the upper level ridge where the winds are weaker.  In that case the shear would be less and Nesat could intensify more quickly.  Tropical Storm Nesat is likely to intensify into a typhoon during the next 24 hours.

Tropical Storm Nesat is moving around a weak area in a subtropical ridge, which is allowing the tropical storm to move toward the north.  The ridge is forecast to strengthen and when that happens it will steer Nesat more toward the west.  On its anticipated track Tropical Storm Nesat could approach Taiwan in about three days.  Nesat could be a strong typhoon when it nears Taiwan.

Elsewhere in the Western North Pacific Typhoon Noru has turned back toward the west.  At 11:00 p.m. EDT on Wednesday the center of Typhoon Noru was located at latitude 30.6°N and longitude 151.2°E which put it about 770 miles (1240 km) east-northeast of Iwo To.  Noru was moving toward the west at 19 m.p.h. (31 km/h).  The maximum sustained wind speed was 75 m.p.h. (120 km/h) and there were wind gusts to 90 m.p.h. (150 km/h).  The minimum surface pressure was 978 mb.

A subtropical ridge north of Typhoon Noru is steering the typhoon toward the west.  A general westerly motion is forecast to continue for several more days.  Noru could reach an area of weaker steering winds in a few days and its motion may slow.  On its anticipated track Typhoon Noru could approach Iwo To in three or four days.