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Typhoon Kajiki Brings Wind and Rain to Hainan

Typhoon Kajiki brought wind and rain to Hainan on Sunday.  At 5:00 a.m. EDT on Sunday the center of Typhoon Kajiki was located at latitude 17.5°N and longitude 109.8°E which put the center about 50 miles (80 km) south-southeast of Sanya, China.  Kajiki was moving toward the west at 11 m.p.h. (17 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 967 mb.

Typhoon Kajiki rapidly intensified to the equivalent of a Category 2 hurricane on the Saffir-Simpson Scale during Saturday night.  A circular eye with a diameter of 25 miles (40 km) formed at the center of Kajiki’s circulation.  The eye was surrounded by a ring of thunderstorms and the strongest winds were occurring in that ring of storms.  Bands of showers and thunderstorms were revolving around the center of Typhoon Kajiki.  Storms near the center of Kajiki generated strong upper level divergence that pumped large quantities of mass away from the typhoon.  The removal of large amounts of mass caused the surface pressure to decrease rapidly.

The circulation around Typhoon Kajiki became more symmetrical when it rapidly intensified.  Winds to typhoon force extended out 30 miles (50 km) from the center of Kajiki’s circulation.  Winds to tropical storm force extended out 115 miles (185 km) from the center of Typhoon Kajiki.

The Hurricane Intensity Index (HII) for Typhoon Kajiki is 17.8.  The Hurricane Size Index (HSI) is 11.3 and the Hurricane Wind Intensity Size Index (HWISI) is 29.1.  Typhoon Kajiki is similar in size and intensity to Hurricane Sally when Sally hit South Alabama in 2020.

Typhoon Kajiki will move through an environment that is favorable for intensification during the next 24 hours.  Kajiki 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 China.  The upper level ridge will produce northeasterly winds that will blow toward the top of Kajiki’s circulation.  The winds in the lower levels of the atmosphere will also blow from the northeast.  So, there will be little vertical wind shear.  Typhoon Kajiki will intensify during the next 24 hours as long as the center remains south of Hainan.  Kajiki could strengthen to the equivalent of a major hurricane.

Typhoom Kajiki will move around the southern side of a high pressure system over China.  The high pressure system will steer Kajiki toward the west during the next 24 hours.  On its anticipated track, the center of Typhoon Kajiki will continue to pass south of Hainan during the next 12 hours.  Kajiki will hit the coast of  northern Vietnam in 24 hours.

Typhoon Kajiki will continue bring strong winds and heavy rain to Hainan during the next 12 hours.  Heavy rain is likely to cause flash floods in some locations.

Typhoon Kajiki will also bring strong winds and heavy rain to northern Vietnam.  Heavy rain is likely to cause flash floods there as well.  Typhoon Kajiki could cause a storm surge of up to 10 feet (3 meters) along the coast of northern Vietnam.

Kajiki Strengthens to a Typhoon

Former Tropical Storm Kajiki strengthened to a typhoon over the South China Sea southeast of Hainan on Saturday night.  At 11:00 p.m. EDT on Saturday the center of Typhoon Kajiki was located at latitude 17.3°N and longitude 110.6°E which put the center about 85 miles (135 km) south-southeast of Lingshui, China.  Kajiki was moving toward the west at 13 m.p.h. (21 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. (145 km/h).  The minimum surface pressure was 985 mb.

Former Tropical Storm Kajiki strengthened to a typhoon on Saturday night. The inner end of a rainband wrapped around the center of Typhoon Kajiki.  A small circular eye was visible at the center of Kajiki’s circulation.  The eye was surrounded by a ring of thunderstorms and the strongest winds were occurring in that ring of storms.  Bands of showers and thunderstorms were revolving around the center of Typhoon Kajiki.  Storms near the center of Kajiki generated upper level divergence that pumped mass away from the typhoon.  The removal of mass caused the surface pressure to decrease.

The size of the circulation around Typhoon Kajiki increased as Kajiki strengthened on Saturday.  Winds to typhoon force extended out 40 miles (65 km) from the center of Kajiki’s circulation.  Winds to tropical storm force extended out 145 miles (235 km) from the center of Typhoon Kajiki.

Typhoon Kajiki will move through an environment that is favorable for intensification during the next 24 hours.  Kajiki 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 China.  The upper level ridge will produce northeasterly winds that will blow toward the top of Kajiki’s circulation.  The winds in the lower levels of the atmosphere will also blow from the northeast.  So, there will be little vertical wind shear.  Typhoon Kajiki will intensify during the next 24 hours as long as the center passes south of Hainan.

Typhoom Kajiki will move around the southern side of a high pressure system over China.  The high pressure system will steer Kajiki toward the west during the next 24 hours.  On its anticipated track, the center of Typhoon Kajiki will pass south of Hainan during the next 12 hours.  Kajiki will approach northern Vietnam in 24 hours.

Typhoon Kajiki will bring strong winds and heavy rain to Hainan.  Heavy rain is likely to cause flash floods in some locations.

Typhoon Kajiki will also bring strong winds and heavy rain to northern Vietnam.  Heavy rain is likely to cause flash floods there as well.  Typhoon Kajiki could cause a storm surge of up to 8 feet (2.4 meters) along the coast of northern Vietnam.

Tropical Storm Kajiki Forms Over South China Sea

Tropical Storm Kajiki formed over the South China Sea on Friday night.  At 11:00 p.m. EDT on Friday the center of Tropical Storm Kajiki was located at latitude 17.6°N and longitude 115.9°E which put the center about 365 miles (590 km) south-southeast of Hong Kong.  Kajiki was moving toward the west-northwest at 12 m.p.h. (19 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 1000 mb.

A low pressure system over the South China Sea strengthened on Friday evening and the Japan Meteorological Agency designated the system as Tropical Storm Kajiki.

The circulation around Tropical Storm Kajiki exhibited much more organization on Friday night.  Numerous thunderstorms were forming around the center of Kajiki’s circulation.  Thunderstorms also developed in bands revolving around the center of Tropical Storm Kajiki.  Storms near the center of Kajiki generated upper level divergence that pumped mass away from the tropical storm.  The removal of mass caused the surface pressure to decrease.

The distribution of wind speeds around Tropical Storm Kajiki was asymmetrical.  Winds to tropical storm force extended out 130 miles (210 km) in the northwestern quadrant of Kajiki’s circulation.  Winds to tropical storm force extended out 80 miles (130 km) in the other parts of Tropical Storm Kajiki.

Tropical Storm Kajiki will move through an environment that is favorable for intensification during the next 24 hours.  Kajiki 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 China.  The upper level ridge will produce easterly winds that will blow toward the top of Kajiki’s circulation.  The winds in the lower levels of the atmosphere will also blow from the east.  So, there will be little vertical wind shear.  Tropical Storm Kajiki will intensify during the next 24 hours.  Kajiki could strengthen to a typhoon during the weekend.

Tropical Storm Kajiki will move around the southern side of a high pressure system over China.  The high pressure system will steer Kajiki toward the west-northwest during the next 24 hours.  On its anticipated track, Tropical Storm Kajiki will approach southern Hainan in 24 hours.

Tropical Storm Kajiki could be a typhoon when it approaches southern Hainan.  Kajiki will bring strong winds and heavy rain to Hainan.  Heavy rain is likely to cause flash floods in some locations.

Tropical Storm Co-may Moves Inland Near Shanghai

Tropical Storm Co-may moved inland over eastern China near Shanghai on Wednesday.  At 11:00 a.m. EDT on Wednesday the center of Tropical Storm Co-may was located at latitude 31.4°N and longitude 121.1°E which put the center about 5 miles (10 km) west of Shanghai, China.  Co-may was moving toward the northwest at 7 m.p.h. (11 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 979 mb.

The center of Tropical Storm Co-may made landfall on the coast of eastern China near Shanghai on Wednesday.  Co-may was weakening as it made landfall.  Winds to tropical storm force extended out 115 miles (185 km) from the center of Co-may’s circulation.

Tropical Storm Co-may will move around the southwestern part of a high pressure system over northeastern China.  The high pressure system will steer Co-may toward the west-northwest during the next 24 hours.  On its anticipated track, the center of Tropical Storm Co-may will move inland west of Shanghai during the next 24 hours.

Tropical Storm Co-may will bring gusty winds and rain to the region around Shanghai.  Locally heavy rain could cause floods in Zhejiang and Jiangsu.

Elsewhere over the Western North Pacific Ocean, Tropical Storm Krosa was stalled southeast of Japan.  At 11:00 a.m. EDT on Wednesday the center of Tropical Storm Krosa was located at latitude 29.2°N and longitude 143.2°E which put the center about 475 miles (765 km) south-southeast of Tokyo, Japan.  Krosa was moving toward the northwest at 2 m.p.h. (3 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 985 mb.

Tropical Storm Co-may Nears Eastern China

Tropical Storm Co-may neared the coast of eastern China on Tuesday.  At 11:00 a.m. EDT on Tuesday the center of Tropical Storm Co-may was located at latitude 28.9°N and longitude 123.1°E which put the center about 215 miles (345 km) south-southeast of Shanghai, China.  Co-may was moving toward the northwest at 9 m.p.h. (15 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 982 mb.

After meandering around Okinawa for several days Tropical Storm Co-may started to move toward the coast of eastern China south of Shanghai on Tuesday.  The distribution of thunderstorms in Tropical Storm Co-may was asymmetrical.  Thunderstorms were occurring in bands in the northern and western parts of Co-may’s circulation.  Bands in the eastern and southern parts of Tropical Storm Co-may consisted primarily of showers and lower clouds.

The distribution of wind speeds in Tropical Storm Co-may was also asymmetrical.  Winds to tropical storm force extended out 175 miles (280 km) in the northern side of Co-may’s circulation.  The winds in the southern half of Tropical Storm Co-may were blowing at less than tropical storm force.

Tropical Storm Co-may will move through an environment somewhat favorable for intensification during then ext 12 hours.  Co-may will move over water where the Sea Surface Temperatures are near 28°C.  It will move under the eastern side of an upper level trough that is over eastern Asia.  The upper level trough will produce southwesterly winds that will blow toward the top of Co-may’s circulation.  Those winds will cause some vertical wind shear.  The vertical wind shear will inhibit intensification but the wind shear may not be enough to prevent intensification.  Tropical Storm Co-may could intensify during the next 12 hours.

Tropical Storm Co-may will move around the western end of a high pressure system over Japan.  The high pressure system will steer Co-may toward the northwest during the next 24 hours.  On its anticipated track, the center of Tropical Storm Co-may will be near Shanghai in less than 24 hours.

Tropical Storm Co-may will bring wind and rain to the region around Shanghai.  Heavy rain could cause floods in Zhejiang and Jiangsu.

Elsewhere over the Western North Pacific Ocean, Tropical Storm Krosa was meandering south of Japan.  At 11:00 a.m. EDT on Tuesday the center of Tropical Storm Krosa was located at latitude 28.6°N and longitude 142.9°E which put the center about 500 miles (805 km) south-southeast of Tokyo, Japan.  Krosa was moving toward the north at 2 m.p.h. (3 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 980 mb.

Tropical Storm Wipha Brings Wind and Rain to Southern China

Tropical Storm Wipha brought wind and rain to southern China on Sunday.  At 11:00 a.m. EDT on Sunday the center of Tropical Storm Wipha was located at latitude 21.6°N and longitude 111.2°E which put the center about 70 miles (110 km) east-northeast of Zhanjiang, China.  Wipha was moving toward the west at 16 m.p.h. (26 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 980 mb.

Former Typhoon Wipha weakened to a tropical storm after it made landfall on the coast of southern China west of Hong Kong.  Tropical Storm Wipha was bringing strong winds and heavy rain to parts of southern China on Sunday.

A weather station at Hong Kong airport (VHHH) reported a sustained wind speed of 46 knots (53 m.p.h. or 85 km/h) as the center of then Typhoon Wipha passed south of the station.  The same weather station also reported a wind gust of 65 knots (75 m.p.h. or 120 km/h).

The circulation around Tropical Storm Wipha remains well organized even though the center of Wipha’s circulation has been overland for a few hours.  A broken ring of thunderstorms surrounds the center of Tropical Storm Wipha.  The strongest winds are occurring in that ring of storms.  Thunderstorms are occurring in bands in the western side of Wipha’s circulation.  Bands in the northern and eastern parts of Tropical Storm Wipha consist primarily of showers and lower clouds.

The strongest winds in Tropical Storm Wipha are occurring in the part of Wipha’s circulation that is over the northern South China Sea.  Winds to tropical storm force extended out 155 miles (250 km) from the center of Tropical Storm Wipha.

Tropical Storm Wipha will move around the southern part of a high pressure system over eastern China.  The high pressure system will steer Wipha toward the west-southwest during the next 24 hours.  On its anticipated track, the center of Tropical Storm Wipha will move along the coast of southern China during the next 12 hours.  The center of Wipha’s circulation could move over the northern Gulf of Tonkin on Monday.

Tropical Storm Wipha will bring strong winds and locally heavy rain to southwestern Guangdong.  Heavy rain could cause flash floods in some location.  Tropical Storm Wipha will also produce strong winds and heavy rain in southern Guangxi and in Hainan.  Tropical Storm Wipha could bring strong winds and locally heavy rain to northern Vietnam early next week.

Tropical Storm Wipha will weaken slowly as long as the center of circulation remains over land.  If the center of Wipha’s circulation  moves over the Gulf of Tonkin on Monday, then Wipha would move through an environment somewhat favorable for intensification.  Tropical Storm Wipha would move over water where the Sea Surface Temperatures are near 29°C.  It would move under the southern side of an upper level ridge that is over China.  The upper level ridge will produce northeasterly winds that will blow toward the top of Wipha’s circulation. Those winds will cause some vertical wind shear.  The vertical wind shear will inhibit intensification but the wind shear may not be enough to prevent intensification. Tropical Storm Wipha could intensify a little  on Monday if the center of Wipha’s circulation moves over the Gulf of Tonkin.

Wipha Intensifies to a Typhoon Near Hong Kong

Former Tropical Storm Wipha intensified to a typhoon near Hong Kong on Saturday night.  At 11:00 p.m. EDT on Saturday the center of Typhoon Wipha was located at latitude 21.6°N and longitude 113.9°E which put the center about 55 miles (95 km) south-southeast of Hong Kong.  Wipha was moving toward the west at 15 m.p.h. (24 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. (145 km/h).  The minimum surface pressure was 970 mb.

Former Tropical Storm Wipha intensified to a typhoon on Saturday night near Hong Kong.  The center of Typhoon Wipha was still over water just to the south-southeast of Hong Kong.  The inner end of a rainband wrapped most of the way around the center of Wipha’s circulation. Thunderstorms were occurring in bands in the southern and eastern parts of Typhoon Wipha. Bands in the northern part of Wipha’s circulation  consisted primarily of showers and lower clouds.  Storms near the center of Wipha generated upper level divergence that pumped mass away to the southwest of the tropical storm.  The removal of mass caused the surface pressure to decrease.

The strongest winds were occurring in the southern side of Typhoon Wipha.  Winds to typhoon force extended out 30 miles (50 km) in the southern half of Wipha’s circulation.  Winds to tropical storm force extended out 155 miles (250 km from the center of Typhoon Wipha.

Typhoon Wipha will move through an environment favorable for intensification during the next 12 hours . Wipha will move over water where the Sea Surface Temperatures are near 29°C.  It will move under the southeastern side of an upper level ridge that is over China.  The upper level ridge will produce northeasterly winds that will blow toward the top of Wipha’s circulation.  Those winds will cause some vertical wind shear.  The vertical wind shear will inhibit intensification but the wind shear may be enough to prevent intensification. Typhoon Wipha could intensify a little more during the next 12 hours.

Typhoon Wipha will move around the southern part of a high pressure system over eastern China.  The high pressure system will steer Wipha toward the west during the next 24 hours.  On its anticipated track, the center of Typhoon Wipha will pass just south of Hong Kong during the next few hours.  The center of Wipha’s circulation will also pass just south of Macau.  The center of Typhoon Wipha could be near Yangjiang in 18 hours.

Typhoon Wipha will bring strong winds and locally heavy rain to Hong Kong.  Heavy rain could cause flash floods and mudslides.  Wipha will also bring strong winds and heavy rain to southern Guangdong including Macau.  Typhoon Wipha will produce strong wins and heavy rain in southern Guangxi and in Hainan.

Tropical Storm Wipha Strengthens

Tropical Storm Wipha strengthened as it moved closer to Hong Kong on Saturday.  At 11:00 a.m. EDT on Saturday the center of Tropical Storm Wipha was located at latitude 21.1°N and longitude 117.1°E which put the center about 240 miles (390 km) east-southeast of Hong Kong.  Wipha was moving toward the west-northwest 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 976 mb.

Tropical Storm Wipha strengthened on Saturday as it moved closer to Hong Kong.  The inner end of a rainband wrapped most of the way around the center of Wipha’s circulation.  More thunderstorms formed near the center of Tropical Storm Wipha.  Thunderstorms were also occurring in bands in the southern and eastern parts of Wipha’s circulation.  Bands in the northwestern quadrant of Tropical Storm Wipha consisted primarily of showers and lower clouds.  Storms near the center of Wipha generated upper level divergence that pumped mass away to the southwest of the tropical storm.  The removal of mass caused the surface pressure to decrease.

The circulation around Tropical Storm Wipha was large.  Winds to tropical storm force extended out 195 miles (315 km) from the center of Wipha’s circulation.

Tropical Storm Wipha will move through an environment favorable for intensification during the next 12 hours.  Wipha will move over water where the Sea Surface Temperatures are near 29°C. It will move under the southeastern side of an upper level ridge that is over China.  The upper level ridge will produce northeasterly winds that will blow toward the top of Wipha’s circulation.  Those winds will cause some vertical wind shear.  The vertical wind shear will inhibit intensification but the wind shear may be enough to prevent intensification.  Tropical Storm Wipha could intensify during the next 12 hours.  Wipha could strengthen to a typhoon during that time.

Tropical Storm Wipha will move around the southern part of a high pressure system over the Western North Pacific Ocean and eastern China.  The high pressure system will steer Wipha toward the west-northwest during the next 18 hours.  On its anticipated track, the center of Tropical Storm Wipha will be near Hong Kong in 18 hours.

Tropical Storm Wipha will bring strong winds and locally heavy rain to Hong Kong.  Heavy rain could cause flash floods and mudslides.  Tropical Storm Wipha will also bring strong winds and heavy rain to southern Guangdong.

Tropical Storm Danas Drops Rain on Eastern China

Tropical Storm Danas dropped rain on eastern China on Tuesday.  At 5:00 p.m. EDT on Tuesday the center of Tropical Storm Danas was located at latitude 27.6°N and longitude 120.3°E which put the center about 50 miles (80 km) southwest of Wenzhou, China.  Danas was moving toward the west-southwest at 6 m.p.h. (10 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 986 mb.

The center of Tropical Storm Danas made landfall on the east coast of China just to the south of Wenzhou on Tuesday.  The maximum sustained wind speed was 40 m.p.h. (65 km/h) at the time of landfall.  Winds to tropical storm force extended out 120 miles (195 km) from the center of Danas’ circulation.

Tropical Storm Danas will move around the southern side of a high pressure system over eastern Asia.  The high pressure system will steer Danas toward the southwest during the next 24 hours.  On its anticipated track, Tropical Storm Danas will move farther inland over eastern China.

Tropical Storm Danas will weaken gradually as it moves inland over eastern China.  The heaviest rain will be produced by bands in the southern side of Danas’ circulation.  Bands in the northern side of Tropical Storm Danas will consist primarily of showers and lower clouds.

Tropical Storm Danas will drop heavy rain over parts of Zhejiang.  Heavy rain could cause floods in some locations.

The strongest winds will occur in the eastern side of Danas’ circulation which will be over the East China Sea.  Most of the winds over land will be at less than tropical storm force.

Tropical Storm Danas Nears Eastern China

Tropical Storm Danas was nearing eastern China on Monday evening.  At 11:00 p.m. EDT on Monday the center of Tropical Storm Danas was located at latitude 28.1°N and longitude 122.0°E which put the center about 80 miles (130 km) east of Wenzhou, China and about 50 miles (80 km) southeast of Taizhou, China.  Danas 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 992 mb.

Even though Tropical Storm Danas was over the East China Sea on Monday, Danas’ circulation was still disrupted from the affects of its passage over Taiwan on Sunday.  The distribution of thunderstorms in Tropical Storm Danas was asymmetrical.  Thunderstorms were occurring in bands in the southern part of Danas’ circulation.  Bands in the northern side of Tropical Storm Danas consisted primarily of showers and lower clouds.

Winds to tropical storm force extended out 90 miles (145 km) from the center of Tropical Storm Danas.

Tropical Storm Danas will move through an environment that will be somewhat favorable for intensification during the next few hours. Danas will move over water where where the Sea Surface Temperatures are near 29°C.  It will move under the middle of an upper level ridge over East China Sea.  The upper level winds are weak near the middle of the ridge and there will be little vertical wind shear.  Even though Tropical Storm Danas will move through a somewhat favorable environment, Danas may not intensify because of the disruption of its circulation during the passage over Taiwan.

Tropical Storm Danas will move around the southern side of a high pressure system over eastern Asia.  The high pressure system will steer Danas toward the west during the next 24 hours.  On its anticipated track, Tropical Storm Danas will move over eastern China in a few hours.

The center of Tropical Storm Danas is likely to make landfall in China between Taizhou and Wenzhou.  Danas will bring gusty winds and locally heavy rain to Zhejiang.  Heavy rain could cause floods in some locations.