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Typhoon Kong-rey Brings Wind and Rain to South Korea

Typhoon Kong-rey brought wind and rain to South Korea late on Friday.  At 5:00 p.m. EDT on Friday the center of Typhoon Kong-rey was located at latitude 33.8°N and longitude 127.7°W which put it near Jeju (Cheju) Island and about 150 miles (240 km) southwest of Pusan, South Korea.  Kong-rey was moving toward the north-northeast at 20 m.p.h. (32 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.

Rainbands on the northern side of the circulation of Typhoon Kong-rey were already dropping heavy rain over parts of South Korea.  The core of Kong-rey was bringing winds to typhoon force and heavy rain to Jeju (Cheju) Island.  Typhoon Kong-rey was moving quickly toward the north-northeast.  On its anticipated track the center of Typhoon Kong-rey will pass near Pusan, South Korea in a few hours.  The typhoon will bring gusty winds and drop locally heavy rain when it passes over southeastern South Korea.  Kong-rey will weaken when it moves over the cooler water in the Sea of Japan.  Kong-rey could be near Hokkaido in about 24 hours.  It will be a tropical storm at that time, but it could still drop locally heavy rain.

Typhoon Kong-rey Brings Wind and Rain to Okinawa

Typhoon Kong-rey was bringing wind and rain to Okinawa on Wednesday night.  At 11:00 p.m. EDT on Wednesday the center of Typhoon Kong-rey was located at latitude 23.6°N and longitude 127.3°W which put it about 230 miles (375 km) south of Okinawa.  Kong-rey was moving toward the northwest at 10 m.p.h. (16 km/h).  The maximum sustained wind speed was 80 m.p.h. (130 km/h) and there were wind gusts to 100 m.p.h. (160 km/h).  The minimum surface pressure was 964 mb.

Typhoon Kongrey weakened steadily during Wednesday.  The eye became less distinct on satellite imagery.  The ring of strong thunderstorms around the eye broke and stronger thunderstorms were only occurring to the east of the eye.  It appeared that Typhoon Kong-rey was pulling cooler, drier air into the western half of the circulation and that air was wrapping around the southern half of the typhoon.  Kong-rey may have also moved over some cooler water that was mixed to the surface by Typhoon Trami last week.

The circulation around Typhoon Kong-rey was still large.  Winds to typhoon force extended out about 70 miles (110 km) from the center of circulation.  Winds to tropical storm force extended out about 230 miles (375 km) from the center.  The Hurricane Intensity Index (HII) for Typhoon Kong-rey was 11.5.  The Hurricane Size Index (HSI) was 24.7 and the Hurricane Wind Intensity Size Index (HWISI) was 36.2.

Typhoon Kong-rey will move around the western end of a subtropical ridge over the Western North Pacific Ocean.  The ridge will steer Kong-rey toward the north during the next 24 to 36 hours.  Typhoon Kong-rey will turn more toward the northeast in about 36 hours.

The outer rainbands on the northern side of Typhoon Kong-rey are already over Okinawa.  Kong-rey will drop heavy rain and it will produce gusty winds over Okinawa and the Ryukyu Islands on Thursday.  The wind and rain will hinder efforts to recover from damage caused by Typhoon Trami.  Typhoon Kong-rey could be southeast of Kyushu in about 36 hours and it could be near South Korea in about 48 hours.  The soil in much of Japan is already near saturation and more heavy rain could cause flash flooding.  Typhoon Kong-rey could also hinder recovery efforts in Kyushu, Shikoku and Honshu.

Typhoon Kong-rey Quickly Strengthens Into Equivalent of Cat. 5 Hurricane

Typhoon Kong-rey quickly strengthened into the equivalent of a Category 5 hurricane on the Saffir-Simpson Scale on Monday.  At 11:00 p.m. EDT on Monday the center of Typhoon Kong-rey was located at latitude 17.9°N and longitude 137.3°E which put it about 690 miles (1110 km) southeast of Okinawa.  Kong-rey was moving toward the west-northwest at 11 m.p.h. (17 km/h).  The maximum sustained wind speed was 160 m.p.h. (260 km/h) and there were wind gusts to 195 m.p.h. (315 km/h).  The minimum surface pressure was 910 mb.

The circulation of Typhoon Kong-rey was very organized and symmetrical.  There was a circular eye at the center of Kong-rey.  The eye was surrounded by a ring of strong thunderstorms and the strongest winds were occurring in that ring of storms.  Several bands of showers and thunderstorms were revolving around the core of Typhoon Kong-rey.  Storms near the core were generating strong upper level divergence which was pumping mass away from the typhoon in all directions.

Kong-rey is a large typhoon.  Winds to typhoon force extend out about 75 miles (120 km) from the center of circulation.  Winds to tropical storm force extend out about 240 miles (390 km) from the center.  The Hurricane Intensity Index (HII) for Typhoon Kong-rey is 35.0.  The Hurricane Size Index (HSI) is 26.8 and the Hurricane Wind Intensity Size Index (HWISI) is 61.8.  Typhoon Kong-rey is capable of causing widespread catastrophic damage.

Typhoon Kong-rey will remain in an environment very favorable for strong typhoons for another 24 to 36 hours.  Kong-rey will move over water where the Sea Surface Temperature is near 30°C.  It will move through a region where the upper level winds are weak and there will be little vertical wind shear.  If a rainband wraps around the existing eye and eyewall, then an eyewall replacement cycle could cause Typhoon Kong-rey to weaken.  An upper level trough near Taiwan will produce southwesterly winds which will cause the vertical wind shear to increase in a couple of days.  Kong-rey will weaken more steadily when the wind shear increases.

Typhoon Kong-rey will move around the western end of a subtropical high pressure system over the Western North Pacific Ocean.  The high will steer Kong-rey toward the northwest for several more days.  On its anticipated track Typhoon Kong-rey could approach the Rykyu Islands in 48 to 60 hours.  It will still be a typhoon at that time.  If Typhoon Kong-rey brings strong winds and heavy rain, it will hamper the recovery from Typhoon Trami which hit the Ryukyu Islands a few days ago.

Large Typhoon Trami Brings Wind and Rain to Japan

Large Typhoon Trami brought wind and rain to Japan on Saturday night.  At 11:00 p.m. EDT on Saturday the center of Typhoon Trami was located at latitude 31.8°N and longitude 132.3°E which put it about 140 miles (225 km) southwest of Kochi, Japan.  Trami was moving toward the northeast at 22 m.p.h. (33 km/h).  The maximum sustained wind speed was 105 m.p.h. (170 km/h) and there were wind gusts to 125 m.p.h. (200 km/h).  The minimum surface pressure was 950 mb.

There was still a large eye at the center of Typhoon Trami, but the ring of thunderstorms around the eye was beginning to look a little more ragged.  However, the circulation around Trami was very large.  Winds to typhoon force extended out about 155 miles (250 km) from the center of circulation.  Winds to tropical storm force extended out about 355 miles (575 km) from the center.

The Hurricane Intensity Index (HII) for Typhoon Trami was 17.8.  The Hurricane Size Index (HSI) was 49.6 and the Hurricane Wind Intensity Size Index (HWISI) was 67.4.  Typhoon Trami was capable of causing extensive serious damage.

Typhoon Trami brought strong winds and heavy rain to Okinawa and the northern Ryukyu Islands on Saturday.  There were reports of damage.  The northern eyewall of Trami passed over Kyushu.  Strong winds and heavy rain were falling in that region.  Heavy rain and strong winds will reach Shikoku shortly.  The center of Typhoon Trami could be near Kyoto in about six hours.  Trami will move northeast across Honshu on Sunday.  It will bring heavy rain and gusty winds to much of Japan.  Flash flooding will be possible over much of Japan.

Elsewhere over the Western North Pacific Ocean Tropical Storm Kong-rey was strengthening southeast of the Ryukyu Islands.  At 11:00 p.m. EDT on Saturday the center of Tropical Storm Kong-rey was located at latitude 14.1°N and longitude 138.1°E which put it about 1165 miles (1880 km) east of Manila, Philippines.  Kong-rey was moving toward the west-northwest at 13 m.p.h. (20 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 983 mb.

Large Typhoon Trami Nears Okinawa

Large Typhoon Trami neared Okinawa late on Friday.  At 5:00 p.m. EDT on Friday the center of Typhoon Trami was located at latitude 25.1°N and longitude 126.9°E which put it about 135 miles (225 km) south-southwest of Okinawa.  Trami was moving toward the northwest at 6 m.p.h.  The maximum sustained wind speed was 105 m.p.h. (170 km) and there were wind gusts to 125 m.p.h. (200 km/h).  The minimum surface pressure was 949 mb.

After completing an eyewall replacement cycle over a day ago that left it weaker, but larger, Typhoon Trami has been in a relatively steady state.  There is a very large eye with a diameter of almost 100 miles (160 km) at the center of circulation.  The eye is surrounded by a ring of strong thunderstorms and the strongest winds are occurring in that ring of storms.  Several bands of showers and thunderstorms are revolving around the large eye.

The circulation around Typhoon Trami is large.  Winds to typhoon force extend out about 75 miles (120 km) from the center of circulation.  Winds to tropical storm force extend out about 235 miles (380 km) from the center.  The Hurricane Intensity Index (HII) for Typhoon Trami is 17.8.  Th Hurricane Size Index (HSI) is 26.9 and the Hurricane Wind intensity Size Index (HWISI) is 44.7.  Those indices indicate that Typhoon Trami is capable of causing widespread serious damage.

Typhoon Trami is already bringing wind and rain to Okinawa and some of the Ryukyu Islands.  The northern eyewall is over Okinawa and the northern part of the large eye will reach it soon.  Trami will bring strong, damaging winds to Okinawa and the northern Ryukyu Islands during the next 24 hours.  It will also drop heavy rain and flash floods could occur.

Typhoon Trami is moving around the western end of a subtropical ridge.  it will start to move more quickly toward the northeast on Sunday.  Trami could reach Shikoku and Honshu in about 48 hours.  Trmai will still be a typhoon when it reaches the larger islands of Japan.

Elsewhere over the Western North Pacific Ocean, Tropical Depression 30W was passing south of Guam.  At 5:00 p.m. EDT on Friday the center of Tropical Depression 30W was located at latitude 11.6°N and longitude 145.7°E which put it about 110 miles (185 km) south-southeast of Guam.  It was moving toward the northwest at 27 m.p.h. (43 km/h).  The maximum sustained wind speed was 35 m.p.h. (55 km/h) and there were wind gusts to 45 m.p.h. (75 km/h).  The minimum surface pressure was 1003 mb.  Tropical Depression 30W is forecast to strengthen and it could take track similar to the path of Typhoon Trami.

Remnants of Tropical Storm Haikui Make Landfall in Vietnam

The remnants of Tropical Storm Haikui made landfall near Da Nang, Vietnam late on Monday.  At 10:00 p.m. EDT on Monday the center of Tropical Depression Haikui were located at latitude 17.0°N and longitude 108.2°E which put it about 20 miles (30 km/h) north of Da Nang, Vietnam.  Haikui was moving toward the west at 5 m.p.h. (8 km/h).  The maximum sustained wind speed was 25 m.p.h. (40 km/h) and there were wind gusts to 35 m.p.h. (55 km/h).  The minimum surface pressure was 1003 mb.

The remnants of Tropical Storm Haikui consists of primarily of a low level counterclockwise circulation.  There are several thin bands of low clouds and showers.  Stronger thunderstorms were forming near the core of the circulation.  It appeared that winds blowing toward the coast were converging due to increased friction caused by the land.  The convergence was causing stronger rising motion which was contributing to the development of strong thunderstorms near and to the west of the center of circulation.

The remnants of Tropical Storm Haikui will move inland before significant intensification can occur.  The remnants of Haikui could drop locally heavy rainfall over portions of Vietnam, southern Laos and northeastern Thailand.  Locally heavy rainfall could cause flooding in some places.

Tropical Storm Haikui Weakens Southeast of Hainan Island

Tropical Storm Haikui weakened as it moved southeast of Hainan Island on Saturday.  At 10:00 p.m. EST on Saturday the center of Tropical Storm Haikui was located at latitude 17.6°N and longitude 112.6°E which put it about 290 miles (470 km) east of Da Nang, Vietnam.  Haikui 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 999 mb.

A combination of drier air and strong vertical wind shear weakened Tropical Storm Haikui on Saturday.  Strong northeasterly winds transported colder drier air from eastern Asia into the circulation of Tropical Storm Haikui.  The drier air reached the core of the circulation and it prevented the formation of new thunderstorms around the center of circulation.  Strong westerly winds in the upper levels were blowing over the top of the circulation.  The combination of northeasterly winds in the lower levels and westerly winds in the upper levels produced strong vertical wind shear.  The wind shear blew the upper portion of the circulation to the east of the low level core of Tropical Storm Haikui.  The core of Tropical Storm Haikui consists of a circular rotation of showers and low clouds.  The only thunderstorms are occurring in a rainband on the northeastern periphery of the circulation.

The strong wind vertical wind shear and drier air should continue to weaken Tropical Storm Haikui.  Haikui is likely to weaken to a tropical depression on Sunday.  Since the circulation exists primarily in the lower levels, it will be steered by the winds closer to the surface of the Earth.  The northeasterly winds in the lower levels will steer Tropical Storm Haikui toward the west- southwest.  On its anticipated track Tropical Storm Haikui will pass south of Hainan Island.  Haikui or its remnants could reach the coast of Vietnam in 36 to 48 hours.

Tropical Storm Haikui Moves Across South China Sea

Tropical Storm Haikui moved across the South China Sea on Friday.  At 10:00 p.m. EST on Friday the center of Tropical Storm Haikui was located at latitude 17.8°N and longitude 115.4°E which put it about 485 miles (785 km) east of Da Nang, Vietnam.  Haikui was moving toward the west-northwest at 8 m.p.h. (13 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 994 mb.

Tropical Storm Haikui strengthened slightly on Friday, but the circulation remained asymmetrical.  Most of the stronger thunderstorms were occurring east of the center of circulation.  A short primary rainband wrapped around the eastern side of the center.  Several other broken bands of showers and thunderstorms formed to the east of the primary rainband.  Bands of showers and storms were also located south of the center of circulation.  Storms near the core of Tropical Storm Haikui were generating some upper level divergence which was pumping mass away to the east of the tropical storm.  The bands in the western half of the circulation consisted primarily of low clouds and showers.

Tropical Storm Haikui will move through an environment marginally favorable for intensification during the next 24 to 36 hours.  Haikui will move over water where the Sea Surface Temperature is near 29°C.  Colder, drier air over eastern Asia was flowing toward the western side of Tropical Storm Haikui.  The upper level westerly winds of the middle latitudes were blowing just to the northwest of Tropical Storm Haikui.  Those winds were causing moderate vertical shear over the northwestern periphery of Haikui.  The winds over the core of Tropical Storm Haikui were weaker.  If Tropical Storm Haikui remains south of the stronger westerly winds, it could intensify a little more during the next 24 hours.

A ridge to the north of Haikui is steering the tropical storm toward the west-northwest.  The ridge is forecast to strengthen and Tropical Storm Haikui is likely to move more toward the west during the next several days.  On its anticipated track Tropical Storm Haikui will pass south of Hainan Island in about 48 hours.  Tropical Storm Haikui could reach the coast of Vietnam in less than three days.

Tropical Storm Haikui Develops Over the Philippines

Tropical Storm Haikui developed over the Philippines on Thursday.  At 4:00 p.m. EST on Thursday the center of Tropical Storm Haikui was located at latitude 14.6°N and longitude 119.8°E which put it about 50 miles (80 km) west-southwest of Manila, Philippines.  Haikui was moving toward the west-northwest at 13 m.p.h. (21 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).  Thee minimum surface pressure was 998 mb.

A center of circulation developed within an area of showers and thunderstorms over the Philippines and the Japan Meteorological Agency designated the system as Tropical Storm Haikui.  The circulation of Tropical Storm Haikui is still organizing.  Several areas of showers and thunderstorms are east and south of the center of circulation.  Broken bands of showers and storms are beginning to form farther away from the center.  There are fewer showers and thunderstorms in the western half of the circulation.

Tropical Storm Haikui will be moving through an environment that is somewhat favorable for intensification.  Haikui will move over water where the Sea Surface Temperature is near 29°C.  An upper level ridge centered northeast of the Philippines is producing easterly winds which are blowing toward the top of the circulation.  Those winds are causing moderate vertical wind shear.  Tropical Storm Haikui will move toward the western end of the ridge and the winds will blow from the southwest at that point.  So, the direction of the wind shear will change.  If Haikui stays far enough south, it will pass south of the stronger upper level winds and the tropical storm could intensify.

The ridge northeast of the Philippines is steering Tropical Storm Haikui toward the west-northwest and that general motion is expected to continue for several more days.  On its anticipated track Tropical Storm Haikui will move away from the Philippines across the South China Sea.  Haikui could approach Hainan Island in a few days.

Typhoon Nock-ten Moves South of Manila

Typhoon Nock-ten moved across southern Luzon and weakened on Sunday.  At 10:00 p.m. EST on Sunday the center of Typhoon Nock-ten was located at latitude 13.8°N and longitude 120.9°E which put it near Batangas and about 75 miles (120 km/h) south-southeast of Manila, Philippines.  Nock-ten was moving toward the west at 18 m.p.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 956 mb.

Typhoon Nock-ten weakened when the center moved over parts of southern Luzon.  Increased friction slowed the wind and areas of higher terrain temporarily disrupted the lower level circulation.  In addition easterly winds in the upper levels appeared to increase.  The increased vertical wind shear contributed to making the circulation more asymmetrical.  More of the thunderstorms formed in the western half of the circulation and there were fewer storms east of the center of circulation.

Typhoon Nock-ten will remain in a favorable environment for another day or so.  When Nock-ten moves west of Luzon into the South China Sea, it will move over water where the Sea Surface Temperature is near 29°C.  Typhoon Nock-ten could maintain its intensity or weaken slowly during the next 24 hours.  After that time Typhoon Nock-ten will move into an environment where the upper level winds are stronger.  Increased vertical wind shear will weaken the circulation.

A subtropical ridge to the north of Nock-ten is steering the typhoon toward the west and that general motion is expected to continue for another day or two.  The center of Typhoon Nock-ten passed near Catanduanes Island.  The center then moved near Tabaco, Ligao, Burias Island, San Francisco, and Marinduque Island.  The center is near Batangas.  It will move across Lake Taal and Lubang Island before it passes into the South China Sea.  Typhoon Nock-ten will continue to produce gusty winds and locally heavy rain as the center passes south of Manila.