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Tropical Storm Khanun Brings Wind and Rain to Kyushu

Tropical Storm Khanun brought wind and rain to Kyushu on Tuesday. At 11:00 p.m. EDT on Tuesday the center of Tropical Storm Khanun was located at latitude 31.2°N and longitude 129.1°E which put it about 85 miles (135 km) west-southwest of Kagoshima, Japan. Khanun was moving toward the northwest at 7 m.p.h. (11 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 979 mb.

Bands in the eastern side of Tropical Storm Khanun brought winds and rain to Kyushu on Tuesday. There was an elliptical area of relatively clear skies at the center of Khanun’s circulation. A broken ring of thunderstorms with a diameter of 70 miles (110 km) surrounded the relatively clear area. The strongest winds were occurring in that ring of storms. Bands of showers and thunderstorms were revolving around the center of Tropical Storm Khanun. Storms near the center generated upper level divergence that pumped mass away from the tropical storm. Winds to tropical storm force extended out 175 miles (280 km) from the center of Khanun’s circulation.

Tropical Storm Khanun will move through an environment that will be somewhat favorable for intensification during the next 24 hours. Khanun will move over water where the Sea Surface Temperatures are near 28˚C. It will move through a region where the upper level winds are weak and there will be little vertical wind shear. Tropical Storm Khanun could intensify a little during the next 24 hours.

Tropical Storm Khanun will move around the western part of a high pressure system over the Western North Pacific Ocean. The high pressure system will steer Khanun toward the northwest during the next 24 hours. On its anticipated track, Tropical Storm Khanun will make landfall in South Korea in less than 24 hours. Khanun will bring gusty winds and locally heavy rain to South Korea. Heavy rain could cause flash floods in some locations. Bands in the eastern side of Tropical Storm Khanun will continue to produce gusty winds and locally heavy rain in Kyushu during the next 24 hours.

Elsewhere over the Western North Pacific Ocean, Tropical Storm Lan intensified east of Iwo To. At 11:00 p.m. EDT on Tuesday the center of Tropical Storm Lan was located at latitude 24.4°N and longitude 146.6°E which put it about 335 miles (540 km) east of Iwo To. Lan was moving toward the west at 7 m.p.h. (11 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.

Tropical Storm Khanun Moves Toward Kyushu

Tropical Storm Khanun started to move toward Kyushu on Monday. At 11:00 p.m. EDT on Monday the center of Tropical Storm Khanun was located at latitude 29.1°N and longitude 130.7°E which put it about 195 miles (315 km) south of Kagoshima, Japan. Khanun was moving toward the north-northwest at 5 m.p.h. (8 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 981 mb.

Tropical Storm Khanun weakened on Monday. There still were no thunderstorms near the center of Khanun’s circulation. A large, mostly clear area was at the center of Tropical Storm Khanun. There were bands of showers and lower clouds within the mostly clear area. A broken ring of thunderstorms with a diameter of 90 miles (145 km) surrounded the mostly clear area. The strongest winds were occurring in the broken ring of storms. Storms in the ring generated upper level divergence that pumped mass away from the tropical storm. There were also bands of showers and thunderstorms outside the broken ring. Winds to tropical storm force extended out 200 miles (325 km) from the center of Tropical Storm Khanun.

Tropical Storm Khanun will move through an environment that will be somewhat favorable for intensification during the next 24 hours. Khanun will move over water where the Sea Surface Temperatures are near 28˚C. It will move through a region where the upper level winds are weak and there will be little vertical wind shear. If Tropical Storm Khanun intensifies during the next 24 hours, it is likely to strengthen slowly, because of the lack of thunderstorms in the inner core of its circulation. If thunderstorms form closer to the center of Khanun’s circulation, then it could start to intensify a little faster.

Tropical Storm Khanun will move around the western part of a high pressure system over the Western North Pacific Ocean. The high pressure system will steer Khanun toward the north-northwest during the next 24 hours. On its anticipated track, The center of Tropical Storm Khanun will be west of Kyushu in 24 hours. Bands in the eastern side of Tropical Storm Khanun will produce gusty winds and locally heavy rain in Kyushu. Heavy rain could cause flash floods in some locations.

Elsewhere over the Western North Pacific Ocean, Tropical Storm Lan formed southeast of Japan. At 11:00 p.m. EDT on Monday the center of Tropical Storm Lan was located at latitude 24.6°N and longitude 148.8°E which put it about 485 miles (780 km) south of Kagoshima, Japan. Lan was moving toward the northwest at 5 m.p.h. (8 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 988 mb.

Tropical Storm Khanun Still Spinning South of Japan

Tropical Storm Khanun was still spinning over the Western North Pacific Ocean south of Japan on Sunday night. At 11:00 p.m. EDT on Sunday the center of Tropical Storm Khanun was located at latitude 27.9°N and longitude 131.1°E which put it about 260 miles (415 km) south of Kagoshima, Japan. Khanun was moving toward the east-southeast at 5 m.p.h. (8 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 Khanun did not change much on Sunday. There was still a large circular area that was mostly clear at the center of Khanun’s circulation. There were bands of showers and lower clouds within the mostly clear area. A broken ring of thunderstorms with a diameter of 170 miles (280 km) surrounded the mostly clear area. The strongest winds were occurring in the broken ring of storms. Storms in the ring generated upper level divergence that pumped mass away from the tropical storm. There were also bands of showers and thunderstorms outside the broken ring. Winds to tropical storm force extended out 235 miles (380 km) from the center of Tropical Storm Khanun.

Tropical Storm Khanun will move through an environment that will be somewhat favorable for intensification during the next 24 hours. Khanun will move over water where the Sea Surface Temperatures are near 28˚C. It will move through a region where the upper level winds are weak and there will be little vertical wind shear. However, Tropical Storm Khanun may not intensify during the next 24 hours, because of the lack of thunderstorms in the inner core of its circulation. The large circulation around Tropical Storm Khanun could remain in an equilibrium with its environment and the intensity may not change much during the next 24 hours..

Tropical Storm Khanun will move around the western part of a high pressure system over the Western North Pacific Ocean. The high pressure system will steer Khanun slowly toward the north during the next 24 hours. On its anticipated track, Tropical Storm Khanun will start to move toward Kyushu. The center of Khanun’s circulation could be near southern Kyushu in less than 36 hours. Tropical Storm Khanun will continue to produce strong, gusty winds and locally heavy rain in the northern Ryukyu Islands. Prolonged heavy rain will cause flash floods in some locations. Bands in the northern side of Khanun could bring gusty winds and heavy rain to parts of Kyushu on Monday.

Tropical Storm Nanmadol Brings Wind and Rain to Japan

Tropical Storm Nanmadol brought wind and rain to Japan on Sunday. At 11:00 p.m. EDT on Sunday the center of Tropical Storm Nanmadol was located at latitude 34.5°N and longitude 131.9°E which put it about 30 miles (50 km) west of Hiroshima, Japan. Nanmadol was moving toward the north-northeast 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 976 mb.

Former Typhoon Nanmadol weakened to a strong tropical storm as it moved inland over Kyushu on Sunday. The circulation around Tropical Storm Nanmadol was still large. Winds to tropical storm force extended out 275 miles (445 km) from the center of Nanmadol. The strongest winds and heaviest rain were occurring in band in the eastern and northern parts of Nanmadol. Bands in the southern and western parts of Tropical Storm Nanmadol consisted primarily of showers and lower clouds.

The eye of then Typhoon Nanmadol moved over Kagoshima earlier on Sunday. A weather station in Kagoshima measured a surface pressure of 940.8 mb. The same weather station also measured 7.10 inches (180 mm) of rain. Heavy rain fell over many other locations in Kyushu and there were reports of flash floods in some locations.

An upper level trough northwest of Japan will steer Tropical Storm Nanmadol quickly toward the northeast during the next 36 hours. On its anticipated track Tropical Storm Nanmadol will move over much of Honshu. Nanmadol will bring gusty winds and locally heavy rain to Shikoku and Honshu. Heavy rain could cause flash floods in some locations.

Typhoon Nanmadol Brings Strong Wind and Heavy Rain to Kyushu

Typhoon Nanmadol brought strong winds and heavy rain to Kyushu on Sunday morning. At 5:00 a.m. EDT on Sunday the center of Typhoon Nanmadol was located at latitude 31.1°N and longitude 130.6°E which put it about 40 miles (65 km) south of Kagoshima, Japan. Nanmadol was moving toward the north-northwest at 12 m.p.h. (19 km/h). The maximum sustained wind speed was 110 m.p.h. (175 km/h) and there were wind gusts to 130 m.p.h. (210 km/h). The minimum surface pressure was 969 mb.

The center of Typhoon Nanmadol was moving inland over Kyushu on Sunday morning. Nanmadol was a large an powerful typhoon. Winds to typhoon force extended out 75 miles (120 km) from the center of Nanmadol. Winds to tropical storm force extended out 250 miles (400 km) from the center of circulation. The Hurricane Intensity Index (HII) for Typhoon Nanmadol was 19.2. The Hurricane Size Index (HSI) was 30.2 and the Hurricane Wind Intensity Size Index (HWISI) was 51.1. Typhoon Nanmadol was capable of causing extensive serious damage.

Typhoon Nanmadol will move around the western end of a high pressure system over the Western North Pacific Ocean during the next 12 hours. The high pressure system will steer Nanmadol toward the north during that time. On its anticipated track the center of Typhoon Nanmadol will continue to move farther inland over Kyushu. Nanmadol will continue to produce strong gusty winds and locally heavy rain to Kyushu. Heavy rain is likely to cause flash floods in some locations. The westerly winds in the middle latitudes will Nanmadol toward the northeast later today. Typhoon Nanmadol will move over Honshu tomorrow. Nanmadol will bring strong winds and heavy rain to much of Honshu and Shikoku, when it moves northeastward.

Typhoon Nanmadol Near Yakushima

The center of Typhoon Nanmadol was near Yakushima on Saturday night. At 11:00 p.m. EDT on Saturday the center of Typhoon Nanmadol was located at latitude 30.2°N and longitude 130.8°E which put it about 90 miles (145 km) south of Kagoshima, Japan. Nanmadol was moving toward the north-northwest at 14 m.p.h. (22 km/h). The maximum sustained wind speed was 120 m.p.h. (195 km/h) and there were wind gusts to 150 m.p.h. (240 km/h). The minimum surface pressure was 951 mb.

The eye of Typhoon Nanmadol was just southeast of Yakushima on Saturday night. The northwestern part of the eyewall was over Yakushima. Bands on the northern side of Typhoon Nanmadol were producing gusty winds and locally heavy rain over Kyushu.

Nanmadol was a large typhoon. Winds to typhoon force extended out 70 miles (110 km) from the center of Typhoon Nanmadol. Winds to tropical storm force extended out 275 miles (445 km) from the center of circulation. The Hurricane Intensity Index (HII) for Typhoon Nanmadol was 22.1. The Hurricane Size Index (HSI) was 29.0 and the Hurricane Wind Intensity Size Index (HWISI) was 51.1. Typhoon Nanmadol was capable of causing widespread serious damage.

Typhoon Nanmadol will move around the western end of a high pressure system over the Western North Pacific Ocean during the next 24 hours. The high pressure system will steer Nanmadol toward the north during the next 24 hours. On its anticipated track the center of Typhoon Nanmadol will reach southwestern Kyushu in a few hours. Nanmadol will bring strong gusty winds and locally heavy rain to Kyushu. Heavy rain is likely to cause flash floods in some locations. The westerly winds in the middle latitudes will Nanmadol toward the northeast in a day or so. Typhoon Nanmadol will move over Honshu early next week. Nanmadol will bring strong winds and heavy rain to Honshu and Shikoku.

Tropical Storm Chanthu Spins between Japan and China

Tropical Storm Chanthu spun between Japan and China on Wednesday. At 5:00 p.m. EDT on Wednesday the center of Tropical Storm Chanthu was located at latitude 30.5°N and longitude 125.2°E which put it about 360 miles (585 km) west-southwest of Kagoshima, Japan. Chanthu was moving toward the northwest at 4 m.p.h. (6 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 991 mb.

Tropical Storm Chanthu remained nearly stationary on Wednesday as it spun over the East China Sea between Japan and China. The atmospheric environment around Chanthu became more favorable for intensification when an upper level ridge moved over the tropical storm. Chanthu strengthened when the upper level ridge enhanced the upper level divergence that pumped more mass away from the tropical storm. The enhanced upper level divergence also contributed to the formation of more thunderstorms in the bands revolving around the center of Tropical Storm Chanthu. A rainband wrapped most of the way around the center of Chanthu and a new eye appeared to be forming at the center of the tropical storm. Winds to tropical storm force extended out 190 miles (305 km) on the northern side of Chanthu. Winds to tropical storm force extended out 90 miles (145 km) in the southern half of the circulation.

Tropical Storm Chanthu will move through an environment somewhat favorable for intensification during the next 24 hours. Chanthu will move over water where the Sea Surface Temperature is near 27˚C. Chanthu could mix cooler water to the surface while it remains nearly stationary, which could inhibit intensification. The upper level ridge will continue to enhance divergence, which will be favorable for intensification. Tropical Storm Chanthu is likely to intensify during the next 24 hours and it could strengthen back to a typhoon.

The steering winds are weak in the middle of the upper level ridge and Tropical Storm Chanthu may not move much during the next 12 to 18 hours. An upper level trough over eastern Asia will move eastward on Thursday. The upper level trough will start to steer Chanthu toward the west in 12 to 18 hours. On its anticipated track Tropical Storm Chanthu could approach Kyushu in 30 hours. Chanthu could be a typhoon when it reaches Kyushu. It will bring strong, gusty winds and locally heavy rain. Heavy rain could cause flash floods in some locations.

Tropical Storm Lupit Brings Rain to Japan

Tropical Storm Lupit brought rain to Japan on Sunday. At 11:00 a.m. EDT on Sunday the center of Tropical Storm Lupit was located at latitude 32.3°N and longitude 131.6°E which put it about 20 miles (30 km) southwest of Miyazaki, Japan. Lupit was moving toward the east-northeast at 26 m.p.h. (42 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 990 mb.

Tropical Storm Lupit made landfall on the coast of Kyushu near Kagoshima on Sunday. Lupit was being steered quickly toward the east-northeast by an upper level trough near the Korean Peninsula. The trough was producing strong southwesterly winds that were blowing toward the top of Lupit’s circulation. Those winds were causing strong vertical wind shear and they were affecting the distribution of rain in Tropical Storm Lupit. Most of the heavier rain was falling in bands north and east of the center of Lupit. The heavier rain was falling over Shikoku, northern Kyushu and southwestern Honshu. Bands south and west of the center of circulation consisted primarily of showers and lower clouds. The strongest winds were occurring in the southern half of Tropical Storm Lupit. Winds to tropical storm force extended out 160 miles (260 km) on the south side of Lupit. The winds in the northern half of the circulation were blowing at less than tropical storm force.

The trough near the Korean Peninsula will steer Tropical Storm Lupit quickly toward the northeast during the next 36 hours. On its anticipated track the center of Lupit will move over the southern Sea of Japan. The center of Tropcial Storm Lupit could be near northern Honshu in 36 hours. Rain will spread over the rest of Honshu and Hokkaido during the next two days. Locally heavy rain could cause flash floods in some locations.

Tropical Storm Lupit will move through an environment only marginally favorable for intensification. Lupit will move over water in the Sea of Japan where the Sea Surface Temperatures are near 28°C. However, the upper level trough will continue to cause strong vertical wind shear. The lower part of Lupit’s circulation will also be disrupted while it passes over land. Tropical Storm Lupit is not likely to strengthen significantly and it could weaken if the center does not move over the Sea of Japan.

Elsewhere over the Western North Pacific Ocean, Tropical Storm Mirinae was moving eastward away from Japan. At 11:00 a.m. EDT on Sunday the center of Tropical Storm Mirinae was located at latitude 36.6°N and longitude 144.7°E which put it about 230 miles (370 km) east-northeast of Tokyo, Japan. Mirinae was moving toward the northeast at 18 m.p.h. (30 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 990 mb.

Tropical Storm Leepi Approaches Kyushu

Tropical Storm Leepi approached Kyushu late on Monday.  At 11:00 p.m. EDT on Monday the center of Tropical Storm Leepi was located at latitude 29.8°N and longitude 135.3°E which put it about 335 miles (545 km) east-southeast of Kagoshima, Japan.  Leepi was moving toward the northwest at 17 m.p.h. (28 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.

The circulation of Tropical Storm Leepi became much better organized on Monday.  A large circular clear area formed at the center of circulation, which represented the formation of an eye.  A primary band of showers and thunderstorms wrapped most of the way around the formative eye and the strongest winds were occurring in that band of storms.  Several bands of showers and thunderstorms in the eastern half of the circulation were revolving around the core of Tropical Storm Leepi.  Bands northwest of the center consisted mostly of showers and lower clouds.  Winds to tropical storm force extend out about 110 miles (170 km) from the center of circulation.  Storms around the center of Tropical Storm Leepi were generating upper level divergence that was pumping mass away from the tropical storm.

Tropical Storm Leepi will move through an environment that will become less favorable on Tuesday.  Leepi will move over water where the Sea Surface Temperature is near 28°C which means there will be enough energy to support a strong tropical storm.  However, an upper level ridge northwest of Japan will produce northeasterly winds which will cause significant vertical wind shear.  The wind shear will cause Tropical Storm Leepi to start to weaken when it nears Japan.

The ridge northwest of Japan will steer Tropical Storm Leepi toward the northwest on Tuesday.  On its anticipated track the center of Tropical Storm Leepi will reach southeastern Kyushu in about 18 hours.  Leepi will bring gusty winds and locally heavy rain to Kyushu late on Tuesday.  The locally heavy rain could create the potential for flash floods.

Elsewhere over the Western North Pacific Ocean, Tropical Storm Bebinca meandered southwest of Hong Kong and Tropical Storm Hector move westward across the International Date Line.  At 11:00 p.m. EDT on Monday the center of Tropical Storm Bebinca was located at latitude 21.1°N and longitude 113.8°E which put it about 100 miles (160 km) south-southwest of Hong Kong.  Bebinca was moving toward the north-northeast at 5 m.p.h. (8 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. (95km/h).  The minimum surface pressure was 989 mb.

At 11:00 p.m. EDT on Monday the center of Tropical Storm Hector was located at latitude 26.2°N and longitude 176.2°E which put it about 760 miles (1225 km) east-northeast of Wake Island.  Hector was moving toward the west at 18 m.p.h. (29 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 1003 mb.