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Posts tagged Tropical Storm Malou

Tropical Storm Malou Northwest of Sasebo, Japan

33.2N 127.5E

September 7th, 2010 Category: Tropical Storms

Tropical Storm Malou (10W) - September 6th, 2010

Track of TS 10W - September 6th, 2010 © Univ. of Wisconsin

Track of TS 10W

Tropical Storm Malou (10W), located approximately 65 nm northwest of Sasebo, Japan, has tracked northeastward at 10 knots over the past six hours.

The main image shows convection associated with Malou to the west of Japan. The entire system can be observed in the animated image.

TS 10W has maximum sustained winds with speeds of 40 knots, and higher gusts of up to 50 knots. Maximum significant wave height is 16 feet.

Tropical Storm Malou (10W) Expected to Track Across Cheju Island – September 6th, 2010

29.5N 128.6E

September 6th, 2010 Category: Image of the day, Tropical Storms

Tropical Storm Malou (10W) - September 5th, 2010

Track of TS 10W - September 5th, 2010 © Univ. of Wisconsin

Track of TS 10W

Enhanced image

Enhanced image

Tropical Storm Malou (10W), located approximately 110 nm south of Cheju Island, has tracked northward at 11 knots over the past six hours. Maximum significant wave height is 21 feet.

Animated infrared satellite (IR) imagery continues to show multiple low level vortices cyclonically rotating into the main area of deep convection.

IR satellite imagery, as well as two microwave passes, reveal a majority of the deep convection is being sheared to the northeast of the main low level circulation center (LLCC).

The current intensity is based on Dvorak estimates ranging from 35 to 45 knots. Upper level analysis shows enhanced poleward outflow associated with a mid-latitude trough to the north of the system.

TS 10W is currently tracking poleward along the western extent of a low-to mid level subtropical steering ridge. It is forecast to track across Cheju Island and intensify slightly due to favorable outflow conditions.

Near TAU 24, Malou will make landfall in southwestern South Korea and weaken as it begins to be absorbed into the baroclinic boundary. By TAU 48, TS 10W is forecast to complete extra-tropical transition.

Tropical Storm Malou (10W) Expected to Make Landfall Over Seoul, South Korea

September 5th, 2010 Category: Tropical Storms

Tropical Storm Malou (10W) - September 4th, 2010

Track of TS 10W - September 4th, 2010 © Univ. of Wisconsin

Track of TS 10W

Enhanced image

Enhanced image

Tropical Storm Malou (10W) is located approximately 320 nm south of Cheju Island, and has tracked north-northwestward at 15 knots over the past six hours. Maximum significant wave height is 16 feet.

Animated infrared satellite imagery shows increased deep convection developing over the low level circulation center (LLCC) with low level banding wrapping into the system from the northwest and southeast.

The imagery and the convective asymmetry of the system indicate stronger winds along the eastern flank of the system associated with the tight pressure gradient. Current intensity is about 35 knots, with 25 to 30 knot winds at the system center.

Upper level analysis reveals TS10W is in a region of enhanced diffluence aloft associated with its proximity to the diffluent region of the upper level low over Taiwan. The system is currently tracking along the southwestern periphery of a western extension of a low to mid-level steering ridge.

Malou is forecast to continue tracking north-northwestward through TAU 36, then begin to turn poleward as an approaching mid-latitude trough erodes the ridge. The system is forecast to gradually intensify through TAU36, then weaken as it interacts with the mid-latitude westerly flow near TAU 48. The system is expected to make landfall south of Seoul, South Korea, and rapidly weaken as it becomes absorbed into the baroclinic boundary.

Tropical Storm Malou (10W) Passes Over Japan’s Ryukyu Islands – September 4th, 2010

29.0N 128.2E

September 4th, 2010 Category: Image of the day, Tropical Storms

Tropical Storm Malou (10W) - September 3rd, 2010

Enhanced image

Track of TS10W - September 3rd, 2010 © Univ. of Wisconsin

Track of TS 10W

Convection Associated with TS10W

Parts of Japan, China and North Korea will again become the target of a tropical system in the upcoming days. The danger this time is at the hands of Tropical Storm Malou (10W).

Malou is currently a minimal tropical storm churning northwestward through the northern Philippine Sea.

Here, the main image focuses on the eastern part of the storm, south of Japan (visible in the upper part of the full image). The thumbnail image shows convection associated with Malou, to the west of its center, over mainland Asia. The entire system can be observed in the animated image.

Malou will continue on that heading into Friday evening EDT, tracking across Japan’s Ryukyu Islands in the process. Bands of torrential rain and gusty winds will increase today across the Ryukyu Islands as Malou approaches. Tropical storm-force winds will begin howling this afternoon, mainly over the island of Okinawa.

The gusty winds and torrential rain will persist into this evening as Malou passes by. The winds will be of minimal tropical storm force, but they will still be capable of causing some tree damage and power outages. Any loose lawn items would easily be blown around.

Malou will enter the East China Sea on Saturday, but heavy rain will continue to drench the Ryukyu Islands occasionally. Some additional rain could fall on Sunday as moisture wraps into the center of Malou.

The upcoming soaking across the Ryukyu Islands threatens to trigger flooding, especially since the islands where just inundated by Typhoon Kompasu on Tuesday.

After leaving the Ryukyu Islands, Malou will press northwestward through the East China Sea this weekend. The tropical storm should then reach the Yellow Sea early next week. During this time, Malou will strengthen into a stronger tropical storm. It is also possible that Malou will reach minimal typhoon status.

There are concerns that Malou will curve northeastward towards the border of China and North Korea, where landfall may occur by the middle of next week. Strong winds high in the atmosphere, also known as wind shear, should increase across Malou just prior to landfall. That should keep Malou from being a powerful typhoon when it moves inland and could even lead to some weakening. The negative aspect of the wind shear is that it should act to push Malou’s torrential rain onshore well ahead of the storm’s actual landfall. The rain could spread over northeastern China and North Korea as early as Tuesday.

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