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Tropical Storm 07W Near Philippines

15.2N 124.4E

July 17th, 2009 Category: Tropical Storms

Tropical Storm 07W - July 16th, 2009

Tropical Storm 07W - July 16th, 2009

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Track of TS 07W - July 16th, 2009 © Univ. of Wisconsin

Track of TS 07W

The Western Pacific Ocean its now experiencing its third tropical depression this week. Tropical Storm 07W, referred to in the Philippines as “Isang” will skirt the eastern side of the main island this week before a landfall in China over the weekend.

Although Tropical Storm Isang (07W) isn’t expected to make a landfall in the northern Philippines it is expected to bring heavy rainfall as it passes by.

Tropical Storm 07W is now located approximately 280 nautical miles east-northeast of Manila, Philippines, and has tracked northwestward at 9 knots over the past 6 hours. The subtropical ridging northeast of the system remains the dominant steering influence, helping to maintain the northwest track.

Deep convection remains persistent over the low level circulation center (LLCC). In the most recent multispectral imagery, a secondary LLCC is identifiable to the northeast of TS 07W and appears to have spun off from the main circulation.

The upper level analysis indicates that the system remains in a weakly diffluent region, and that the upper level outflow appears to be the major hindrance to stronger development. Maximum significant wave height is 11 feet.

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