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Double Flood Threat for Flood Wary China

By pydynowskik
August 28, 2010, 10:04:29 AM EDT

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A slow moving, strengthening tropical storm and another tropical low will produce a double flood threat in China over the next several days. The low is the immediate concern and threatens to unleash torrential rain on the nation's recently flood-ravaged northeastern area.

The tropical low is currently churning over the Yellow Sea and is heading northward.


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The low's torrential rain will take aim on the northeastern Chinese province of Liaoning and neighboring parts of North Korea into Monday EDT.

The rain poses a serious danger to lives by triggering widespread flooding and mudslides. Recent torrential rain has made eastern Liaoning and nearby North Korea extremely vulnerable to new flooding problems.

Heavy rain soaked the border of China and North Korea a week ago. The Chinese town of Kuandian Manzu was inundated with nearly 15 inches of rain from August 19th to the 22nd.

The heavy rain brought the Yalu River (or Amnok River as it's known in North Korea) out of its banks. AccuWeather.com Meteorologist Eric Leister reported this past weekend that the rising waters punctured a dike that usually protects Dandong, China, from the river.

China's Other Tropical Concern

The tropical low headed to northeastern China is not the only tropical system that may impact the nation in upcoming days. A strengthening tropical storm is headed toward the southern Chinese coastline.

Tropical Storm 07W is currently churning in the South China Sea, southeast of Hong Kong.

The storm is moving to the northwest, but will gradually turn to the north over the next 12-24 hours and will gradually slow its forward progress.

The tropical storm may push inland along the southern Chinese coast, likely just east of Hong Kong, early Monday EDT. Heavy rain would be the main impact in this scenario to Hong Kong, though winds may gust between 30-40 mph.

It is also possible that the system will stall just offshore. The system would then have an opportunity to continue strengthening, potentially into a hurricane.

If this solution pans out, the exact weather pattern that unfolds next week would dictate the system's final landfall.

Uncertainty exists as to where that landfall point will be, but all residents along the southern Chinese coast and Taiwan should closely monitor the progress of this tropical storm.

Story by AccuWeather.com Senior Meteorologists Kristina Pydynowski and Rob Miller.

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