Former Typhoon Matmo made landfall along the east coast of Taiwan Tuesday night, local time, with winds over 100 mph.
Matmo then crossed Taiwan and emerged over the Formosa Strait (Taiwan Strait), before making a second landfall in Fujian Province, China, late Wednesday afternoon, local time.
Matmo has since weakened and will transition into a post tropical storm as it continues to move inland across eastern China Thursday morning.
Rain fell in torrents across Taiwan, accumulating 100-150 mm (4-6 inches) per hour in some cases.
The hardest-hit areas in the mountains of eastern Taiwan have received more than 650 mm (25.60 inches) of rain since Tuesday.
Heavy rain also fell across Lanyu Township, just east of the main island of Taiwan on Tuesday. Rainfall of 250-300 mm (10-12 inches) was reported. Also, wind gusts over 100 mph pelted the small island for several hours as the eye of the storm passed just to the northeast.
Even with the typhoon now moving into China, heavy rains will continue to lash parts of Taiwan through Wednesday night.
Even though the most of the rain has already fallen across Taiwan from this cyclone, any additional rain on already saturated areas will extend the threat for mudslides into Thursday.
While the heaviest rain fell across the higher terrain of the east and interior, rainfall of 50-100 mm (2-4 inches) fell around Taipei along with wind gusts near 100 kph (62 mph).
While further weakening will occur, areas from Fujian Province through southern Zhejiang and northeast Jiangxi Provinces will be at the greatest risk for heavy rain and locally damaging winds through Thursday, local time. Rainfall of 75-150 mm (3-6 inches) is expected.
While Matmo will not make landfall in the Philippines, northern parts of the country have had to deal with rounds of locally heavy rainfall. Rainfall has averaged 50-100 mm (2-4 inches) with local amounts over 150 mm (6 inches).
Rammasun brought damaging wind and flooding rainfall to many of these same areas less than a week ago.
After pushing into eastern China, Matmo will be pulled northward by a trough, tracking west of Shanghai across the interior of China. This interaction with land and the trough to the north will begin to weaken the cyclone further through Thursday.
A northeast turn will eventually take Matmo into the Korean Peninsula later this week where heavy rain and flooding will be major concerns. Rainfall amounts of 75-150 mm (3-6 inches) are expected across northern South Korea, including Seoul as well as southern and central North Korea.
Impacts from Matmo will be well to the north of southern China and northern Vietnam, areas that were recently impacted by Rammasun just days ago.
AccuWeather.com Meteorologist Alan Reppert and Jordan Root contributed to this story.
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