The weather forecast bulletin of the Taiwan Meteorological Administration (CWA) said that tropical depression No. 19 (called tropical depression Igme in the Philippines) will bring extremely heavy rain to Taipei and the eastern, central and southern areas of the island on September 23.
The CWA issued a tropical depression warning (TD19) at 1:00 p.m. (local time) on September 22. The warning said the center of the tropical depression was located at about 24.9 degrees north latitude, 119.1 degrees east longitude, with the strongest wind near the center at 43 km/h, gusting to 72 km/h, pressure of 1002 hPa. The tropical depression is moving west-northwest at 5 km/h.
Although TD19 has weakened, the CWA said the prolonged impact of the system and peripheral clouds could continue to bring heavy rain.
According to the CWA, the tropical depression under the influence of the low pressure system will lead to strong gusts at sea. Ships traveling in the area are advised to pay attention to safety.
According to the China Times, heavy rain is expected in the northern, central and southern regions, and heavier rain in the afternoon and evening.
The CWA said heavy rains are also forecast for remote islands such as Kim Mon, Matsu and Penghu. In addition, heavy rains are likely to cause landslides, rockfall and rising streams in mountainous areas. Low-lying areas should also pay attention to accumulated rainfall and the possibility of flooding.
High temperatures in many areas will range from 28 to 30 degrees Celsius, a slight decrease after nightfall, and are likely to reach 24 to 26 degrees Celsius. Outdoor temperatures will cooler as the rain continues.
International typhoon forecast models indicate that the tropical depression will weaken and dissipate as it moves west-northwest through Fujian province (China) on September 23.
The China Meteorological Administration issued a yellow thunderstorm warning (the second lowest on a four-level scale) across parts of southeastern China on September 23.
Heavy to extremely heavy rain is expected across the region, with the highest rainfall of about 250-270 mm expected in the eastern coastal areas of Fujian province.
Prolonged heavy rains can cause flooding in low-lying areas and areas with easily overloaded drainage systems. If weather conditions become dangerous, local evacuation, flash floods and landslides may occur.
Meanwhile, the Vietnam National Center for Hydro-Meteorological Forecasting said that from the night of September 22 to September 23, in Thanh Hoa and Nghe An, there will be moderate rain, heavy rain, locally very heavy rain with rainfall from 30-70mm, locally over 130mm.
In the area from Ha Tinh to Thua Thien Hue, there will be moderate rain, heavy rain, locally very heavy rain with common rainfall from 40-80mm, some places over 150mm.
From September 24, heavy rain will gradually decrease in the Central provinces.