
AI-generated summary
Hainan Province is susceptible to weather processes that are jointly affected by tropical cyclones and cold air, which can easily trigger heavy rainfall and strong winds, so precautions need to be strengthened.
China News Service, Haikou, September 12 (Fu Xiaohong and Wu Chunwa) The Hainan Provincial Meteorological Observatory forecast on the 12th that the South China Sea Tropical Depression will make landfall on the coast of central Vietnam from the afternoon to the night of the 13th. Affected by the combined influence of the tropical depression and cold air, there will be a strong wind and rain weather process in Hainan Province from the 12th to the 15th.
According to monitoring statistics, due to the combined influence of tropical disturbances and cold air, from 08:00 on September 11 to 08:00 on September 12, a total of 36 towns (districts) in 6 cities and counties including Wanning and Lingshui in Hainan received more than 50 mm of rainfall, with the maximum rainfall of 184.4 mm in Liji Town, Wanning City.
According to monitoring, the center of the South China Sea Tropical Depression was on the western South China Sea about 330 kilometers south of Sanya City, Hainan Province at 8:00 on the 12th. The maximum wind force near the center was level 6 (13 meters/second). It is expected to move slowly north-west at a speed of 5 to 10 kilometers per hour, with little change in intensity.
The forecast says that Hainan Island will experience heavy rainfall from the 12th to the 15th due to the combined influence of tropical low pressure and cold air in the South China Sea. Among them, from the 12th to the 14th, there were heavy to heavy rains and local heavy rains in the central and eastern parts of Hainan Island, and heavy to heavy rains in other areas. On the 15th, there were heavy to heavy rains, local heavy rains in the southeastern part of Hainan Island, and light to moderate rains in the remaining areas.
The Hainan Provincial Meteorological Department reminded that relevant departments should conduct safety inspections of small and medium-sized reservoirs, roads and bridges, and geological disaster hazard points, as well as risk prevention work for urban and rural waterlogging, farmland waterlogging, small and medium-sized river floods, flash floods, geological disasters, and mountain and water tourism.
In addition, from the 12th to the 14th, most sea areas in Hainan Province experienced gusts of magnitude 8 to 9. It is recommended that passing ships, fishing boats, and offshore operating platforms in the central and northern parts of the South China Sea need to quickly take shelter from the wind. (over)

The tropical disturbance in the South China Sea intensified into a tropical depression on the morning of the 12th. The Hainan Provincial Meteorological Bureau issued a Level 4 typhoon warning and a Level 4 heavy rain warning. The Hainan Provincial Disaster Prevention, Reduction and Relief Committee initiated a Level 4 flood and wind prevention emergency response, requiring some cities and counties to immediately initiate emergency response. Other cities and counties strengthened consultations and judgments, and issued notices on defense work.
Affected by tropical disturbances in the South China Sea and easterly winds transporting water vapor, rainfall in Hainan, Guangdong and other places will significantly intensify today and tomorrow, with heavy rainstorms in local areas, and secondary disasters need to be guarded against. Precipitation is scarce in most areas of the north, and many places are experiencing good autumn weather. The temperature difference between day and night exceeds 10°C or even 15°C, making it suitable for travel.
The Central Meteorological Observatory forecast that there will be heavy rainfall in Hainan, Yunnan, Tibet and other places yesterday, and there will be wind and rain in southern South China and the southern sea in the next three days. Hainan has strong local rainfall and needs to prevent secondary disasters from heavy rain; it will be rainy in West China and Tibet; eastern Inner Mongolia, Heilongjiang, Jilin and other places need to prevent strong convective weather such as local wind and hail.

Today and tomorrow, the northeast monsoon will gradually weaken, and the water vapor will decrease and the temperature will rise; from Monday, the northeast monsoon will strengthen again, and the north and northeast will turn to cloudy and sometimes cloudy showers, and the temperature will drop slightly. The central, southern and southeastern areas will have little impact, and it will still be cloudy to sunny with local brief thundershowers in the afternoon, and it will be hot during the day and have a large temperature difference between morning and evening.

The Central Meteorological Administration pointed out that the northeast monsoon weakened today, and it was still slightly cooler in the morning and evening in various places. On the windward side, there were local brief showers on the north coast of Keelung, the eastern half, the Hengchun Peninsula and greater Taipei. It was cloudy to sunny in other areas, and there were also local showers in the afternoon. The temperature difference between day and night was large in the western half, with daytime temperatures rising to 32 and 33 degrees south of Taoyuan, and high temperatures in the eastern half. Maintained at 30 and 31 degrees; in terms of air quality, the central part is "orange alert", the north, Zhumiao, Yunjianan, Gaoping and other places are "average", Yilan and Huadong are "good"; the northeast monsoon will increase or decrease in the next week, the high temperature in northern Taiwan will drop slightly, and there will still be local showers in the afternoon in many places. The development of the Pacific low pressure in the later period needs to be paid attention to.

Meteorological experts pointed out that the first wave of northeast monsoon will gradually weaken today and tomorrow, and the water vapor will decrease and the temperature will rise. However, there will still be heavy rainfall in places in Greater Taipei and the eastern half. The second wave of northeast monsoon will affect it from Monday to Wednesday. The tropical disturbance in the South China Sea is expected to move towards Vietnam and will not develop into a typhoon.