Affected by the easterly jet stream, heavy to heavy rains occurred in many places in Hainan, and the Wanning Reservoir increased its flood discharge flow
AI-generated summary
Hainan Island is affected by the easterly jet stream, and the cold air and the South China Sea tropical system work together to cause heavy rainfall in autumn.
During the day today (9th), heavy to heavy rains occurred in most parts of Hainan Island, and heavy rains occurred in parts of the southeast. Rainfall is expected to continue in Hainan Island today and tomorrow, so please take precautions.
The Hainan Provincial Meteorological Bureau continued to issue a level four heavy rain warning at 16:40 on October 9: Affected by the easterly jet stream, in the past 24 hours, most towns and villages in four cities and counties, including Qiongzhong, Qionghai, Tunchang and Wanning, have experienced 150 mm rainstorms. For the above heavy rainfall, it is expected that from 17:00 on the 9th to 08:00 on the 10th, some towns and villages in three cities and counties including Qiongzhong, Qionghai and Wanning will still receive 50 to 100 mm of precipitation; most other cities and counties will receive 10 to 40 mm of rainfall.
Why does Hainan experience widespread precipitation? Hu Xiao, a meteorological analyst with the China Meteorological Administration, said that this time it is a typical rainstorm weather situation in Hainan in autumn. The cold air brings obvious northeasterly winds, and the activity of tropical systems in the South China Sea brings obvious southeasterly winds. Therefore, Hainan will be affected by the easterly jet stream under the combined influence of cold and warm air, resulting in strong rainfall.
Red rainstorm warnings were issued in many places in Hainan. The Lingshui Li Autonomous County Meteorological Observatory changed the orange rainstorm warning signal to red at 15:52 on October 9: affected by the easterly jet stream, the rainfall in Guangpo Town has reached 249.8 mm in the past 24 hours. It is expected that in the next 6 hours, there will still be 40-80 mm of precipitation in Yelin Town, Guangpo Town, Benhao Town, and Timeng Township, and 30-60 mm in the remaining towns. It is recommended that relevant units and personnel take precautions.
The Qionghai Meteorological Observatory changed the orange rainstorm warning signal to red at 14:42 on October 9: Affected by the easterly jet stream, rainfall in Huishan Town has reached 191.4 mm in the past 12 hours. It is expected that there will still be 60-120 mm of precipitation in Shibi Town, Zhongyuan Town, Boao Town, Yangjiang Town, Longjiang Town, and Huishan Town in the next 6 hours. It is recommended that relevant units and personnel take precautions.
The Meteorological Observatory of Qiongzhong Li and Miao Autonomous County changed the orange rainstorm warning signal to red at 08:53 on October 9: Affected by the easterly jet stream, rainfall in Yinggen Town has reached 155 mm in the past 12 hours. It is expected that in the next 12 hours, there will still be 100-150 mm of precipitation in various towns. It is recommended that relevant units and personnel take precautions.
The Wanning Meteorological Observatory continued to issue a red rainstorm warning signal at 07:14 on October 9: Affected by the easterly jet stream, rainfall in Sangengluo Town has reached 150.9 mm in the past 12 hours. It is expected that in the next 8 hours, Dong'ao Town, Nanqiao Town, There will still be 50-100 mm of precipitation in Xinglong District, Sangengluo Town, Wancheng Town, Liji Town, Shimei-Riyue Bay, Dahuajiao-Laoyehai, Zhengmenhai-Xiaohai. It is recommended that relevant units and personnel take precautions and suspend classes at all levels and types of schools.
In addition, Tunchang issued an orange rainstorm warning signal: Tunchang County Meteorological Observatory continued to issue an orange rainstorm warning signal at 09:09 on October 9: Affected by the easterly jet stream, the rainfall in Nanlu Town has reached 55 mm in the past 6 hours. It is expected that there will still be 80-150 mm of precipitation in various towns in the next 8 hours. It is recommended that relevant units and personnel take precautions.
Hainan Wanning Reservoir increases flood discharge flow. Affected by the easterly jet stream, Wanning City has initiated a red rainstorm warning. In order to coordinate the reservoir's flood control safety, the Wanning Reservoir will increase flood discharge at 16:30 on October 9, and the discharge flow will increase to 600m³/s~800m³/s. Subsequently, the discharge flow will be adjusted based on actual rainfall conditions and upstream water inflow into the reservoir.
How to effectively prevent rain and avoid danger in different scenarios? While driving: If you encounter standing water, try to avoid it. Do not start the vehicle again after it is turned off. When the water level rises, abandon the vehicle immediately and move to higher ground. On the road: Avoid waterlogged roads, culverts, underpasses and sunken overpasses. If you cannot tell the depth of the water, do not rush through it. Stay away from billboards, trees, telephone poles, and transformers. In mountainous valleys: stay away from ravines, rivers, steep slopes and cliff edges. If you hear unusual water sounds or see the water level rising or becoming muddy, move to higher ground immediately. Don't rush into the mountains after the rain stops. Flash floods, landslides, and mudslides may occur later.
AI outlook — possibilities, not facts
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The Central Meteorological Observatory predicts that there will be rain and snow in northern Xinjiang and the Qinghai-Tibet Plateau in the next three days, and there will be rainfall in places from the eastern part of Northwest China to the western part of North China. From the 11th, cold air will affect the northern region. Most of the north will have a temperature drop of 4 to 6 degrees Celsius, and the local temperature drop can reach 8 to 12 degrees Celsius, accompanied by winds of magnitude 4 to 5 and gusts of magnitude 6 to 8.
The China Weather Network reports that the central and eastern regions will mainly have sunny weather today with relatively high temperatures. In the next few days, the warmth will continue in the south of the Yangtze River and in southern China. However, the north will be affected by cold air and experience increased rainfall and significant cooling, so it is necessary to add more clothes in time.
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