Beijing Meteorological Observatory issued a blue rainstorm warning at 13:00 on July 15, 2024: It is predicted that from 17:00 on July 15 to 20:00 on July 16, the city will experience heavy rainfall with hourly rainfall exceeding 30 mm. In some areas, rainfall will exceed 50 mm in 6 hours . Secondary disasters such as mountain torrents, mud and rock flows, and landslides induced by heavy rainfall may occur in mountainous and low-mountain areas. Water may accumulate in low-lying areas. Please take precautions. According to the weather forecast released by Beijing Meteorological Observatory at 11:00: Beijing will be cloudy with moderate rain tonight, moderate to heavy rain in the western and northern parts, local heavy rain, accompanied by thunder and lightning , south wind level 1 or 2, and the lowest temperature will be 22℃. There will be significant rainfall from today to tomorrow evening, especially in the western and northern parts. Please pay attention to lightning protection, rain avoidance and traffic safety, and pay attention to the upcoming forecast and warning information. Today is the first day of the dog days, and we are about to usher in the main flood season from the end of July to the beginning of August . During this period, we must be careful to prevent floods and secondary disasters caused by strong convective weather such as heavy rain, thunderstorms, and strong winds. Why is there more rainfall in the north during the period from the end of July to the beginning of August? Generally, from late July to early August, the northern edge of the summer monsoon advances to North China, and at the same time, the subtropical high pressure moves northward to 34°~38° north latitude. Water vapor is continuously transported northward through the southwest side of the subtropical high pressure. Once this warm and humid air flow meets the cold air moving eastward and southward, it is easy to form heavy and continuous precipitation. This is what the meteorological and flood control departments call "the end of July and the beginning of August." "The end of July and the beginning of August" is the period with the most concentrated precipitation in my country. During this period, the amount of precipitation in northern my country increases significantly, making floods and secondary disasters prone to occur, such as urban waterlogging, mountain torrents, landslides, mud-rock flows, etc. How to avoid risks during heavy rain? What secondary disasters may occur? We would like to remind everyone again that during summer travel, try to avoid traveling to mountainous areas, rivers and other areas prone to geological disasters, pay more attention to the upcoming weather forecast, and pay attention to rain protection and traffic safety. Comprehensive sources: Ministry of Emergency Management, Beijing Daily, etc. |
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