[Source: Chongqing Morning News]
On July 28, the Municipal Meteorological Bureau reported that due to the westward extension of the western Pacific subtropical high pressure and the remnant circulation of Typhoon "Gemei", it is expected that there will be heavy to heavy rains in central and eastern Chongqing during the day on the 30th. Precipitation is somewhat extreme. It is expected that the heavy rain in Chongqing will basically end on the 31st.
How did Typhoon "Gemei" hit Chongqing? How many days are you coming? Which areas in Chongqing are most affected? The reporter interviewed Wu Zhengqian, deputy chief forecaster of the Municipal Meteorological Observatory, to hear the answers from meteorological experts.
Why did “Gemei” come to Chongqing?
Wu Zhengqian said that the heavy rain process was mainly caused by the westward extension of the subtropical high pressure in the western Pacific, which caused the residual circulation of Typhoon "Gemei" to move westward to the Chongqing area, causing the accumulation of water vapor in the Chongqing area.
Data shows that from 20:00 on July 28 to 11:00 on July 29, the maximum rainfall occurred in Zhengshu Village, Xiushan, at 216.3 mm; the maximum hourly rainfall was 77 mm (Kaizhou Houba, 08:00 on the 29th). 35 rainfall stations in eight districts and counties: Zhongxian, Wanzhou, Kaizhou, Pengshui, Shizhu, Qianjiang, Youyang, and Xiushan experienced heavy rains. Fengdu, Zhongxian, Wanzhou, Kaizhou, Yunyang, Pengshui, Shizhu, Heavy rainfall occurred at 206 rainfall stations in 10 districts and counties of Qianjiang, Youyang and Xiushan.
"This Typhoon Gemei mainly affects the central and eastern areas of Chongqing. It has already caused heavy rains and heavy rainstorms in the central and eastern areas of Chongqing. The maximum rainfall reached 216.3 mm and appeared in Xiushan." Wu Zhengqian also mentioned that this time Rainfall is somewhat extreme.
Which areas have extreme weather?
"Currently, some areas of Chongqing have experienced precipitation of more than 200 mm, which is quite extreme. In some areas, the hourly rainfall intensity has reached 70 mm, which is highly disastrous." Wu Zhengqian added, "At present, Shizhu, Zhongxian, Wanzhou, Kaizhou and other places are more likely to experience extreme rainfall.”
How long will the heavy rainfall continue?
Wu Zhengqian said that currently, the residual circulation of Typhoon "Gemei" is slowly moving northward, and the residual circulation of Typhoon "Gemei" will still cause rainfall in some areas of Chongqing on the 30th. The remnant circulation of Typhoon Gemei will move to southern Shaanxi on the night of the 30th, and will then weaken significantly until it disappears.
After the 31st, affected by the outer circulation of the western Pacific subtropical high pressure, most areas of Chongqing will be cloudy, with showers or thunderstorms still occurring in some areas, and the temperature will rise to 37°C.
Cool weather will continue today and tomorrow, and high temperatures will return the next day.
According to the city meteorological observatory, there will be more showers or thunderstorms in Chongqing in the next three days. By the day of the 30th, there will be heavy rains to heavy rains in some parts of the central and eastern parts, and local heavy rains. The precipitation will be extreme. Light to moderate rain will occur in the remaining areas. Rainfall is accompanied by strong convective weather such as short-term heavy rainfall, local strong winds, thunder and lightning. By August 1, cloudy weather returns.
Weather forecast for the last three days
Today: cloudy in the west and west, showers or thunderstorms in other areas, heavy rainfall (30-60 mm) in the northeast and central areas, local heavy rain (100-120 mm), The temperature is 22℃~32℃; there will be showers in the central city, and the temperature is 26℃~31℃.
Tomorrow: Showers, light to moderate rain in areas south of the Yangtze River, local heavy rain (25-40 mm) in the southeast, showers or scattered showers turning cloudy in other areas, temperature 21°C-33°C; showers in central urban areas It will turn cloudy, with temperatures ranging from 25°C to 32°C.
The day after tomorrow: Showers or thunderstorms in areas south of the Yangtze River, cloudy to sunny in other areas, with temperatures of 22℃~36℃; cloudy in the central city, with temperatures of 26℃~36℃.
Experts recommend
Pay attention to guarding against short-term heavy rainfall
During this heavy rainfall, the cumulative rainfall in the eastern region was heavy, which was extreme and the risk of disasters was high. It is recommended to strengthen prevention of small and medium-sized river floods, flash floods and landslides caused by heavy rainfall. , mudslides, landslides, urban and rural waterlogging and other secondary disasters.
Pay attention to the possible adverse effects of short-term heavy precipitation, gusty winds, lightning and other strong convective weather on production safety in transportation, construction, hazardous chemicals, mining, tourism and other industries.