China News Service, Beijing, April 25 (Chen Hang) On the 25th, the reporter learned from the Beijing Meteorological Department that the windy weather in Beijing began from the night of the 19th to the day of the 25th. It is expected that the wind will gradually weaken in the evening of the 25th and continue for many days. The windy weather is over and the temperature in Beijing will rebound in the coming week.
Affected by the continuous replenishment of the cold air heading south, the windy weather in Beijing started from the night of the 19th to the 25th during the day. The wind has a significant daily change. The daytime wind is relatively strong, with wind gusts of 7 to 9 levels. Level 7. Among them, the daytime winds were the strongest on the 20th and 21st, with more than 380 observation stations (accounting for 86% of the total number of stations) having gusts above 7 and 73 and 65 observation stations with gusts above 9 respectively.
According to Zhao Wei, chief forecaster of the Beijing Meteorological Observatory, the main reason for this sustained gale weather is that during a long-wave adjustment process in the East Asian Great Trough, there were continuous strong high-altitude low-vortex and low-trough development changes in Northeast China, resulting in North China The area has been under the control of the northwest airflow at the back of the trough (vortex). Under the guidance of the high-altitude northwest airflow, strong cold air has continued to go south to affect the city, resulting in several days of windy weather in Beijing, which is also in line with the windy spring in Beijing. Seasonal characteristics.
Zhao Wei said that it is expected that the wind will gradually weaken on the evening of the 25th, and the windy weather that lasted for many days will end. In the coming week, there will be no obvious cold air in Beijing. The weather will be mainly sunny to cloudy, the wind will be generally low, and the temperature will rise. The highest temperature will rise above 30 ° C on the 28th. (Finish)