Historical warning of gale blue warning signal

On May 5, 2007 16: 30, Shandong Meteorological Observatory issued a blue gale warning signal, saying that in the next 24 hours, there will be 6-7 gale in most parts of Shandong Province, with gusts reaching 8 in some areas and 9 in coastal areas. At 8 o'clock on June 5438+05, a strong wind began to blow in Jinan. The Provincial Meteorological Observatory issued an early warning signal in the afternoon, saying that in the next 24 hours, strong winds will blow in Shandong Peninsula, northwestern Shandong and central Shandong, with an average wind force of 6-7, of which the gust in the peninsula can reach 8 and the gust in the sea area dominated by the northern Yellow Sea can reach 9. The persistent windy weather in Shandong province will not stop until tomorrow, during which the temperature in the whole province will not drop significantly, but it will bring thunderstorm weather to northwest Shandong, central Shandong and peninsula. On June 6, 65438, the temperature in Shandong province, especially in the peninsula, will drop slightly after the south wind turns to the north wind during the day.

Put it down. Shandong Meteorological Observatory reminds relevant units and personnel to take precautions, pay attention to the reinforcement, management and prevention of outdoor animals that are easily affected by strong winds, and pedestrians should pay attention to falling objects from high altitude to hurt people; Ships going to sea should pay attention to returning to Hong Kong to avoid the wind. On April 2, 2007, the citizens of Nanning lived a little uneasy. At midnight the day before, many people received the blue warning signal of strong wind through their mobile phones. Everyone doesn't know how strong the "blue" signal represents, when and where the maximum wind force will appear, and what impact it will have on life. In fact, this is the first gale warning issued by Nanning since the early warning signal was implemented in July 2005. Nanning Meteorological Observatory issued a blue gale warning signal at 23: 40 on April 1 2007: It is predicted that some areas in Nanning will be affected by strong winds in the next 24 hours, with an average wind force of above 6 or a gust of above 7. However, during the day of April 2, some citizens called the Nanning Meteorological Observatory to complain that the wind was not as strong as the warning signal said. In this regard, experts from the Nanning Meteorological Observatory explained that windy weather has a lot to do with the terrain. For example, the terrain at the bell mouth will be stronger than the adjacent flat land, and the magnitude of the wind will change with time. On the evening of April 1 Sunday, the weatherman believed that this strong cold air had caused the strongest sandstorm in northern China this year, and there were also strong convective weather such as hail in Hunan, Guangdong and Fujian. At the same time, there was a strong wind of 6 ~ 8 in northern Guangxi, which was baptized by cold air for the first time. According to various conditions, they predicted that the maximum wind force in Nanning would reach level 6 in the next 24 hours, and issued corresponding warning signals. At noon on April 2, a strong wind of magnitude 7 was also measured in Fengling, Nanning. Gale blue warning signal is the weakest one among gale warning signals. With the strengthening of the wind, there are three colors: yellow, orange and red. Strong cooling is accompanied by strong winds, but because the cold air comes too fast and too fierce, the warm and humid airflow is no match at all, so the probability of rainfall in Nanning is not great. At 3: 30 pm on April 2, the Nanning Meteorological Observatory lifted the blue warning of strong wind. However, the forecast shows that cold air will continue to dominate Nanning from April 3 to 5, with a minimum temperature of 12℃ ~ 15℃. From April 6th, the temperature will obviously rise again.