On June 26, due to the unstable atmosphere and sufficient energy, combined with the low-level southwest jet, the "dragon water absorption" appeared in the offshore area of Shenzhen observatory. This natural wonder has attracted a lot of people's attention. Do you know why this phenomenon occurs? What is the reason why the Dragon absorbs water?
The phenomenon of "water absorption by dragon" in Shenzhen coastal waters
Affected by the unstable air flow at the edge of the subtropical high, showers and thunderstorms are common in Shenzhen. Among them, Kuixin station in Dapeng new area recorded the maximum precipitation of 23.9mm. It is expected that the weather will be hot to extremely hot in 27-30 days, and local short-term hot thunderstorms are likely to occur in the afternoon, with the maximum temperature of 33-34 ℃ and local temperature of 35 ℃ or above.
According to the Shenzhen Meteorological Observatory, in the case of unstable atmosphere and sufficient energy, the combination with the low-level southwest jet provides certain conditions for the emergence of tornadoes. From 6:37 to 6:55 on the morning of the 26th, the monitoring equipment of Shenzhen Observatory completely recorded the phenomenon of "dragon sucking water".
According to reports, 'dragon water absorption' is a tornado that appears over warm water. Its upper end is connected with thunderstorm clouds, and its lower end extends directly to the water surface. The air rotates rapidly around the axis of the tornado. Attracted by the extremely reduced air pressure in the center of the tornado, the water flow is drawn into the bottom of the vortex, and then becomes a vortex around the axis upward.
The Pearl River Delta is a tornado prone area
The Pearl River Delta is a tornado prone area. According to statistics, an average of 5.2 tornadoes occur every year, causing serious casualties in history. In recent years, tornadoes have been observed several times in the coastal areas of Baoan and Guangming New District in the northwest of Shenzhen.
Tornadoes are also quite destructive. Experts from Shenzhen meteorological observatory pointed out that tornadoes have the characteristics of strong outburst, small scope, fast moving speed and great destructive power. The average diameter is 200-300m, and the service life is usually only a few minutes to dozens of minutes, not more than a few hours at most. Its moving speed can reach 15 meters per second on average and 70 meters per second at most. Where tornadoes pass, it is easy to break trees and houses.
In addition, the weather will be extremely hot in the next 4-5 days. Please pay attention to sunstroke prevention and sun protection, and try to avoid outdoor activities during the high temperature period around noon.
Outdoor high-temperature operators shall supplement water in time to avoid heatstroke.
In addition, food is easy to deteriorate in hot weather. Please pay attention to the storage of food to avoid food poisoning caused by deteriorated food.