Is there a fire tornado?

Fire whirlwind, also known as fire monster and fire whirlwind, refers to the rare phenomenon that when a fire occurs, the temperature and thermal gradient of the air meet certain conditions, and the flame forms a vertical vortex and inserts straight into the sky like a whirlwind. Rotating flames mostly occur in jungle fires. Flames vary in height from 30 to 200 feet and last for a limited time, usually only a few minutes, but they can last longer if the wind is strong.

Actual case

1. Fire tornado in Wisconsin, USA

18711kloc-0/On October 8th, a forest fire swept across the banks of Grimbe Bay in the northeast of Wisconsin, killing 1000 people.

At the beginning of that year 10, it was a typical sunny and warm weather in late autumn in India: the breeze blew and the air was warm and dry. In the past few weeks, there have been many bush and forest fires here, most of which were caused by a large number of branches left by loggers. When the wind is light, workers and people nearby can still control the fire. However, 10 June 8 was Sunday, and the southwest wind increased, which made many small fires develop into raging fires. At the same time, the temperature rose significantly. According to the observation records of Milwaukee Station, the highest temperature on 10 year 10 was 19℃ on October 7th, but it rose to 28℃ on October 8th in 65438. By the evening of October 8th, 65438+ year/KLOC-0, two major forest fires were slowly advancing from the vicinity of Grimbe to the northeast. Although the residents tried their best to put out the fire and tried to stop it from spreading, the fire was ruthless, and a large number of houses were destroyed in the only way, and all villages from Franken in the east to Peshti in the west were burned down. [6]

2. Fire tornadoes in California

On June 5438+065438+1October 65438+May, 2008, a fire tornado gradually approached the residential area in Corona, California, USA. Where the fire whirlwind passes, it will ignite the objects in the area, and it can also throw burning debris around. The airflow formed by the huge fire tornado is also very dangerous, and its wind speed can reach 160 km/h, which is enough to blow down trees.

3. Fire tornado in Sao Paulo, Brazil

20 10 on August 24th, residents of Sao Paulo, Brazil photographed a rare natural phenomenon of "fire tornado". This natural phenomenon is due to the tornado passing through the burning field and then turning into a huge burning "fire dragon".

It hasn't rained for three months in the area where the fire whirlwind appeared. Unusually dry weather and strong winds contributed to the fire here. Brazil's Global TV reported that the air dryness in Sao Paulo has caught up with the Sahara desert.

This "Dragon Wind" flew several meters in the burning field, blocking a expressway. In order to put out this "fire dragon", local helicopters were dispatched. At the same time, in order to prevent new fires, the municipal government of S? o Paulo has ordered the prohibition of burning crops after wheat harvest.

4. Australian fire tornado

According to the British report, on September 17, 2065438, a 30-meter-high fire tornado appeared in Alice Springs, Australia. According to eyewitness Chris, the fire tornado lasted for more than 40 minutes. The "fire tornado" appeared in the remote inland, causing no casualties.

5. Fire tornado in Missouri, USA

On May 3, 20 14, an American woman photographed the rare phenomenon of "fire tornado", and the scene was spectacular. While Koplin was driving with his daughter and friends around St. Joseph, Missouri, a local farmer was burning fields. To Koplin's great surprise, a "fire dragon" appeared in the field, soaring into the sky. It turned out to be a rare "fire tornado" phenomenon. Koplin stopped the car, took this spectacular scene and shared it online. "This is the coolest and scariest thing I have ever seen," Koplin said.

From Baidu Encyclopedia