A snowstorm in northern Japan overturned the roof of a building. Is the power of the storm really so great?

Japan Broadcasting Association TV reported that on June 16, due to the influence of a new round of cold air, northern Japan was hit by strong winds and snowstorms. The roofs of many buildings in Hakodate, Hokkaido were overturned by strong winds, and a local primary school was suspended. In some coastal areas of Hokkaido, seawater enters city streets, and many houses and office buildings are flooded. We can't help but marvel at the power of the snowstorm. How powerful is a strong snowstorm? The following is a detailed introduction:

First, this snowstorm is a typhoon, so before it landed, the energy loss was very small, and it often became more powerful and destructive. It's scary just to listen. Presumably, many people and buildings will suffer when it lands, because even before it really arrives, many areas have already suffered from the aftermath of the typhoon, and the situation is bleak. There was a tornado in northern Japan, and the Japan Meteorological Agency rated the tornado as level 3 according to the disaster situation of buildings, which is also the strongest level in Japan's storm intensity evaluation system. In addition, the Japan Meteorological Agency recently issued an early warning that there will be heavy rainfall in western Japan in the next two days, and the rainfall in Kyushu and Feng Jingen will reach 100 to 200mm per hour. The earthquake-stricken areas in Osaka will also see rain, and the Meteorological Agency reminds local residents to guard against secondary disasters such as mudslides. Tornado weather suddenly appeared in a Dao Jiang in the northern part of Okinawa Island. The duration of the tornado is about 1 min, and the speed is about 70 meters per hour, causing damage to several local buildings and even the iron roof of the warehouse being blown into the sky.

2. Japanese meteorologists believe that this snowstorm was influenced by the El Nino phenomenon that started in the middle of 20 15. El Nino is an abnormal climate phenomenon caused by the abnormal increase of water temperature in the equatorial Pacific. The Pacific low pressure system entering northern Japan carried more energy, and it was southerly than in previous years, so the area around the capital Tokyo became the center of this snowstorm. Global warming may also have enhanced the power of this snowstorm to some extent. This year, the water temperature in some parts of the Atlantic Ocean off the east coast of northern Japan is about 3 degrees Celsius higher than the average level, which leads to the increase of water vapor in the atmosphere, which in turn leads to the increase of snowfall. The high water temperature in the Atlantic Ocean is caused by natural fluctuation and global warming.

3. A low-pressure system formed in the Pacific Ocean landed in the western part of northern Japan and moved eastward into Texas, where it absorbed a lot of warm water vapor from the Gulf of Mexico and then moved northward, and then entered the eastern part of northern Japan, bringing persistent snowstorms. Another low-pressure system formed between Canada and Greenland moves southwest, bringing cold air to the northeast of northern Japan. The encounter between the two formed this large-scale snowstorm that lasted for more than 30 hours. Class 3 tornadoes have only occurred four times since 196 1 started counting. There have been frequent natural disasters in Japan recently. Osaka was hit by an earthquake with a magnitude of 6. 1 after a tornado in Okinawa, and heavy rainfall will come to western Japan from 19. The rainfall in southern Kyushu will reach 200 mm per hour.