How did the tornado come about? How did the typhoon come from? Why is there this?

Typhoon is a kind of tropical cyclone. In meteorology, according to the definition of the World Meteorological Organization, a tropical cyclone with a sustained wind speed of 12 (that is, more than 32.7 meters per second) is called a hurricane or a local synonym, and the name of a hurricane is used in the North Atlantic and the East Pacific; Typhoon is a synonym for the western North Pacific (north of the equator, west of international date line, east of east longitude 100).

In Taiwan Province Province, Japan and other places, tropical cyclones (including tropical storms, severe tropical storms and typhoons defined by the World Meteorological Organization) with sustained wind speed exceeding17.2m per second are called typhoons. On informal occasions, "typhoon" even refers to all tropical cyclones that appear in the western North Pacific, including tropical depression, tropical storm, strong tropical storm and typhoon.

Tornado:

Tornadoes, also known as tornadoes, dragons absorb water, etc. , is a rather violent weather phenomenon, which is formed by rapid rotation and vertical hollow tubular airflow. Tornadoes vary in size, but they are generally funnel-shaped. The funnel is connected with the cumulonimbus cloud (in rare cases, it is the bottom of the cumulonimbus cloud), and the lower part is usually in contact with the ground and often surrounded by a cloud of dust or debris.

Most tornadoes are about 75 meters in diameter, and the wind speed is between 64 kilometers per hour and 177 kilometers per hour, which can sweep thousands of meters. There are some tornadoes whose wind speed can exceed 480 km/h, their diameter is larger than 1.6 km, and their moving path is larger than 100 km.

Tornado and typhoon speed:

A tornado is a strong wind vortex accompanied by a funnel-shaped cloud column rotating at high speed. The wind speed near the tornado center can reach 100 m/s to 200 m/s, with a maximum of 300 m/s, which is several times larger than the maximum wind speed near the typhoon center. The central air pressure is very low, generally as low as 400 hectopascals and as low as 200 hectopascals.

1979, 10, 12, the wind speed in the center of Taipei in the northwest Pacific is 306km/h, the lowest pressure is 870hPa, and the circulation width is 2 174km, which is enough to cover half of the United States.

References:

/JC/ckzl/zrdl/20090 1/ 1458 . html