What are the maximum land typhoons? What is the maximum typhoon?

The maximum wind force is only 17, and the maximum Pu wind scale is only 17.

According to the notice of the China Meteorological Administration on the implementation of the national standard for tropical cyclone classification GBT 19201-2006, tropical cyclones are divided into six levels according to the maximum wind force on the ground near the center

Tropical depression – winds of magnitude 6 and 7 near the centre, or gusts of 7 or more.

Tropical storm – winds of force 8 and 9 near the center, or gusts of force 9 and may continue.

Severe Tropical Storm – Winds of force 10 11 near the centre, or gusts of force 11 and likely to continue.

Typhoon – winds of 12 13 near the center, or gusts of 13 and likely to continue.

Strong typhoon – winds of 14 15 near the center, or gusts of 15 and likely to continue.

Super typhoon – winds of 16 or above near the centre, or gusts of 17 and trembling may continue.

Typhoons are classified according to the strength of the wind, and the higher the wind level, the higher the typhoon level. Wind force refers to the mechanical force obtained from the wind, which is simply explained as the force of the wind. The wind rating is based on the speed of the wind, and the faster the wind speed, the higher the wind rating.

When the wind reaches 6 or more, it is a strong wind, and this level of wind has a certain power, and when the wind level reaches 12 or more, it can be completely called a typhoon. Typhoons have a very destructive power, and whenever a typhoon appears, it is accompanied by heavy rain, causing great trouble to human society.

Formation of typhoons.

The formation of a typhoon requires the following conditions: the sea surface water temperature is above; a certain initial perturbation of positive vorticity; The ambient wind has less shear in the vertical direction; Low pressure or cloud disturbances at least a few degrees of latitude from the equator. Since the formation of typhoons is not well understood today, the above list is only necessary for the formation of typhoons.

The initial stage of a typhoon is a tropical depression, from the initial low pressure circulation to the maximum average wind force near the center of the eight, generally takes about 2 days, the slow one takes three or four days, and the fast one only takes a few hours. During the development phase, the typhoon continuously absorbs energy until the central pressure reaches the lowest value and the wind speed reaches the maximum. After the typhoon makes landfall on land, it will be affected by the combined impact of ground friction and lack of energy, and the typhoon will quickly weaken and die.

Typhoons are a category of tropical cyclones. The largest typhoon scale at the moment.

is level 17. Typhoons can be divided into typhoons, strong typhoons and super typhoons according to the grinding source level.

Winds near the center of the typhoon are 12 to 13, or gusts.

Level 13 and may last. Strong typhoon – winds of 14 15 near the center, or gusts of 15 and likely to continue. In the vicinity of Super Typhoon, winds of 16 or above, or gusts of 17 and can be touched.

In general, a typhoon blue warning signal will be issued if it is likely to be affected by a tropical cyclone within 24 hours, and the average wind force along the coast or on land reaches 6 or above, or gusts of 8 or more and may continue.

Typhoons are ranked from highest to lowest, with the strongest being 16 or higher and the lowest being 6-7. However, the maximum level of the major meteorological services is now 17 or above. The details are as follows:

tropical depression (tropicaldepression), maximum wind speed 6 7, ( m s);

Tropical storm (tropicalstorm), maximum wind speed 8 9, (;

Severe tropical storm, maximum wind speed 10 11, (;

Typhoon (ty-phoon), maximum wind speed 12 13, (;

Severe typhoon with a maximum wind speed of 14 and 15 (;

Super typhoon with a maximum wind speed of 16 ( .

Typhoon central pressure

The normal central pressure is associated with a typhoon. The area where the isobaric line is closed and the central air pressure is lower than the surrounding air pressure is called low air pressure. Large air vortices that occur in areas of low pressure are called cyclones.

The area where the isobars are closed and the central air pressure is higher than the surrounding air pressure is called high air pressure. Large air vortices that occur in areas of high pressure are called anticyclones.

Weather conditions, the central air is prone to clouds and rain during the rising process, so it is common for rainy weather to occur when the cyclone is transiting. Typhoons along the southeast coast of China in summer and autumn are a special form of intense tropical cyclone development.

In the process of sinking the central air, due to the increase in temperature, the water vapor gradually evaporates, and it is not easy to form clouds and cause rain, and the weather is sunny, hot and dry in summer, and cold and dry in winter. The drought in the Yangtze River basin in China was formed under the control of the subtropical high pressure anticyclone.

Influence of land and sea distribution on atmospheric circulation: Due to the difference in thermal properties between land and sea, the pressure zone and wind belt are destroyed, forming the center of sea and land pressure activity in winter and summer, and then forming the monsoon circulation.

Typhoon is a type of tropical cyclone, which is divided into six levels: super typhoon, severe typhoon, typhoon, severe tropical storm, tropical storm, and tropical depression according to the maximum wind speed on the surface near the center. A super typhoon with winds of 16 or higher is considered a super typhoon, and the highest wind level of a typhoon is 17 or higher.

The so-called super typhoon refers to the maximum average wind speed near the center of the bottom layer of 51 meters per second or greater, which is the most violent tropical cyclone in the northwest Pacific Ocean. That is, the maximum sustained wind speed of 160 kilometers per hour near the center is extremely destructive, and there is almost no grass left in its reach, which is extremely rare on land. On the surface of the sea, the waves over 14 meters are extremely huge waves, and the huge waves on the sea surface are so mothropy, and the visibility is very low.

What to do in case of typhoon weather.

1. Close doors and windows, and properly place outdoor items that are susceptible to typhoon winds. For example, it is better to park the car in the garage, of course, it is better to insure the car in advance.

2. Residents should not go out at will, and ensure that the elderly and children stay at home.

3. Kindergarten children and school students should be placed in the classroom and outdoor activities should be suspended.

4. Outdoor workers should stop work and should immediately take shelter indoors.

5. Outdoor personnel should not enter isolated sheds, sentry boxes and other buildings, or take shelter from typhoons under chimneys, telephone poles or large trees in high-rise buildings, and try to find a solid place to take shelter, especially in the event of thunder and lightning.

6. While preparing for typhoons, we should also prepare for lightning protection.

The highest level of typhoon can reach 16 or above near the center of Jian Xiao, which is called a super typhoon. There are six levels of typhoons: tropical depression, tropical storm, severe tropical storm, typhoon, severe typhoon and super typhoon.

Tropical depression with maximum wind speed of 6-7. Tropical storm with maximum wind speed of 8 and 9. Severe tropical storm with maximum wind speed of 10 and 11.

Typhoons are purest with high winds of 12 and 13. Strong typhoon with a maximum wind speed of 14-15. Super typhoon with a maximum wind speed of 16.

Summary. The force of the wind refers to the amount of force that the wind shows when it hits an object. Generally, according to the various phenomena caused by the wind blowing on the ground or water surface, the wind force is divided into 13 levels, with the minimum being 0 and the maximum being 12.

According to the national standard of "wind level" issued by China in June 2012, according to the wind speed at a height of 10 meters in the standard meteorological observation field, the wind level is divided into 18 levels, and there are three commonly used units to express wind speed, namely nautical mile hours, meter seconds, and kilometers per hour, and the commonly used units in typhoon forecasting in China are meter seconds.

The force of the wind refers to the amount of force that the wind shows when it hits an object. According to the various phenomena caused by the wind blowing on the ground or water surface, the wind force is divided into 13 levels, with the minimum being 0 and the maximum being 12. According to the national standard of "Wind Grade" issued by China in June 2012, the wind speed is divided into 18 levels according to the wind speed at a height of 10 meters in the standard meteorological observation leakage zone, and there are three commonly used units to express wind speed, namely nautical mile hours, meter seconds, and kilometers per hour, and the commonly used unit for typhoon forecasting in China is meter seconds.

In 2001, the China Meteorological Administration (CMA) issued the Regulations on Typhoon Operations and Services, supplementing typhoons above 12 to 17 on the Beaufort wind scale. Category 12 typhoon is set at meter seconds; Level 13 is meter seconds; Level 14 is a meter with core seconds, level 15 is a meter second, level 16 is a meter second, and level 17 is a meter second. In the typhoon in Qionghai 30 years ago, the maximum wind near the center was 73 meters per second, which exceeded the highest standard of 17 stupid blockades.

It is called 18, which is also a common saying in the international maritime community about a mega typhoon.