Knowledge about meteorological disaster icons
1. Symbols of various meteorological disasters
Tsunami warning levels are divided into levels I, II, III and IV, and the warning colors are red, orange, yellow and blue respectively. It means that the tsunami disaster is particularly serious, serious, heavy, and average.
Tsunami level I warning (red)
Affected by the tsunami, it is expected that tsunami wave heights above 3 meters (above normal tide level, the same below) will occur at coastal tide gauge stations and the shore section will be more than 300 kilometers When serious damage threatens life and property, a tsunami level I warning is issued.
Tsunami level II warning (orange)
Affected by the tsunami, when a tsunami wave height of 2 to 3 meters is expected to occur at the coastal tide gauge station, causing serious damage to some shore sections and endangering lives and property, A level II tsunami warning was issued.
Tsunami level III warning (yellow)
Issued when a tsunami is expected to cause tsunami wave heights of 1 to 2 meters at coastal tide gauge stations and damage to houses and ships in the affected areas Tsunami level III warning.
Tsunami level IV warning (blue)
Affected by the tsunami, when a tsunami wave height of less than 1 meter is expected to occur at the coastal tide gauge station and minor damage occurs in the affected area, a tsunami level IV warning will be issued .
2. There are several weather warning signal icons
Zheng Guoguang, director of the China Meteorological Administration, said that the 14 disaster warning signals specifically involve typhoons, heavy rains, snowstorms, cold waves, strong winds, sandstorms, High temperature, drought, thunder and lightning, hail, frost, heavy fog, haze, icy roads, etc.
The "Measures for the Release and Dissemination of Meteorological Disaster Early Warning Signals", which was officially implemented on June 12, contains 18 articles, including the types, levels, release entities, and construction of dissemination facilities of meteorological disaster early warning signals. Provisions have been made, and the "Meteorological Disaster Early Warning Signals and Defense Guidelines" attached to the "Measures for the Release and Dissemination of Meteorological Disaster Early Warning Signals" has specific provisions on the icons, standards and defense guidelines for 14 types of meteorological disaster early warning signals. The levels of early warning signals are generally divided into four levels based on the degree of damage, urgency and development trend that meteorological disasters may cause: level IV (general), level III (serious), level II (serious), and level I (especially serious). It is represented by blue, we, orange and red in turn, and is also marked in Chinese and English.
The meteorological department will determine the early warning signal levels of different types of meteorological disasters based on their characteristics and intensity. The China Meteorological Administration requires meteorological departments at all levels to actively seek the support of people at all levels and strengthen the construction of meteorological disaster early warning signal issuance and dissemination facilities, especially paying attention to remote mountainous areas and socially vulnerable groups, such as schools, kindergartens, nursing homes, and rural areas. The construction of early warning signal dissemination facilities will strive to ensure that disastrous weather warning information reaches as many groups as possible.
At the same time, we will strengthen cooperation with radio, television, telecommunications, urban construction and other departments, and use facilities such as TV and radio spots, mobile phone text messages, and electronic billboards in prominent urban areas to promptly release early warning signal information to ensure the communication transmission of early warning signals. Correct, smooth channels, and timely broadcast. In order to prevent and mitigate the adverse effects of meteorological disasters on people's life and property safety, economic construction and social development, and the natural environment, the China Meteorological Administration published the "Trial Measures for the Issuance of Early Warning Signals for Sudden Meteorological Disasters" in 2004.
By formulating unified national public warning standards and signals, this move avoids the inconsistencies in signals and standards that may cause trouble and mislead the public in disaster prevention and reduction. The warning signals issued at that time involved 11 types of sudden meteorological disasters, namely typhoons, heavy rains, high temperatures, cold waves, heavy fog, sandstorms, thunderstorms, strong winds, hail, snowstorms and icy roads.
3. Symbols of various meteorological disasters
Tsunami warning levels are divided into levels I, II, III and IV, and the warning colors are red, orange, yellow and blue respectively. It means that the tsunami disaster is particularly serious, serious, heavy, and average.
Tsunami Level I Alert (Red) Affected by the tsunami, it is expected that a tsunami wave height of more than 3 meters (above normal tide level, the same below) will occur at coastal tide gauge stations, severe damage to the shoreline of more than 300 kilometers, and endangering life and property. At the time, a tsunami level I warning was issued. Tsunami level II warning (orange) A tsunami level II warning is issued when a tsunami wave height of 2 to 3 meters is expected to occur at coastal tide gauge stations, causing serious damage to local shore sections and endangering lives and property.
Tsunami level III warning (yellow) Affected by the tsunami, a tsunami wave height of 1 to 2 meters is expected to occur at coastal tide gauge stations, and when houses and ships are damaged in the affected area, a tsunami level III warning is issued. Tsunami level IV warning (blue) A tsunami level IV warning is issued when a tsunami wave height of less than 1 meter is expected to occur at coastal tide gauge stations and minor damage occurs in the affected area.
Remember to accept it.
4. How to represent weather icons
China Meteorological Administration: sudden meteorological disasters composed of four colors of "blue, yellow, orange, and red" as well as graphics and Chinese and English characters Early warning signs.
When sudden natural disasters such as typhoons, heavy rains, and heavy fog strike, early warning signals with different colors representing different levels will appear in the Shanghai media in a timely manner.
The "Shanghai Trial Regulations on the Issuance of Severe Weather Warning Signals" that will be implemented on March 1 will build an early warning network for the city to deal with disaster weather, so that citizens can face "unexpected storms" with ease.
Shanghai is an area prone to disastrous weather such as typhoons and heavy rains. According to Yu Zhaoguo, director of the Shanghai Meteorological Bureau Office, in recent years, Shanghai has been attaching great importance to the prevention of disastrous weather, including taking corresponding early warning measures. However, the current release of disastrous weather warning information is not standardized enough and a unified early warning signal has not yet been formed. system and corresponding release procedures.
Shanghai’s “Trial Regulations” were formulated to change this situation. The early warning chart is concise and easy to understand. The radio and television stations broadcast the severe weather warning signal within 15 minutes. It is a severe weather warning information symbol produced by the meteorological station based on meteorological detection data and released to the public.
Shanghai’s disastrous weather warning signals are divided into five categories: typhoon, heavy rain, high temperature, low temperature and heavy fog. Among them, typhoons and heavy rains are each divided into three levels, represented by yellow, red, and black icons respectively; high temperature, low temperature, and fog are divided into two levels, represented by red and black icons respectively.
The formulation of these icons and grade standards is concise and eye-catching, making it easier for citizens to understand, and is also consistent with the grades and standards that were common in Shanghai in the past. Radio, television and other media will broadcast the warning signal information within 15 minutes after receiving the warning signal information issued or updated by the meteorological station.
Citizens can also receive relevant information from mobile phones and pagers.
5. Meteorological disaster forecast and warning symbols: heavy rain
Early warning signal classification standards and prevention 1. Heavy rain early warning signal Heavy rain early warning signals are divided into four levels, namely blue, yellow, orange, Indicated in red.
(1) Heavy rain blue warning signal Icon: Meaning: The rainfall in 24 hours will reach more than 50 mm, or has reached more than 50 mm and heavy rain may continue. Defense guidelines: 1. Parents, students, and schools should pay special attention to weather changes and take defensive measures; 2. Cover items to be dried in the open air, and relevant units should carry out drainage and waterlogging prevention work in low-lying and flood-prone areas; 3. Drivers should pay attention Ensure safety due to water accumulation on roads and traffic congestion; 4. Check drainage systems of farmland and fish ponds to reduce water levels in fish ponds that are prone to flooding.
(2) Heavy rain yellow warning signal icon: Meaning: The rainfall in 12 hours will reach more than 50 mm, or the rainfall in 24 hours will reach more than 75 mm, or it has reached more than 75 mm and there may be heavy rainfall. to heavy rain. Defense guidelines: 1. Parents, students, and schools should pay special attention to weather changes and take defensive measures; 2. Cover items to be dried in the open air, and relevant units should carry out drainage and waterlogging prevention work in low-lying and flood-prone areas; 3. Drivers should pay attention Ensure safety due to water accumulation on roads and traffic congestion; 4. Check the drainage systems of farmland and fish ponds to reduce the water level of fish ponds that are prone to flooding.
(3) Heavy rain orange warning signal icon: Meaning: The rainfall will reach more than 50 mm in 6 hours, or the rainfall will reach more than 75 mm in 12 hours, or the rainfall will reach more than 100 mm in 24 hours, or It has reached more than 100 mm and heavy to heavy rains may continue. Defense guidelines: 1. Suspend outdoor operations in open areas and stay indoors or in safe places to take shelter as much as possible; 2. Relevant emergency response departments and rescue units should strengthen their duties, closely monitor the disaster situation, cut off dangerous outdoor power supplies in low-lying areas, and implement Countermeasures; 3. The traffic management department should implement traffic guidance or control in waterlogged areas; 4. Move residents in dangerous areas and dilapidated buildings to safe places to take shelter from rain; 5. Other yellow rainstorm warning signals.
(4) Heavy rain red warning signal icon: Meaning: The rainfall will reach more than 100 mm in 6 hours, or the rainfall will reach more than 150 mm in 12 hours, or the rainfall will reach more than 200 mm in 24 hours. Or it has reached more than 100 mm and heavy to heavy rains may continue. Defense guidelines: 1. People should stay in safe places, and people outdoors should immediately take shelter in a safe place; 2. Relevant emergency response departments and rescue units are ready to initiate rescue and emergency plans at any time; 3. Schools with students and working staff , kindergartens and other relevant units should take special protective measures. Units in dangerous areas should suspend classes and operations, and immediately move to a safe place for temporary shelter; 4. Other orange warning signals are the same as heavy rain.
6. Meteorological knowledge, what are typhoons, heavy rains, and thunder and lightning
According to Zhang Guocai, Director of the Department of Prediction and Disaster Mitigation of the China Meteorological Administration and Director of the National Meteorological Center
, in the future, through TV and MMS mobile phones, residents everywhere will see blue, yellow, orange and red disastrous weather icons. That is the meteorological department reminding you to pay attention to the prevention of weather disasters. The degree is in order of normal, serious and severe. and are particularly serious. Based on these signals, residents should take corresponding measures.
The meteorological department will issue meteorological disaster warnings in four colors: "blue, yellow, orange, and red". Yesterday, reporters from China Meteorology The Bureau learned that our country has established an "urban meteorological disaster warning system" to respond to various disastrous weather and minimize the casualties and property losses caused by it.
According to reports, starting from September The issued early warning signals for sudden meteorological disasters consist of warning colors, graphics, and Chinese and English text. Disastrous weather early warning signals are divided into typhoons, heavy rains, high temperatures, cold waves, heavy fog, thunderstorms, strong winds, sandstorms, hail, snow disasters, and road accumulation. Ice and other eleven categories. Early warning signals are generally divided into four levels. According to the severity and urgency of the disaster, the colors are blue, yellow, orange and red, representing general, serious, serious and particularly serious respectively.
The establishment of meteorological disaster grade colors is only one of the contents of my country's "Urban Meteorological Disaster Warning System". According to reports, after unifying the national disastrous weather warning colors, the China Meteorological Administration also advocates that in the central and bustling areas of cities The region has set up a warning system, which includes weather warning towers, warning balloons, etc. to let people know the level of the disaster. At the same time, after the disaster weather forecast is issued, it will also be used in the shortest possible time through various forms such as television, radio, mobile phone text messages, the Internet, and audio stations. time to deliver the information to the largest number of people.
After the national urban meteorological disaster warning colors are released, Beijing will also follow the implementation. Yesterday, when reporters interviewed Guo Hu, director of the Municipal Meteorological Observatory, he introduced, " "Blue, yellow, orange and red" warning colors to mark various disaster weather will also be used in Beijing. However, because meteorological disasters and their intensity vary from place to place, the Beijing Meteorological Department will use these early warning signals according to its own conditions. According to Guo Director Hu said that currently, Beijing has established an "early warning system for sudden meteorological disasters", and the use of warning colors can better convey disastrous weather information to citizens in a timely manner.
7. Typhoon Weather map
(1) Typhoon blue warning signal icon: Meaning: It may be affected by tropical low pressure within 24 hours, with average winds reaching level 6 or above, or gusts above level 7; or it may have been affected by tropical low pressure , the average wind force is 6 to 7 levels, or the gusts are 7 to 8 levels and may continue.
(2) Typhoon yellow warning signal icon: Meaning: May be affected by a tropical storm within 24 hours, with average winds reaching level 8 or above, or gusts above level 9; or have been affected by tropical storms, with average winds It is level 8~9, or the gust is level 9~10 and may continue. (3) Typhoon orange warning signal icon: Meaning: It may be affected by a strong tropical storm within 12 hours, with average winds reaching level 10 or above, or gusts above level 11; or it may have been affected by a strong tropical storm, with average winds reaching level 10~11. , or gust level 11~12 and may continue.
(4) Typhoon red warning signal Icon: Meaning: It may or has been affected by a typhoon within 6 hours. The average wind force can reach level 12 or above, or it has reached level 12 or above and may continue.