Do you know the weather warning signal for tomorrow?
Early warning signals are generally divided into four levels (IV, III, II and I). According to the severity and urgency of the disaster, the colors are blue, yellow, orange and red in turn, and they are marked in Chinese and English, representing ordinary, heavy, serious and particularly serious respectively. According to the characteristics and early warning ability of different disasters, the early warning grades and standards of different disasters are determined. When multiple meteorological disasters occur or may occur at the same time, they can be compared.
Typhoon warning signal
Typhoon warning signal is divided into four levels according to approaching time and intensity, which are represented by blue, yellow, orange and red respectively. Blue indicates that it may be affected by tropical depression within 24 hours, with an average wind force of more than 6 or a gust of more than 7; Or it has been affected by the tropical depression, with an average wind force of 6-7, or a gust of 7-8 and may continue. Yellow means that it may be affected by tropical storms within 24 hours, with an average wind force of more than 8 or a gust of more than 9; Or it has been affected by tropical storms, with an average wind force of 8-9, or a gust of 9- 10 and may continue. Orange indicates that 12 hours may be affected by a strong tropical storm, and the average wind force can reach 10 or gust11; Or have been affected by a strong tropical storm, the average wind force 10 ~ 1 1, or the gust112 may continue. Red indicates that it may or has been affected by typhoon within 6 hours, and the average wind power can reach 12 or above, or it has already reached.
Second, the rainstorm warning signal
The rainstorm warning signal is divided into three levels, which are represented by yellow, orange and red respectively. Yellow means that the rainfall will exceed 50 mm within six hours, or it will exceed 50 mm and the rainfall may continue. Orange means that the rainfall will exceed 50 mm within three hours, or it will exceed 50 mm and the rainfall may continue. Red indicates that the rainfall in three hours will exceed 65,438+000 mm, or the sum of 65,438+000 mm..
Third, the high temperature warning signal
The high temperature warning signal is divided into two levels, which are represented by orange and red respectively. Orange means that the maximum temperature will rise above 37℃ within 24 hours. Red indicates that the maximum temperature will rise above 40℃ within 24 hours.
Fourth, the cold wave warning signal
The cold wave warning signal is divided into three levels, which are represented by blue, yellow and orange respectively. Blue means that the minimum temperature will drop by more than 8℃ within 24 hours, the minimum temperature is less than or equal to 4℃, and the average wind power can reach more than 6 or the gust is more than 7; Or it has dropped by more than 8℃, the lowest temperature is less than or equal to 4℃, the average wind force is above 6, or the gust is above 7, and it may continue. Yellow indicates that the minimum temperature will drop by more than 12℃ within 24 hours, the minimum temperature is less than or equal to 4℃, and the average wind power can reach more than 6, or the gust is more than 7; Or it has dropped above 12℃, the lowest temperature is less than or equal to 4℃, the average wind force is above 6, or the gust is above 7, and it may continue. Orange means that the minimum temperature will drop by 16℃ or more within 24 hours, the minimum temperature is less than or equal to 0℃, and the average wind power can reach above 6 or the gust is above 7; Or it has dropped above 16℃, the lowest temperature is less than or equal to 0℃, the average wind force is above 6, or the gust is above 7, and it may continue.
Five, fog warning signal
The fog warning signal is divided into three levels, which are represented by yellow, orange and red respectively. Blue indicates that fog with visibility less than 500m may appear within 12 hours, or fog with visibility less than 500m and greater than 200m may appear and continue. Yellow indicates that fog with visibility less than 200 meters may appear within 6 hours, or fog with visibility less than 200 meters and greater than 50 meters may continue.
Six, thunderstorm gale warning signal
Thunderstorm and gale warning signals are divided into four levels, which are represented by blue, yellow, orange and red respectively. Blue indicates that it may be affected by thunderstorms and strong winds within 6 hours, with an average wind force of more than 6, or a gust of more than 7 accompanied by lightning; Or have been affected by thunderstorms and strong winds, with an average wind force of 6-7, or gusts of 7-8 accompanied by lightning, and may continue. Yellow means that it may be affected by thunderstorms and strong winds within 6 hours, and the average wind force can reach 8 or above, or the gust is 9 or above with strong lightning; Or it has been affected by thunderstorms and strong winds, with an average wind force of 8-9, or a gust of 9- 10 accompanied by strong lightning, which may continue. Orange indicates that it may be affected by thunderstorms and strong winds within 2 hours, and the average wind force 10 or gust 1 1 is accompanied by strong lightning; Or it has been affected by thunderstorm and gale, and the average wind force10-1,or gust11-kloc-0/2, accompanied by strong lightning, may continue. Red indicates that it may be affected by thunderstorms and strong winds within 2 hours, and the average wind power can reach 12. Or it has been affected by thunderstorms and strong winds, and the average wind force is above 12 with strong lightning, and it may continue.
Seven, strong wind warning signal
The warning signal of gale (except typhoon, thunderstorm and gale) is divided into four levels, which are represented by blue, yellow, orange and red respectively. Blue indicates that it may be affected by strong winds within 24 hours, and the average wind force can reach above 6 or gust above 7; Or have been affected by strong winds, with an average wind force of 6-7, or gusts of 7-8, and may continue. Yellow indicates that 12 hours may be affected by strong winds, with an average wind force of 8 or above or a gust of 9 or above; Or it has been affected by strong winds, with an average wind force of 8-9, or a gust of 9- 10 and may continue. Orange indicates that it may be affected by strong winds within 6 hours, and the average wind force can reach 10 or gust11; Or have been affected by strong winds, with average wind force 10- 1 1, or gust112, and may continue. Red indicates that there may be gale with average wind power 12 or above within 6 hours, or there is already average wind power.
Eight, sandstorm warning signal
The warning signal of sandstorm is divided into three levels, which are represented by yellow, orange and red respectively. Yellow indicates that sandstorm weather may occur within 24 hours (visibility is less than1000m) or it has already occurred and may continue. Orange indicates that there may be strong sandstorm weather (visibility less than 500m) within 12h or it has already appeared and may continue. Red means it may happen within 6 hours.
Nine, hail warning signal
The hail warning signal is divided into two levels, which are represented by orange and red respectively. Orange indicates that there may be hail with lightning weather within 6 hours, which may cause hail disaster. Red indicates that there is a high possibility of hail with lightning weather within 2 hours, which may cause a large hail disaster.
Ten, snow disaster warning signal
Snow disaster warning signals are divided into three levels, which are represented by yellow, orange and red respectively. Yellow indicates that there may be snowfall within 12 hours, which may affect traffic or animal husbandry. Orange indicates that there may be snowfall affecting traffic or animal husbandry within 6 hours, or it has already occurred and may continue. Red indicates that there may be snowfall affecting traffic or animal husbandry within 2 hours, or it has already happened.
Eleven, road icing warning signal
The warning signal of road icing is divided into three levels, which are represented by yellow, orange and red respectively. Yellow indicates that road icing may occur within 12 hours. Orange indicates that the road may freeze within 6 hours. Red indicates that road icing may occur or has occurred within 2 hours.