Which weather forecast grade is more serious, blue, yellow, orange or red?

Among the four levels of weather forecast, the red rainstorm warning signal is the highest and most serious.

The newly added meteorological disaster warning signals are generally divided into four levels (IV, III, II and I), which respectively represent general, heavy, serious and particularly serious.

16 warning signals of sudden meteorological disasters: typhoon, rainstorm, blizzard, cold wave, gale, sandstorm, high temperature, drought, lightning, hail, frost, fog, haze, road icing, thunderstorm and gale, forest fire.

Extended data:

Rainstorm warning grade standard and its defense guide;

1, blue warning

Standard:/kloc-within 0/2 hours, the rainfall will reach more than 50 mm, or it has reached more than 50 mm and the rainfall may continue.

Defense guide:

(1) The government and relevant departments should prepare for the rainstorm according to their respective responsibilities.

(2) Schools and kindergartens should take appropriate measures to ensure the safety of students and children.

(3) Drivers should pay attention to road water and traffic jams to ensure safety.

(4) Check the drainage system of cities, farmland and fish ponds, and prepare for drainage.

2. Yellow warning

Standard: The rainfall will reach more than 50 mm within 6 hours, or it has reached more than 50 mm and the rainfall may continue.

Defense guide:

(1) The government and relevant departments should prepare for the rainstorm according to their respective responsibilities.

(2) The traffic management department takes traffic control measures in heavy rainfall sections according to the road conditions, and implements traffic diversion in the waterlogged sections.

(3) cut off the dangerous outdoor power supply in low-lying areas, stop all outdoor operations in open air places, and transfer people in dangerous areas and residents living in dangerous houses to safe places for shelter from the rain.

(4) Check the drainage system of cities, farmland and fish ponds, and prepare for drainage.

3, orange warning

Standard: within 3 hours, the rainfall will reach more than 50 mm, or it has reached more than 50 mm and the rainfall may continue.

Defense guide:

(1) The government and relevant departments should prepare for the rainstorm according to their respective responsibilities.

(2) Cut off the dangerous outdoor power supply and suspend outdoor work.

(3) Units in dangerous areas should suspend classes or business, and take special measures to protect the safety of students, children and other staff who have arrived at school.

(4) Do a good job in urban and farmland drainage, and pay attention to prevent possible disasters such as mountain torrents, landslides and mudslides.

4. Red warning

Standard: within 3 hours, the rainfall will reach 100 mm or above, or it has reached 100 mm and the rainfall may continue.

Defense guide:

(1) The government and relevant departments shall do a good job in emergency rescue of rainstorm according to their duties.

(2) Stop the assembly, suspend classes and suspend business.

(3) Do a good job in the prevention and rescue of mountain torrents, landslides, mudslides and other disasters.

Baidu Encyclopedia-Meteorological Disaster Warning Signal