How many levels of meteorological disasters are there in China? What degree of disaster does each represent?

According to the standard of disastrous weather and climate intensity and the degree of casualties and property losses caused by major meteorological disasters, major meteorological disasters are identified as four levels of early warning: general (level IV), major (level III), serious (level II) and particularly serious (level I): level I early warning: particularly serious (red). In the administrative area of a province (autonomous region or municipality) or within the administrative areas of several provinces, the meteorological offices and stations subordinate to the competent meteorological departments shall make disaster forecasts. Or the meteorological level of geological disasters reaches level 5, and the meteorological level of forest (grassland) fire danger reaches level 5. Level II early warning: major (orange) in a province (autonomous region, city) administrative region, the meteorological stations subordinate to the competent meteorological department forecast a disastrous weather and climate process, and its intensity reached the disastrous weather and climate standard formulated by the competent meteorological department of the State Council. Or the meteorological grade of geological disasters reaches Grade 4, and the forest (grassland) fire risk grade reaches Grade 4. Grade III early warning: In a large (yellow) administrative area of a province (autonomous region or municipality), the meteorological stations subordinate to the competent meteorological department forecast the occurrence of disastrous weather and climate process, and the intensity reached the major disastrous weather and climate standards formulated by the competent meteorological department of the State Council. Or the meteorological grade of geological disasters reaches Grade III, and the meteorological grade of forest (grassland) fire danger reaches Grade III. Iv-level early warning: generally (blue), in a province (autonomous region or municipality) administrative region, the meteorological stations subordinate to the competent meteorological department predict the occurrence of disastrous weather and climate process, and the intensity reaches the disastrous weather and climate standard stipulated by the competent meteorological department of the State Council, or the meteorological grade of geological disasters reaches Grade II, and the meteorological grade of forest (grassland) fire danger reaches Grade II.