There are 16 types of disaster weather warning signals, namely: typhoon, heavy rain, blizzard, cold wave, strong wind, sandstorm, high temperature, drought, thunder and lightning, hail, frost, heavy fog, haze, road ice, thunderstorm and strong wind, and forest fire danger.

1. The first is the water factor: manifested as floods, waterlogging (waterlogging) damage, moisture damage, freezing floods, freezing waterlogging, and grassland white damage caused by excessive water; atmospheric drought, soil drought, and crop physiological drought caused by severe insufficient water.

, grassland black disaster.

?2. The second is the temperature factor: manifested as "high temperature failure", "high temperature pushing ripeness", extreme heat after rain, and heat stroke caused by too high temperatures; cold damage, freezing damage, frost, and cold damage caused by too low temperatures.

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?3. The third factor is the light factor: burns and sunburn caused by excessive light; damage caused by severe lack of light.

?4. The fourth is the ice and snow factor: manifested as blizzard, ice, freezing and thawing, and slurry return.

?5. The fifth factor is other factors: hail, strong wind, lightning, and fog.

?6. Sixth are composite factors: sandstorms, continuous rain, hot and dry winds, foehns, typhoons, and snowstorms.

Characteristics of Meteorological Disasters Weather and climate disasters refer to typhoons (tropical storms, severe tropical storms), heavy rain (snow), thunderstorms, hail, strong winds, sand dust, tornadoes, heavy (dense) fog, high temperature, low temperature, continuous rain,

Disasters directly caused by freezing rain, frost, ice (accumulation), cold waves, drought, hot and dry winds, heat waves, floods, accumulated waterlogging and other factors.

Meteorological secondary and derivative disasters refer to disasters such as landslides, mudslides, storm surges, forest fires, acid rain, and air pollution caused by meteorological factors.