Typhoon classification in Xiamen

There are four grades: blue, yellow, orange and red.

1, blue: blue represents slight impact, typhoon is offshore, and the weather is strong.

2. Yellow: Yellow means the impact is heavy, the typhoon is approaching, the weather is strong and it will be accompanied by heavy rain.

3. Orange: orange means serious impact, typhoon approaching or landing, strong weather and continuous rainstorm.

4. Red: Red means that the impact is extremely serious. The typhoon landed, and the weather was very strong, accompanied by destructive rainstorm.