How many colors are there in the typhoon warning signal?

Typhoon warning signals are divided into five levels, namely white, green, yellow, red and black. A white typhoon signal indicates that a tropical cyclone may affect the local area within 48 hours.

Related instructions

The green signal of typhoon indicates that tropical cyclones may or have affected the local area within 24 hours, and the average wind force can reach 6-7.

The yellow signal of typhoon indicates that tropical cyclone may or has affected the local area within 12 hours, and the average wind force may or has affected the local area within 12 hours. The color typhoon signal indicates that the tropical cyclone may or has affected the local area within 12 hours, and the average wind force is 12 hours.