Ask about a commonly used weather symbol. It looks like the number 8 placed horizontally (it is the same as the symbol for infinity in mathematics). What kind of weather does this symbol represent?

Freezing rain is composed of a mixture of ice and water. It freezes immediately when it collides with an object with a temperature below 0°C. It is a kind of disastrous weather seen in early winter or late winter and early spring. Raindrops below 0℃ can remain supercooled in air with a temperature slightly below 0℃. Their appearance is the same as ordinary raindrops. When they fall on an object with a temperature below 0℃, they immediately freeze into a smooth and transparent appearance. The ice layer is called Yusong. Severe rainstorms can break trees and telephone poles, interrupt communications and power supply, hinder highway and railway traffic, and threaten the safety of aircraft.