How many colors are there in the weather forecast? Which is the strongest and which is the weakest? (Please arrange in descending order)

Typhoon warning is divided into four levels according to approaching time and intensity, which are represented by blue, yellow, orange and red respectively.

The rainstorm warning signal is divided into three levels, which are represented by yellow, orange and red respectively.

The high temperature warning signal is divided into two levels, which are represented by orange and red respectively.

The cold wave warning signal is divided into three levels, which are represented by blue, yellow and orange respectively.

The fog warning signal is divided into three levels, which are represented by yellow, orange and red respectively.

Thunderstorm and gale warning signals are divided into four levels, which are represented by blue, yellow, orange and red respectively.

Gale warning (except typhoon, thunderstorm and gale) is divided into four levels, which are represented by blue, yellow, orange and red respectively.

The warning signal of sandstorm is divided into three levels, which are represented by yellow, orange and red respectively.

The hail warning signal is divided into two levels, which are represented by orange and red respectively.

Snow disaster warning signals are divided into three levels, which are represented by yellow, orange and red respectively.

The warning signal of road icing is divided into three levels, which are represented by yellow, orange and red respectively.

(All arrangements from small to large)