Which color level is the highest in weather warning?

There are four warning levels, namely blue warning, yellow warning, orange warning and red warning.

They stand for average, heavy, serious and particularly serious.

Blue warning: blue warning signal of blizzard and blue warning signal of rainstorm. Yellow warning: yellow warning signal for typhoon, yellow warning signal for yellow rainstorm warning signal and cold wave. Orange warning: typhoon orange warning signal and rainstorm orange warning signal. Red Warning: Red signal of typhoon red warning signal and rainstorm.