What is the weather like in blue, yellow and orange on TV?

The warning signals of sudden meteorological disasters officially launched in Beijing are also divided into four colors: blue, yellow, orange and red. Blue is the lightest, rising to the most serious red in turn. There are ten kinds of disastrous weather in Beijing, which are rainstorm, gale, high temperature, cold wave, fog, thunderstorm and gale, sandstorm, hail, blizzard and road icing.