What if there is an early warning on the flight?

Don't worry, apps such as Fei Changzhun and Hanglv will mark "early warning" for flights under weather conditions and flow control, which only represents a forecast and is generally inaccurate. I also encountered several warnings, because the previous flights were delayed, but they all took off on time.

It is a civilized saying that flights cannot take off and land as scheduled, such as flight delays caused by weather.

Early warning signals are composed of names, icons, standards and defense guidelines, which are divided into typhoon, rainstorm, blizzard, cold wave, gale, sandstorm, high temperature, drought, lightning, hail, frost, fog, haze, road icing and so on.

The level of early warning signal is divided into four levels according to the possible harm degree, urgency degree and development trend of meteorological disasters: IV (generally N), III (heavier), II (severe) and I (particularly serious), which are indicated in blue, yellow, orange and red in turn and marked in Chinese and English. Meteorological disaster warning signal and prevention guide.

It is a normal workflow for aircraft to cancel early warning. At the end of each flight, the flight attendants will cancel the warning and cross-check before opening the hatch. If the warning is not cancelled, the slide will be released, which is a serious work mistake.

Aircraft early warning generally refers to the early warning system of hatch emergency escape device. After the plane closes the hatch, the flight attendants set the hatch emergency escape system as an early warning. The purpose is to start the inflatable slide directly after landing or falling after encountering various emergencies in flight.