Several strong winds will cause flights to be grounded.

Level 6-8 may cause the flight to be grounded. When the wind force is below level 5, including level 5, it will not affect the take-off of the plane. When the wind is 6 to 8, the plane takes off according to the wind direction. If it is against the wind, the plane can take off. If the wind is downwind, the big plane needs to lengthen the runway to take off. The small plane may be late, and it will have to wait until the wind is light. They need to stop flying when there is strong wind or thunderstorm.