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at 2:17 p.m. today, shanghai airport officially announced that traffic at the two major airports had resumed. at this time, 18 hours had passed since the two shanghai airports stopped all flights taking off and landing.

affected by typhoon bebejia, all flights at shanghai hongqiao airport and shanghai pudong airport were cancelled after 20:00 on the evening of the 15th.

it was not until 13:43 noon today (16th) that the first flight arrived at pudong airport after the center of typhoon bebejia left shanghai. at 14:11, the first flight arrived at hongqiao airport, and traffic at the two major airports in shanghai resumed. the first outbound flights at pudong airport and hongqiao airport were both carried out after 15:00.

how typhoons affect flights

according to information from the shanghai meteorological observatory, "bebejia" made landfall on the coast of lingang new city, pudong, shanghai at 7:30 this morning as a strong typhoon. when it landed, the maximum wind force near the center was 14, with a wind speed of up to 42 meters per second. it was the strongest typhoon to land in shanghai in 75 years.

some people have questions about this. why did the typhoon land in shanghai in the morning, but shanghai airport stopped all flights at 8 o'clock the night before?

according to the reporter from china business news, before the typhoon arrived, airports and airlines adjusted flights dynamically. for example, the meteorological team of china eastern airlines' operation control center began to monitor the strong typhoon 24 hours a day since september 13.assessment every 3 hoursthe latest development trend of a typhoon. whenever there is a change in the typhoon's position or movement path or intensity development, the meteorological team will immediately release an operational decision forecast.

since this typhoon is the strongest typhoon for shanghai in 75 years, all parties have been more cautious in adjusting flights.

the news that shanghai airport and shanghai airport cancelled all flights after 8pm on the 15th came fromit was published at 17:46 that afternoon.at that time, shanghai airport also stated that it would promptly announce the flight adjustments of the two airports based on the impact of the typhoon.

at 22:16 on the evening of the 15th, shanghai airport announced that more than 40% of inbound and outbound flights were expected to be reduced or cancelled on the 16th. a total of 918 inbound and outbound flights were cancelled at the two airports, including 590 at pudong airport and 328 at hongqiao airport.

it is understood that typhoon weather often causes wind shear, where wind speed and direction change drastically in a short period of time, which may cause a sudden change in the flight status of the aircraft, including sudden descent of the aircraft, especially during low-altitude flight and landing. in addition, typhoons may also trigger local convective weather accompanied by lightning and thunder, and when the aircraft passes through a thunderstorm area, the electric field of protruding parts such as wings and fuselage is very strong, which can easily cause the aircraft to be struck by lightning.

more than 100 aircraft moored

a person from the operation control department of a related airline also told the reporter that the airport canceled flights and resumed traffic after coordination and communication with the airlines, combined with the latest situation of the typhoon. at that time, the typhoon was expected to land after midnight, earlier than the actual landing time. even if the typhoon had not landed, takeoff and landing would be affected by the 10-level wind circle, and some planes had to fly back overnight after flying out of the airport. in addition, the airport also had to give airlines time to "tether" the aircraft, and a series of operations such as post-flight and tethering could be carried out only after the flight landed.

"aircraft mooring" means tying up and fixing the aircraft to prevent it from moving or colliding when the wind is strong. if the wind speed exceeds level 7, the ladder frame must also be moored and tied up, and if the wind is strong, try to store it in a centralized manner.

throughout the day on the 15th, many airlines based in shanghai were working on mooring their aircraft, and some aircraft were arranged to fly out of shanghai overnight to avoid the typhoon.

for example, as of 17:00 on the afternoon of the 15th, china eastern airlines arranged a total of 146 aircraft to stay overnight to avoid the typhoon, and moored a total of 87 aircraft at two airports in shanghai, including 26 at hongqiao airport and 61 at pudong airport. after the typhoon landed in shanghai this morning, china eastern airlines' maintenance personnel also braved the rain to dynamically check whether the aircraft were moored securely at pudong airport.

spring airlines also had 11 aircraft at pudong airport and 6 at hongqiao airport, a total of 17 aircraft were tied up overnight, and all the facilities and equipment on the apron were tied up and fixed. in addition, there were 27 aircraft at other airports in shanghai hongqiao and pudong to take shelter.

in addition, shanghai airport also needs time to complete the mooring and reinforcement work of all aircraft, jet bridges and non-powered equipment on the apron in advance, as well as to check and clear the regulating pools and drainage facilities in the airfield, and focus on cleaning up water accumulation and blockage points within the airport. all of these take a lot of time.

in addition to shanghai airport, airports in the yangtze river delta, such as hangzhou and ningbo, also canceled a large number of flights and gradually resumed normal takeoffs and landings around noon today.

at 10:08 am on the 16th, as longkong airlines flight gj8965 took off smoothly to shenzhen, hangzhou airport gradually resumed normal operations. today, hangzhou airport plans to take off and land 539 flights, and is expected to transport 85,000 passengers. ningbo airport also resumed normal flights in an orderly manner from 11:30 am today, with 158 flights planned for the whole day, including 97 inbound flights and 61 outbound flights.

however, according to the central meteorological observatory, this year's 14th typhoon "prasang" was formed in the northwest pacific ocean on the evening of september 15. at 8 o'clock in the evening, its center was located about 2,200 kilometers southeast of naha city, ryukyu islands. the maximum wind force near the center was level 8 (18 meters/second). it is expected that "prasang" will move northwestward at a speed of 20-25 kilometers per hour, gradually increasing in intensity, heading towards the east my country sea. it is possible to follow the path of "bebejia" and land on the coast of east china again.