Originally Posted by Reply1984

Typically, the landing at Hong Kong Airport could get more disrupted when the typhoon is moving away from the southwest of Hong Kong. At that time, HKG will have a strong south wind, which would translate into strong crosswinds for the 07/25 runway. More importantly, the south wind will pass through the Lantau before hitting the airport, and this will create significant wind shear situations.

Strong crosswinds plus significant wind shear will bring more trouble for landing aircraft. The long-haul arrival planes carry less fuel and cannot try landing for many times, but to divert to other airports more likely. We have a thread of victims not long ago that they have to stay in the cabin for long hours after diverting to other airports due to the ‘weak’ typhoon.

Used to be my fav airlines [CX 883]

Now back to this case, unfortunately the most affected time is in the morning of Oct 5. I think CX IOC learns something from that case to avoid more trouble of long-haul aircraft diverting to other airports.