Tropical cyclones within the area bounded by 5-30N and 50-100E , 7-36N and 100-140E
Last Updated at 2020-10-21 09:32 UTC
Endorsed at the 13th session of Commission for Aeronautical Meteorology (CAeM) of the World Meteorological Organization (WMO) in 2006, the Hong Kong Observatory (HKO) takes lead in establishing a regional "CAeM Pilot Project on Aviation-weather Disaster Risk Reduction (ADRR)". In cooperation with interested WMO Members in the RA II and RA V, airlines, ICAO and the WMO secretariat, the project will study:
  1. The feasibility of providing, on an operational basis, aviation weather forecasts and early warnings for tropical cyclones in close cooperation with all aviation stakeholders;
  2. The skill of such forecasts and warnings for 24-48 hours ahead; and
  3. The benefits to aviation in particular, and in general to the population in the regions affected by natural disasters.

Project Scope
On this dedicated webpage, tropical cyclone forecast track and intensity information up to 48 hours and beyond is provided (check TC Forecast Track and Objective Forecast). Using HKIA as an example, forecasts of weather conditions, e.g. crosswind and turbulence, which might bring airport disruptions are also provided (check HKIA Weather Summary and Take-off Forecast). This is to demonstrate the benefits of such information to aviation stakeholders in the planning of airport operations and large-scale diversions due to tropical cyclones.

For any comments or application of access to ADRR website, please send us an e-mail at
adrr @