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Mean Wind

Mean Wind

10 minutes Mean wind
  M            :   Under Maintenance / Data Temporarily Not Available
  VRB        :   variable
 Calm         :   calm
 easterly wind of 18 km/h  :   easterly wind of 18 km/h
 easterly wind of 90 km/h    :   easterly wind of 90 km/h
 Station higher than 500 metres above mean sea level            :   Station higher than 500 metres above mean sea level
   Community Weather Information Network (Co-WIN) station(s) is/are shown in purple           :   Community Weather Information Network (Co-WIN) station(s) is/are shown in purple

 Explanatory note

Points to note:
(i)The Observatory has set up backup weather stations and anemometers in some areas. When the main weather stations or anemometers in those areas are under maintenance, the webpage will display data from the backup stations or anemometers.
(ii)Move the mouse cursor onto the place of your choice to see the values of wind direction and speed. Click the mouse once you will see a time series plot of the variation of wind direction and speed in the past 24 hours, as well as information of the station in operation.
(iii) The data displayed is provisional. Only limited data validation has been carried out.
(iv) When the anemometer of Chek Lap Kok is under maintenance, wind data of Chek Lap Kok may be temporarily provided by another wind station within the Hong Kong International Airport.