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Weather Information for Aviation Sports

Weather Chart
Surface Chart

Weather of Hot Spots for Aerial Sports

Latest Weather Photo Map
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Tsim Sha Tsui
(looking towards the east)
Variation of 10-minute Mean Wind Direction and Speed Map
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24-hour Time Series of 10-minute Mean Wind Speed ( ___ ), 10-minute Maximum Gust ( - ) and
Maximum Gust minus Mean Wind Speed ( bar )
Variation of 10-minute Mean Wind Speed
Variation of 10-minute Mean Wind
24-hour Time Series of 10-minute Mean Wind Direction ( ___ )
Variation of 10-minute Mean Wind Direction
HKO
Tips
The figure following symbols Up and Down are the forecast/recorded temperature at HKO on the day, and could be regarded as the range of temperature variation on that day.
°C
%

Tephigram
Satellite
Radar
Lightning
Tephigram —Temperature
—Dew Point Temp.
Thermal Index Tips

Estimated Surface
Temperature (oC)

Height
Wind		 Thermal Index
(Soaring Conditions)
5000ft (1524m) Wind barb N.A.
4000ft (1219m) Wind barb N.A.
3000ft (914m) Wind barb N.A.
2000ft (609m) Wind barb N.A.
1000ft (304m) Wind barb N.A.

Consider an air parcel. If it is warmer than its surrounding it will rise. The Thermal Index is derived based on the temperature difference between the air parcel and its surrounding. It is commonly used to indicate the soaring conditions at various heights.
Soaring Index Tips
(Soaring Conditions)


The Soaring Index is commonly calculated using weather information between 5000 feet ( 1524 meters ) and 20000 feet ( 6096 meters ) to measure the lift offered by convective clouds.
Weather Forecast for Local Aviation















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Sunset:





Moonrise





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Tide/Sea Temp




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For general enquiries on the content of this page, please call Experimental Officer 
(Aviation Weather Forecast and Warning Services) at 2926 8369 during office hours on Monday to Friday (except public holidays).