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Online quiz to test your knowledge on weather observation

To reinforce weather observation knowledge learnt by the members of the Hong Kong Air Scout and the Hong Kong Air Cadet Corps who joined the workshop on aviation weather observation (, the Observatory launched an online quiz on weather observations and invited them for a self-challenge in March. A simplified set of the quiz was also available for the general public during the Observatory Open Day this year.

This challenging online quiz is now open in phases to the public to promote knowledge on quality weather observation. To share the fun, please visit


Figure 1  Sample photos of the quiz showing horizontal visibility and cloud type