"Cool Met Stuff" : Contrails

6 March 2015

A new episode is now available at the "Cool Met Stuff" channel on the Observatory webpage. Why do some planes leave white trails in the sky? We will introduce to you the contrails.

You are welcomed to visit the Observatory's "Cool Met Stuff" channel to enjoy the programme (broadcast in Cantonese): http://www.hko.gov.hk/video/wxonairyoutubec2.htm

Please also refer to the following webpage for the broadcast schedule of various TV channels: http://www.hko.gov.hk/video/weatheronair.htm