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打風

又係打風既季節! 想問天文台點決定掛幾號風球?

By ray ng  (middle-school student) on 2012-06-18  Answers 2   Views 104

i can answer

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By goodmorningsir (graduate) on 2012-06-19

3號信號風速範圍為每小時41至62公里,而8號信號則為每小63至117公里。

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By goodmorningsir (graduate) on 2012-06-19

天文台會跟據香港的八個測風站錄得的持續風速來決定。

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