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Rainstorms on 18 October 2002

(18 October 2002)

The Red Rainstorm Warning Signal issued by the Hong Kong Observatory this morning is the latest Red Rainstorm Warning in a year since the operation of the Rainstorm Warning System in 1992.

The heavy rain this morning was caused by an unstable and moist airstream. More than 100 millimetres of rainfall were recorded over the northern part of Hong Kong Island, Kowloon, Tseung Kwan O and Sai Kung. The rain was heaviest in Kwun Tong and Clear Water Bay where more than 200 millimetres of rainfall were registered. The rainfall distribution for today was rather uneven, with less than 10 millimetres of rain in the northern part of the New Territories.

The effective time of the warning signals is summarized as follows:

Yellow Rainstorm Warning: 9:57 am to 10:35 am
Red Rainstorm Warning: 10:35 am to 1:20 pm
Thunderstorm Warning: 2:00 am to 1:30 pm

The second latest date for the issuance of Red Rainstorm Warning Signal in a year is 6 October in 1995.

A rainfall distribution map for today (up to 6 pm) is attached.

A rainfall distribution map for today (up to 6 pm)
A rainfall distribution map for today (up to 6 pm)

For latest weather forecast, please refer to the following webpages: (Local Weather Forecast) (5-Day Forecast)

Last revision date: <20 Dec 2012>