Tuesday, November 27, 2007

A squall came through here

Pictures on left: see the white-out during the squall @0830hrs
Pictures on right: after the squall passed around 1000hrs


A "Sumatra" squall is an eastwards-moving line of thunderstorms. The line develops at night over Sumatra or the Malacca Straits and moves over the west coast of Peninsular Malaysia and Singapore in the pre-dawn and early morning hours during the Southwest Monsoon season. The squall is characterised by the onset of strong gusty surface winds accompanied by heavy rain over Singapore, lasting 1 to 2 hours. Following their passage, cloudy conditions with light rain sometimes persist till the early afternoon.

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