XN000022-1972-12-12 — Page 12

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Tuesday, December 12, 1972

On November 8 and 9, "Pamela" brought a total of 73.8 mm of rainfall, measured at the Royal Observatory.

Gusts to over 50 knots were recorded at all stations, the maximum being 83 knots at Tate's Cairn. Ten aircraft were diverted from Kai Tak on

November 8.

A cold front moved south through the Colony late on November 9, and the next day was fine with low humidities and almost continuous sunshine.

However, on November 11 winds became easterly, and for the next 12 days the Colony remained under the influence of a moist easterly airstream.

There was little sunshine and intermittent rain.

Late on November 16 a cold front passed through Hong Kong, causing the temperature to fall from a maximum of 27.7°C on that day to a minimum of 20.1°C the next morning.

Continuous Rain

The unpleasant weather reached a climax on November 23 with overcast skies and almost continuous rain, resulting in 15.8 mm of rainfall at the Royal Observatory. The minimum temperature of the month, 14.5°C, also occurred

on the same day.

Another cold front moved south, crossing the south China coast late on November 23. The next day was brilliantly fine with a mean relative humidity of 58%, compared with 90% the day before.

For the rest of the month Hong Kong remained in a dry airstream

associated with the continental anticyclone over China and the weather was fine with low humidities and long periods of sunshine.

On November 30, the anticyclone over China intensified. As strong

winds were expected overnight, the Strong Monsoon Signal was hoisted at 7.45 p.m.

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