Backward Trajectory Map in May 2014
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									 The backward trajectory map of air mass reaching Hong Kong in May 2014 is now available at the following webpage: http://www.weather.gov.hk/en/wxinfo/trajectory/trajectoryMonthly.shtml  | 
							
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									 The backward trajectory map of air mass reaching Hong Kong in May 2014 is now available at the following webpage: http://www.weather.gov.hk/en/wxinfo/trajectory/trajectoryMonthly.shtml  |