A woman and her baby in heavy clothes in Hong Kong yesterday, when the city issued its first cold warning this winter, forecasting that the minimum temperature would drop to around 12 degrees Celsius today. Shenzhen’s meteorological observatory hoisted a yellow cold warning signal yesterday afternoon, the lowest of its three-tier cold warning system, and a blue wind warning signal, also the lowest of a three-tier wind warning system. Shenzhen is expected to record a minimum temperature of below 10 degrees Celsius today. The mercury will rise Saturday. Hong Kong China News Agency