Northwesterly winds have entered Karachi and it is predicted that the temperature in the city will drop to single digits, according to the Pakistan Meteorological Department. On Tuesday, mercury in the city was recorded at 13 degrees Celcius. The Met Office has forecast cold and dry weather in Sindh throughout this week. It said that the temperature in the city is expected to drop to single digits, between 9 and 11 degrees Celcius, from Wednesday, December 15. Experts have warned that the cold will intensify in the upcoming week. On December 11, Karachi recorded its coldest day of the season so far after the temperature dropped to 10 degrees. Earlier, chief meteor...