Temperatures in some parts of Hong Kong could hit 37 degrees Celsius (99 Fahrenheit) or above over the coming weekend under the influence of Tropical Cyclone Dolphin, according to the city’s forecaster, which warned residents to take precautions against heatstroke.The Hong Kong Observatory said weak winds would linger over the city on Friday, with hot weather persisting over the next few days and pushing temperatures to 37 degrees or higher in some areas.“Under the influence of the outer subsiding air of Tropical Cyclone Dolphin, the weather will be extremely hot over the weekend,” the forecaster said.Dolphin is expected to travel across the Ryukyu Islands and the East China Sea before moving towards the vicinity of Zhejiang and the northern part of Fujian.“Members of the public should pay due attention to physical conditions and beware of heatstroke, especially when engaging in outdoor activities,” the Observatory said.The intense heat on Friday coincides with a date on the Chinese lunar calendar that traditionally signifies the official commencement of autumn.