In Nangong City of Hebei province, mercury rose to 39.3 degrees Celsius on Saturday afternoon, making it the hottest city in the country and breaking the provincial high temperature record during the same period of time.
Ten counties and cities in the central and southern part of Hebei saw temperatures rise to above 38 degrees Celsius on Saturday, including the provincial capital Shijiazhuang, where the temperature reached 38.5 degrees Celsius, the second-highest in the country.
Beijing's temperature reached 37.2 degrees Celsius, breaking the city's record in May since 1951.
The capital city is mulling a new indexed heatstroke forecast that differentiates heliosis probabilities for people of different age and sex, according to Huang Zhuo, a researcher with thenational meteorological center.
The current heatstroke forecasts are based on temperature, humidity and wind force but take no account of pathology of people with varied physique.
The newheatstroke indexwill be added to weather forecast before the Beijing Olympics, Huang said.
Vocabulary:
warm air mass：暖气团
national meteorological center：国家气象局
heatstroke index ：中暑指数