Orange alerts, the second-highest level of China's three-tier warning system for high temperatures, have been issued for a number of regions as a heat wave continues in northern China, with parts of the northeast bracing for even higher temperatures in the days ahead, the China Meteorological Administration said.Among those issuing orange alerts during the first heat wave of the year was Beijing, where temperatures hovered around 38 C on Sunday and Monday. According to the CMA's National Meteorological Center, the heat wave is likely to continue through Wednesday in the Beijing-Tianjin-Hebei region and other parts of northern China, with temperatures exceeding 40 C in some areas.Parts of northeastern China, including Liaoning and Jilin provinces, will experience temperatures above 35 C over the next few days, according to weather.com.cn, a website affiliated with the CMA.Although it is still early summer, these regions are experiencing a quick onset of high temperatures, so it ...