上海气温破40度 气象台发红色预警
（上海11日综合电）中国上海市于周日发布今年首个高温红色预警，中心城区气温已达摄氏40度，为2018年来首次。
据中国天气网消息，上海中心气象台在周日下午2时15分发布了高温红色预警，原因是受副热带高压影响，目前上海市中心城区气温已达摄氏40度。
这个高温由上海徐家汇气象观测站在下午2时12分测得，为该观测站有记录以来测得40度高温最早的一次，而徐家汇上次测得如此高温还是在2017年7月25日。
高温红色预警的标准为24小时内最高气温将升至40度以上。
上海近期因持续高温，全市电力负荷于上周五已攀升至历史高位。
在上海市闵行区，外卖配送员周日在烈日下骑行。（新华社）
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