意大利27个主要城市已全部升至红色预警等级，这是今年首次所有城市同时达到最高热警报级别[1]。其中25个城市在周三升至红色预警，另外两个城市将在周四加入[1]。此次升级因第四波热浪加剧，部分地区气温接近40摄氏度[1]。
这场极端高温已造成至少4人丧生，包括一名19岁的番茄采摘工和一名40岁的木匠[1]。极端高温预计至少持续一周[1]。意大利当局向公众发布了防护指导，建议民众避免上午11时至下午6时的阳光直射，并每天至少饮水1.5升[1]。
热浪带来的影响已扩及多个领域。超过100个皮埃蒙特和伦巴第城镇正面临供水困难[1]，农业也遭受严重冲击，其中牛奶产量因高温应激下降10%[1]。大学物理学家指出，今年热浪的强度和持续时间均高于历年平均水平[1]。欧洲升温速度约为全球平均水平的两倍[1]。
Italy has placed all 27 of its major cities on the highest heat alert level for the first time this year, as an intense fourth wave of extreme temperatures sweeps across the country [1]. Twenty-five cities reached red alert status on Wednesday, with two additional cities joining on Thursday [1]. Temperatures in some regions are approaching 40 degrees Celsius [1], and the heatwave has already claimed at least four lives, including a 19-year-old tomato picker and a 40-year-old carpenter [1].
The extreme heat is expected to persist for at least a week [1]. Authorities have advised the public to avoid direct sunlight between 11 a.m. and 6 p.m. and to drink at least 1.5 liters of water daily [1]. Over 100 towns in Piedmont and Lombardy are facing water supply difficulties [1], while agricultural production has suffered significantly, with milk output declining by 10 percent due to heat stress on livestock [1]. According to a university physicist, the intensity and duration of this year's heatwave exceed historical averages [1]. Europe is warming at approximately twice the rate of the global average [1].