Italy's health ministry confirmed on Tuesday that all 27 of the nation's largest cities will be classified under the highest heat alert level on Thursday as the country faces its fourth major heatwave of the summer.
As of Tuesday and Wednesday, 25 cities were already placed on red alert. The two cities not yet at that threshold - Messina and Reggio Calabria, located in the far south of the country - are scheduled to be upgraded to the maximum alert category on Thursday, the ministry said.
What the red alert means
Officials describe a red alert as an indication of a possible health emergency when prolonged high temperatures create a serious risk to health across the population, affecting not only vulnerable groups but also young and otherwise healthy people. Local authorities have issued clear guidance to residents in affected areas: avoid direct heat exposure and sunlight during the hottest hours between 11:00 a.m. and 6:00 p.m., remain indoors whenever feasible, and maintain adequate fluid intake.
Temperatures have reached approximately 40 degrees Celsius (104 degrees Fahrenheit) in some areas, underscoring the intensity of the current event. Meteorologists attribute the heatwave to a North African anticyclone that has strengthened over the Mediterranean and expanded across much of Europe.
Forecasters reported that little respite is expected before the weekend, leaving communities under prolonged stress from elevated temperatures.
Practical implications
The nationwide elevation to the top alert level is intended to coordinate public health messaging and local responses, including advisories on outdoor activity and hydration. Authorities emphasized that the risk extends beyond traditionally vulnerable groups, signaling that broader public health measures may be warranted while the heatwave persists.
Note: Information in this report reflects the statements and forecasts provided by the health ministry and meteorological sources as cited in the official announcement.