Portugal’s weather authority, IPMA, has expanded a red heat alert to cover 12 districts across mainland Portugal. Originally affecting ten districts, the alert signifies extremely dangerous conditions due to intense heat. This escalation comes as the country continues to experience a significant heatwave. The red alert indicates a high risk to public health, with potentially very dangerous temperatures expected. The warning will remain in effect until Sunday, urging residents to take necessary precautions. Authorities advise the public to stay hydrated, avoid strenuous activity during peak heat hours, and check on vulnerable individuals.