The dangerous heat conditions are expected to affect all of South Florida, with heightened risks for heat-related illnesses such as heat exhaustion and heat stroke. Vulnerable groups, including children, the elderly, and individuals with chronic health issues, are particularly at risk. Outdoor workers and those engaging in physical activities outdoors should exercise caution. The lack of cooling factors like storms or ocean breezes exacerbates the situation, making it critical for residents to take preventive measures.