The heatwave poses significant risks to vulnerable populations, including the elderly and individuals with respiratory conditions. Prolonged exposure to high temperatures can lead to heat-related illnesses such as heat exhaustion, heat rash, and heat stroke. Symptoms like nausea, confusion, and dizziness require immediate medical attention. The heat indices, which combine temperature and humidity, are expected to feel like 100-110°F, limiting relief even during nighttime hours. Outdoor gatherings for July 4 celebrations may further increase the risk of heat-related health issues.