New Yorkers are bracing for a potential heatwave as a high-pressure system is expected to bring scorching temperatures and humidity to the region. Forecasters predict a heat index of over 100 degrees Fahrenheit, prompting concerns about public safety and power grid capacity. As residents prepare for the sweltering weather, local officials are urging residents to stay hydrated and take precautions to avoid heat-related illnesses. Meanwhile, utility companies are gearing up for increased electricity demand, with some warning of potential power outages if usage exceeds capacity.