The oppressive heat and humidity pose health risks, particularly for vulnerable populations such as the elderly, children, and those with pre-existing health conditions. Heat indices near 100°F (38°C) can lead to heat-related illnesses if precautions are not taken. There is also a low-level risk of flash flooding due to heavy downpours from thunderstorms, and damaging straight-line winds are possible in areas west of New York City. Residents are advised to stay alert for changing weather conditions.