The heat wave in the western and central U.S. poses major health risks, including heat exhaustion and heat stroke, particularly for those without access to cooling or hydration. Vulnerable populations such as the elderly, children, and outdoor workers are at heightened risk. In contrast, the cooler and wetter conditions in the Northeast may lead to localized flooding due to heavy rainfall and thunderstorms. Residents in affected areas should remain vigilant and take necessary precautions.