A heat wave is a prolonged period of excessively hot weather, which may be accompanied by high humidity. These events can last for several days or even weeks, leading to temperatures significantly above average for a specific region. Heat waves can pose serious health risks, especially for vulnerable populations such as the elderly and those with pre-existing health conditions. During a heat wave, the risk of heat-related illnesses, such as heat exhaustion and heat stroke, increases. It is important for individuals to stay hydrated and seek cooler environments. Meteorologists use various criteria, including temperature thresholds and duration, to define and predict heat waves, helping communities prepare for extreme weather conditions.