A "Cold Wave" refers to a significant drop in temperature over a short period, often leading to unusually cold weather conditions. This phenomenon typically occurs when a mass of cold air moves into an area, causing temperatures to fall below normal levels for several days or longer. Cold waves can result in frost, ice, and even snow, impacting daily life and activities. Cold waves can pose risks to health and safety, especially for vulnerable populations. They can lead to hypothermia and frostbite, as well as disrupt transportation and power supply. Meteorologists monitor these events closely to provide warnings and help communities prepare for the harsh conditions associated with a cold wave.