Extreme Heat Preparedness Information

Programs that increase public awareness of the measures that people can take before and during a major heat wave to keep their places of residence as cool as possible, to preserve water, to avoid heat disorders and overexposure to the sun, to recognize the symptoms of heat disorders and to be prepared to administer first aid as appropriate. When temperatures and the heat/humidity index are expected to be 100 degrees Fahrenheit or higher, a heat advisory is issued. A heat warning is issued for temperatures and/or heat indices of 110 degrees Fahrenheit or higher. The exact combination of indices may vary between jurisdictions and may include factors such as dew point, cloud cover, humidity, wind speed and direction, and the duration of the hot spell. Extreme heat can be very dangerous when combined with high humidity or drought conditions.