Extreme Heat: A Prevention Guide
A guide to preventing accidents and injuries from extreme heat, including planning ahead, staying safe, and treating hot weather health emergencies. From the Center for Disease Control and Prevention.
Wikipedia: Heat Wave
Describes the phenomenon of heat waves, which are prolonged periods of excessive heat that may by accompanied by excessive humidity. Includes links to articles on major heat waves.
Are You Ready? Extreme Heat
Fact sheet about extreme heat and how to protect yourself, including a map of at-risk regions and a table of heat-induced illnesses and their treatments. From FEMA.
Heat Wave: A Major Summer Killer
Pamphlet about heat wave safety and preparedness, from the National Weather Service.