frontal fog Directory References Discover 7 of the World’s Deadliest Plants 7 Drugs that Changed the World Why Do Some Cicadas Appear Only Every 17 Years? 7 Deadliest Weapons in History Who Invented the Internet? Ten Days That Vanished: The Switch to the Gregorian Calendar Water Fluoridation: Just the Facts Contents frontal fog meteorology Ask Our Chatbot a Question Ask Our Chatbot a Question Learn about this topic in these articles:formation In fogFrontal fog forms near a front when raindrops, falling from relatively warm air above a frontal surface, evaporate into cooler air close to the Earth’s surface and cause it to become saturated. Read More