Heat dome that killed 61 in Mexico headed toward Southwest, bringing triple-digit temperatures

More than 17 million people risk exposure to dangerous temperatures thanks to a “heat dome” that has emerged in the western United States. Such a dome occurs when hot ocean air becomes trapped, forming something almost like a lid or cap that keeps temperatures broiling. Already this heat wave has been directly responsible for at least 61 deaths in Mexico, causing major power outages and killing at least 150 monkeys....

Originally posted on salon.com