British authorities are issuing dire warnings, as temperatures may reach 104 degrees Fahrenheit in southern Britain, a region usually known for moderate summer heat, with July highs in the 70s. It's the first time such a forecast has been made in the area. In Britain, few homes, apartments, schools or small businesses have air conditioning, making residents particularly vulnerable. London Underground subway passengers are being advised not to travel Monday and Tuesday, because the heat is expected to affect rails and might cause delays, authorities said. Tap the link in bio to read more. 📸@apnews, @afpphoto via @gettyimages #britain #heatwave