The Nat'l Weather Service issues a high heat warning the day before. We kind of...
...watch out for each other. I always travel with extra water, in case someone is stranded without enough to stay hydrated.
Everyone is mindful of pets, even if they're not yours. A call to the authorities will bring a quick response if you suspect a dog is tied up outside with no shade, or worse yet, not enough water. It happens, but people try to work together.
It is very dangerous and we always have tragedy in one form or another. I won't go into detail, but it can kill just as sure as being out in the freezing cold.
Michael