What is the "heat index" that the weatherperson talks about during the summer? Also, why is the air comfortable at only 80 degrees F even though body temperature is 98 degrees F?
Out of nowhere comes a flash flood, causing water to rise quickly in your immediate area. Should you jump in your vehicle to get away from the floodwaters or try to escape by foot? Trying to outrun a flood is a bad idea. Here's why.