 Texas. Senior hurricane specialist Eric Blake says rain will be a big problem. We do expect very heavy rainfall, 5 to 10 inches, 15 inches possible. This can produce areas of flash and urban flooding. Over a third of the U.S. population is under the threat of extreme heat. CBS News Philadelphia meteorologist Andrew Kozak has the details. West Coast temperatures well into the upper 90s, low 100s, and that's of course including the desert southwest. Death Valley, California.