 AVERAGE IN AREAS LIKE PHOENIX OR ALL THE WAY OVER INTO DEATH VALLEY IN CALIFORNIA. THIS IS NORMAL IN THAT AREA. BUT DAYTIME HIGHS ARE WELL ABOVE AVERAGE RIGHT NOW IN TEXAS. DALLAS, FOR EXAMPLE, USUALLY WE'RE IN THE LOW 90s, UPPER 80s. TODAY WE'RE IN THE 90s AND WE'RE CONTINUING TO SEE MORE TRIPLE DIGIT WEATHER RETURN INTO THE FORECAST FOR AN EXTENDED PERIOD OF AROUND EIGHT DAYS JUST AHEAD OF US. SO TAKE A LOOK RIGHT BEHIND ME. AS WE HEAD INTO THE NEXT COUPLE DAYS, THERE'S SOMETHING I WANT TO TALK ABOUT. THIS AREA OF HIGH PRESSURE, IT ACTS LIKE A HEAT DOME.