"drastic and intense warmup"
A historic heat wave in the West was forecast to roll eastward this week after Phoenix, Las Vegas and Denver joined a plethora of cities and towns posting record temperatures and more than 50 million Americans sweltered under heat advisories.

"drastic and intense warmup"
A historic heat wave in the West was forecast to roll eastward this week after Phoenix, Las Vegas and Denver joined a plethora of cities and towns posting record temperatures and more than 50 million Americans sweltered under heat advisories.