clipped from: news.yahoo.com 
LOS ANGELES - A heat wave sizzling across the West showed little sign of letting up Thursday, with Las Vegas forecast to tie a record high and even northern Idaho expected to top 100 degrees.
"You can become dehydrated really quick before you know it. You step outside and, 'wow,'" said Charlie Schlott, a meteorologist with the National Weather Service in Las Vegas.
In Las Vegas, the temperature reached 100 by 9 a.m., well on its way to the forecast record high for the day of 116, according to the National Weather Service. The mercury last reached 116 on the date in 1985.